Revert "feat(rollup_relayer): add chain_monitor client (#885)"

This reverts commit 3958e8bd86.

.github/scripts/bump_version_dot_go.mjs

@@ -0,0 +1,37 @@
+import { URL } from "url";
+import { readFileSync, writeFileSync } from "fs";
+
+const versionFilePath = new URL(
+  "../../common/version/version.go",
+  import.meta.url
+).pathname;
+
+const versionFileContent = readFileSync(versionFilePath, { encoding: "utf-8" });
+
+const currentVersion = versionFileContent.match(
+  /var tag = "(?<version>v(?<major>\d+)\.(?<minor>\d+)\.(?<patch>\d+))"/
+);
+
+try {
+  parseInt(currentVersion.groups.major);
+  parseInt(currentVersion.groups.minor);
+  parseInt(currentVersion.groups.patch);
+} catch (err) {
+  console.error(new Error("Failed to parse version in version.go file"));
+  throw err;
+}
+
+// prettier-ignore
+const newVersion = `v${currentVersion.groups.major}.${currentVersion.groups.minor}.${parseInt(currentVersion.groups.patch) + 1}`;
+
+console.log(
+  `Bump version from ${currentVersion.groups.version} to ${newVersion}`
+);
+
+writeFileSync(
+  versionFilePath,
+  versionFileContent.replace(
+    `var tag = "${currentVersion.groups.version}"`,
+    `var tag = "${newVersion}"`
+  )
+);

.github/workflows/bridge.yml

@@ -43,8 +43,6 @@ jobs:
         version: '0.8.16'
     - name: Install Geth Tools
       uses: gacts/install-geth-tools@v1
-      with:
-        version: 1.10.19
     - name: Lint
       working-directory: 'bridge'
       run: |
@@ -94,8 +92,6 @@ jobs:
         version: '0.8.16'
     - name: Install Geth Tools
       uses: gacts/install-geth-tools@v1
-      with:
-        version: 1.10.19
     - name: Build prerequisites
       run: |
         make dev_docker

.github/workflows/bump_version.yml

@@ -0,0 +1,61 @@
+name: Bump Version
+
+on:
+  pull_request:
+    branches: [develop]
+    types:
+      - opened
+      - reopened
+      - synchronize
+      - ready_for_review
+
+jobs:
+  try-to-bump:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          ref: ${{ github.head_ref }}
+      - name: check diff
+        id: check_diff
+        run: |
+          set -euo pipefail
+
+          # fetch develop branch so that we can diff against later
+          git fetch origin develop
+
+          echo 'checking verion changes in diff...'
+
+          # check if version changed in version.go
+          # note: the grep will fail if use \d instead of [0-9]
+          git diff HEAD..origin/develop --text --no-ext-diff --unified=0 --no-prefix common/version/version.go | grep -E '^\+var tag = "v[0-9]+\.[0-9]+\.[0-9]+"$' && true
+
+          exit_code=$?
+
+          # auto bump if version is not bumped manually
+          echo '> require auto version bump?'
+
+          if [ $exit_code -eq 0 ]; then
+            echo '> no, already bumped'
+            echo "result=no-bump" >> "$GITHUB_OUTPUT"
+          else
+            echo '> yes'
+            echo "result=bump" >> "$GITHUB_OUTPUT"
+          fi
+      - name: Install Node.js 16
+        if: steps.check_diff.outputs.result == 'bump'
+        uses: actions/setup-node@v3
+        with:
+          node-version: 16
+      - name: bump version in common/version/version.go
+        if: steps.check_diff.outputs.result == 'bump'
+        run: node .github/scripts/bump_version_dot_go.mjs
+
+        # Commits made by this Action do not trigger new Workflow runs
+      - uses: stefanzweifel/git-auto-commit-action@3ea6ae190baf489ba007f7c92608f33ce20ef04a
+        if: steps.check_diff.outputs.result == 'bump'
+        with:
+          skip_fetch: true # already did fetch in check diff
+          file_pattern: "common/version/version.go"
+          commit_message: "chore: auto version bump [bot]"

.github/workflows/common.yml

@@ -88,8 +88,6 @@ jobs:
         version: '0.8.16'
     - name: Install Geth Tools
       uses: gacts/install-geth-tools@v1
-      with:
-        version: 1.10.19
     - name: Build prerequisites
       run: |
         make dev_docker

.github/workflows/coordinator.yml

@@ -104,8 +104,6 @@ jobs:
         version: '0.8.16'
     - name: Install Geth Tools
       uses: gacts/install-geth-tools@v1
-      with:
-        version: 1.10.19
     - name: Build prerequisites
       run: |
         make dev_docker

.github/workflows/database.yml

@@ -81,8 +81,6 @@ jobs:
         version: '0.8.16'
     - name: Install Geth Tools
       uses: gacts/install-geth-tools@v1
-      with:
-        version: 1.10.19
     - name: Build prerequisites
       run: |
         make dev_docker

.github/workflows/integration.yaml

@@ -33,8 +33,6 @@ jobs:
         version: '0.8.16'
     - name: Install Geth Tools
       uses: gacts/install-geth-tools@v1
-      with:
-        version: 1.10.19
     - name: Build prerequisites
       run: |
         make dev_docker

Makefile

@@ -1,5 +1,7 @@
 .PHONY: check update dev_docker build_test_docker run_test_docker clean
 
+L2GETH_TAG=scroll-v4.3.34
+
 help: ## Display this help message
 	@grep -h \
 		-E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | \
@@ -15,14 +17,14 @@ lint: ## The code's format and security checks.
 
 update: ## update dependencies
 	go work sync
-	cd $(PWD)/bridge/ && go get -u github.com/scroll-tech/go-ethereum@scroll-v4.3.34 && go mod tidy
+	cd $(PWD)/bridge/ && go get -u github.com/scroll-tech/go-ethereum@${L2GETH_TAG} && go mod tidy
 	cd $(PWD)/bridge-history-api/ && go get -u github.com/ethereum/go-ethereum@latest && go mod tidy
-	cd $(PWD)/common/ && go get -u github.com/scroll-tech/go-ethereum@scroll-v4.3.34 && go mod tidy
-	cd $(PWD)/coordinator/ && go get -u github.com/scroll-tech/go-ethereum@scroll-v4.3.34 && go mod tidy
-	cd $(PWD)/database/ && go get -u github.com/scroll-tech/go-ethereum@scroll-v4.3.34 && go mod tidy
-	cd $(PWD)/prover/ && go get -u github.com/scroll-tech/go-ethereum@scroll-v4.3.34 && go mod tidy
-	cd $(PWD)/prover-stats-api/ && go get -u github.com/scroll-tech/go-ethereum@scroll-v4.3.34 && go mod tidy
-	cd $(PWD)/tests/integration-test/ && go get -u github.com/scroll-tech/go-ethereum@scroll-v4.3.34 && go mod tidy
+	cd $(PWD)/common/ && go get -u github.com/scroll-tech/go-ethereum@${L2GETH_TAG} && go mod tidy
+	cd $(PWD)/coordinator/ && go get -u github.com/scroll-tech/go-ethereum@${L2GETH_TAG} && go mod tidy
+	cd $(PWD)/database/ && go get -u github.com/scroll-tech/go-ethereum@${L2GETH_TAG} && go mod tidy
+	cd $(PWD)/prover/ && go get -u github.com/scroll-tech/go-ethereum@${L2GETH_TAG} && go mod tidy
+	cd $(PWD)/prover-stats-api/ && go get -u github.com/scroll-tech/go-ethereum@${L2GETH_TAG} && go mod tidy
+	cd $(PWD)/tests/integration-test/ && go get -u github.com/scroll-tech/go-ethereum@${L2GETH_TAG} && go mod tidy
 	goimports -local $(PWD)/bridge/ -w .
 	goimports -local $(PWD)/bridge-history-api/ -w .
 	goimports -local $(PWD)/common/ -w .

bridge-history-api/crossmsg/batch_info_fetcher.go

@@ -95,6 +95,9 @@ func (b *BatchInfoFetcher) fetchBatchInfo() error {
 	} else {
 		startHeight = latestBatchHeight + 1
 	}
+	if startHeight < b.batchInfoStartNumber {
+		startHeight = b.batchInfoStartNumber
+	}
 	for from := startHeight; number >= from; from += fetchLimit {
 		to := from + fetchLimit - 1
 		// number - confirmation can never less than 0 since the for loop condition

bridge/cmd/event_watcher/app/app.go

@@ -7,6 +7,7 @@ import (
 	"os/signal"
 	"time"
 
+	"github.com/prometheus/client_golang/prometheus"
 	"github.com/scroll-tech/go-ethereum/ethclient"
 	"github.com/scroll-tech/go-ethereum/log"
 	"github.com/urfave/cli/v2"
@@ -59,8 +60,8 @@ func action(ctx *cli.Context) error {
 		}
 	}()
 
-	// Start metrics server.
-	metrics.Serve(subCtx, ctx)
+	registry := prometheus.DefaultRegisterer
+	metrics.Server(ctx, registry.(*prometheus.Registry))
 	l1client, err := ethclient.Dial(cfg.L1Config.Endpoint)
 	if err != nil {
 		log.Error("failed to connect l1 geth", "config file", cfgFile, "error", err)
@@ -72,8 +73,12 @@ func action(ctx *cli.Context) error {
 		log.Error("failed to connect l2 geth", "config file", cfgFile, "error", err)
 		return err
 	}
-	l1watcher := watcher.NewL1WatcherClient(ctx.Context, l1client, cfg.L1Config.StartHeight, cfg.L1Config.Confirmations, cfg.L1Config.L1MessengerAddress, cfg.L1Config.L1MessageQueueAddress, cfg.L1Config.ScrollChainContractAddress, db)
-	l2watcher := watcher.NewL2WatcherClient(ctx.Context, l2client, cfg.L2Config.Confirmations, cfg.L2Config.L2MessengerAddress, cfg.L2Config.L2MessageQueueAddress, cfg.L2Config.WithdrawTrieRootSlot, db)
+
+	l1watcher := watcher.NewL1WatcherClient(ctx.Context, l1client, cfg.L1Config.StartHeight, cfg.L1Config.Confirmations,
+		cfg.L1Config.L1MessengerAddress, cfg.L1Config.L1MessageQueueAddress, cfg.L1Config.ScrollChainContractAddress, db, registry)
+
+	l2watcher := watcher.NewL2WatcherClient(ctx.Context, l2client, cfg.L2Config.Confirmations, cfg.L2Config.L2MessengerAddress,
+		cfg.L2Config.L2MessageQueueAddress, cfg.L2Config.WithdrawTrieRootSlot, db, registry)
 
 	go utils.Loop(subCtx, 10*time.Second, func() {
 		if loopErr := l1watcher.FetchContractEvent(); loopErr != nil {

bridge/cmd/gas_oracle/app/app.go

@@ -7,6 +7,7 @@ import (
 	"os/signal"
 	"time"
 
+	"github.com/prometheus/client_golang/prometheus"
 	"github.com/scroll-tech/go-ethereum/ethclient"
 	"github.com/scroll-tech/go-ethereum/log"
 	"github.com/urfave/cli/v2"
@@ -61,8 +62,8 @@ func action(ctx *cli.Context) error {
 		}
 	}()
 
-	// Start metrics server.
-	metrics.Serve(subCtx, ctx)
+	registry := prometheus.DefaultRegisterer
+	metrics.Server(ctx, registry.(*prometheus.Registry))
 
 	l1client, err := ethclient.Dial(cfg.L1Config.Endpoint)
 	if err != nil {
@@ -78,14 +79,14 @@ func action(ctx *cli.Context) error {
 	}
 
 	l1watcher := watcher.NewL1WatcherClient(ctx.Context, l1client, cfg.L1Config.StartHeight, cfg.L1Config.Confirmations,
-		cfg.L1Config.L1MessengerAddress, cfg.L1Config.L1MessageQueueAddress, cfg.L1Config.ScrollChainContractAddress, db)
+		cfg.L1Config.L1MessengerAddress, cfg.L1Config.L1MessageQueueAddress, cfg.L1Config.ScrollChainContractAddress, db, registry)
 
-	l1relayer, err := relayer.NewLayer1Relayer(ctx.Context, db, cfg.L1Config.RelayerConfig)
+	l1relayer, err := relayer.NewLayer1Relayer(ctx.Context, db, cfg.L1Config.RelayerConfig, registry)
 	if err != nil {
 		log.Error("failed to create new l1 relayer", "config file", cfgFile, "error", err)
 		return err
 	}
-	l2relayer, err := relayer.NewLayer2Relayer(ctx.Context, l2client, db, cfg.L2Config.RelayerConfig, false /* initGenesis */)
+	l2relayer, err := relayer.NewLayer2Relayer(ctx.Context, l2client, db, cfg.L2Config.RelayerConfig, false /* initGenesis */, registry)
 	if err != nil {
 		log.Error("failed to create new l2 relayer", "config file", cfgFile, "error", err)
 		return err

bridge/cmd/msg_relayer/app/app.go

@@ -7,6 +7,7 @@ import (
 	"os/signal"
 	"time"
 
+	"github.com/prometheus/client_golang/prometheus"
 	"github.com/scroll-tech/go-ethereum/log"
 	"github.com/urfave/cli/v2"
 
@@ -59,10 +60,10 @@ func action(ctx *cli.Context) error {
 		}
 	}()
 
-	// Start metrics server.
-	metrics.Serve(subCtx, ctx)
+	registry := prometheus.DefaultRegisterer
+	metrics.Server(ctx, registry.(*prometheus.Registry))
 
-	l1relayer, err := relayer.NewLayer1Relayer(ctx.Context, db, cfg.L1Config.RelayerConfig)
+	l1relayer, err := relayer.NewLayer1Relayer(ctx.Context, db, cfg.L1Config.RelayerConfig, registry)
 	if err != nil {
 		log.Error("failed to create new l1 relayer", "config file", cfgFile, "error", err)
 		return err

bridge/cmd/rollup_relayer/app/app.go

@@ -7,6 +7,7 @@ import (
 	"os/signal"
 	"time"
 
+	"github.com/prometheus/client_golang/prometheus"
 	"github.com/scroll-tech/go-ethereum/ethclient"
 	"github.com/scroll-tech/go-ethereum/log"
 	"github.com/urfave/cli/v2"
@@ -62,8 +63,8 @@ func action(ctx *cli.Context) error {
 		}
 	}()
 
-	// Start metrics server.
-	metrics.Serve(subCtx, ctx)
+	registry := prometheus.DefaultRegisterer
+	metrics.Server(ctx, registry.(*prometheus.Registry))
 
 	// Init l2geth connection
 	l2client, err := ethclient.Dial(cfg.L2Config.Endpoint)
@@ -73,26 +74,26 @@ func action(ctx *cli.Context) error {
 	}
 
 	initGenesis := ctx.Bool(utils.ImportGenesisFlag.Name)
-	l2relayer, err := relayer.NewLayer2Relayer(ctx.Context, l2client, db, cfg.L2Config.RelayerConfig, initGenesis)
+	l2relayer, err := relayer.NewLayer2Relayer(ctx.Context, l2client, db, cfg.L2Config.RelayerConfig, initGenesis, registry)
 	if err != nil {
 		log.Error("failed to create l2 relayer", "config file", cfgFile, "error", err)
 		return err
 	}
 
-	chunkProposer := watcher.NewChunkProposer(subCtx, cfg.L2Config.ChunkProposerConfig, db)
+	chunkProposer := watcher.NewChunkProposer(subCtx, cfg.L2Config.ChunkProposerConfig, db, registry)
 	if err != nil {
 		log.Error("failed to create chunkProposer", "config file", cfgFile, "error", err)
 		return err
 	}
 
-	batchProposer := watcher.NewBatchProposer(subCtx, cfg.L2Config.BatchProposerConfig, db)
+	batchProposer := watcher.NewBatchProposer(subCtx, cfg.L2Config.BatchProposerConfig, db, registry)
 	if err != nil {
 		log.Error("failed to create batchProposer", "config file", cfgFile, "error", err)
 		return err
 	}
 
 	l2watcher := watcher.NewL2WatcherClient(subCtx, l2client, cfg.L2Config.Confirmations, cfg.L2Config.L2MessengerAddress,
-		cfg.L2Config.L2MessageQueueAddress, cfg.L2Config.WithdrawTrieRootSlot, db)
+		cfg.L2Config.L2MessageQueueAddress, cfg.L2Config.WithdrawTrieRootSlot, db, registry)
 
 	// Watcher loop to fetch missing blocks
 	go utils.LoopWithContext(subCtx, 2*time.Second, func(ctx context.Context) {
@@ -106,11 +107,11 @@ func action(ctx *cli.Context) error {
 
 	go utils.Loop(subCtx, 2*time.Second, chunkProposer.TryProposeChunk)
 
-	go utils.Loop(subCtx, 2*time.Second, batchProposer.TryProposeBatch)
+	go utils.Loop(subCtx, 10*time.Second, batchProposer.TryProposeBatch)
 
 	go utils.Loop(subCtx, 2*time.Second, l2relayer.ProcessPendingBatches)
 
-	go utils.Loop(subCtx, 60*time.Second, l2relayer.ProcessCommittedBatches)
+	go utils.Loop(subCtx, 15*time.Second, l2relayer.ProcessCommittedBatches)
 
 	// Finish start all rollup relayer functions.
 	log.Info("Start rollup-relayer successfully")

bridge/conf/config.json

@@ -64,11 +64,9 @@
       "finalize_sender_private_key": "1515151515151515151515151515151515151515151515151515151515151515"
     },
     "chunk_proposer_config": {
-      "max_tx_gas_per_chunk": 1123456,
-      "max_l2_tx_num_per_chunk": 1123,
+      "max_tx_num_per_chunk": 1123,
       "max_l1_commit_gas_per_chunk": 11234567,
       "max_l1_commit_calldata_size_per_chunk": 112345,
-      "min_l1_commit_calldata_size_per_chunk": 11234,
       "chunk_timeout_sec": 300,
       "max_row_consumption_per_chunk": 1048319,
       "gas_cost_increase_multiplier": 1.2
@@ -77,7 +75,6 @@
       "max_chunk_num_per_batch": 112,
       "max_l1_commit_gas_per_batch": 11234567,
       "max_l1_commit_calldata_size_per_batch": 112345,
-      "min_chunk_num_per_batch": 11,
       "batch_timeout_sec": 300,
       "gas_cost_increase_multiplier": 1.2
     }

bridge/go.mod

@@ -5,6 +5,7 @@ go 1.19
 require (
 	github.com/agiledragon/gomonkey/v2 v2.9.0
 	github.com/orcaman/concurrent-map/v2 v2.0.1
+	github.com/prometheus/client_golang v1.14.0
 	github.com/scroll-tech/go-ethereum v1.10.14-0.20230812030736-25fe3ba69a28
 	github.com/smartystreets/goconvey v1.8.0
 	github.com/stretchr/testify v1.8.3
@@ -13,6 +14,7 @@ require (
 )
 
 require (
+	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/btcsuite/btcd v0.20.1-beta // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
@@ -20,6 +22,7 @@ require (
 	github.com/deckarep/golang-set v1.8.0 // indirect
 	github.com/go-ole/go-ole v1.2.6 // indirect
 	github.com/go-stack/stack v1.8.1 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/golang/snappy v0.0.5-0.20220116011046-fa5810519dcb // indirect
 	github.com/google/uuid v1.3.0 // indirect
 	github.com/gopherjs/gopherjs v1.17.2 // indirect
@@ -35,8 +38,12 @@ require (
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.19 // indirect
 	github.com/mattn/go-runewidth v0.0.14 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/prometheus/client_model v0.3.0 // indirect
+	github.com/prometheus/common v0.39.0 // indirect
+	github.com/prometheus/procfs v0.9.0 // indirect
 	github.com/rivo/uniseg v0.4.4 // indirect
 	github.com/rjeczalik/notify v0.9.1 // indirect
 	github.com/rogpeppe/go-internal v1.10.0 // indirect
@@ -54,7 +61,7 @@ require (
 	golang.org/x/sync v0.3.0 // indirect
 	golang.org/x/sys v0.11.0 // indirect
 	golang.org/x/time v0.3.0 // indirect
-	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
+	google.golang.org/protobuf v1.31.0 // indirect
 	gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

bridge/go.sum

@@ -2,6 +2,8 @@ github.com/VictoriaMetrics/fastcache v1.6.0 h1:C/3Oi3EiBCqufydp1neRZkqcwmEiuRT9c
 github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
 github.com/agiledragon/gomonkey/v2 v2.9.0 h1:PDiKKybR596O6FHW+RVSG0Z7uGCBNbmbUXh3uCNQ7Hc=
 github.com/agiledragon/gomonkey/v2 v2.9.0/go.mod h1:ap1AmDzcVOAz1YpeJ3TCzIgstoaWLA6jbbgxfB4w2iY=
+github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
+github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/btcsuite/btcd v0.20.1-beta h1:Ik4hyJqN8Jfyv3S4AGBOmyouMsYE3EdYODkMbQjwPGw=
 github.com/btcsuite/btcd v0.20.1-beta/go.mod h1:wVuoA8VJLEcwgqHBwHmzLRazpKxTv13Px/pDuV7OomQ=
 github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f/go.mod h1:TdznJufoqS23FtqVCzL0ZqgP5MqXbb4fg/WgDys70nA=
@@ -31,8 +33,14 @@ github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiU
 github.com/go-stack/stack v1.8.1 h1:ntEHSVwIt7PNXNpgPmVfMrNhLtgjlmnZha2kOpuRiDw=
 github.com/go-stack/stack v1.8.1/go.mod h1:dcoOX6HbPZSZptuspn9bctJ+N/CnF5gGygcUP3XYfe4=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/golang/protobuf v1.3.5/go.mod h1:6O5/vntMXwX2lRkT1hjjk0nAC1IDOTvTlVgjlRvqsdk=
+github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
+github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
+github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
 github.com/golang/snappy v0.0.5-0.20220116011046-fa5810519dcb h1:PBC98N2aIaM3XXiurYmW7fx4GZkL8feAMVq7nEjURHk=
 github.com/golang/snappy v0.0.5-0.20220116011046-fa5810519dcb/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
+github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
 github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
 github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
@@ -62,11 +70,8 @@ github.com/jrick/logrotate v1.0.0/go.mod h1:LNinyqDIJnpAur+b8yyulnQw/wDuN1+BYKlT
 github.com/jtolds/gls v4.20.0+incompatible h1:xdiiI2gbIgH/gLH7ADydsJ1uDOEzR8yvV7C0MuV77Wo=
 github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
 github.com/kkdai/bstream v0.0.0-20161212061736-f391b8402d23/go.mod h1:J+Gs4SYgM6CZQHDETBtE9HaSEkGmuNXF86RwHhHUvq4=
-github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
-github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
-github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/leanovate/gopter v0.2.9 h1:fQjYxZaynp97ozCzfOyOuAGOU4aU/z37zf/tOujFk7c=
@@ -77,6 +82,8 @@ github.com/mattn/go-isatty v0.0.19 h1:JITubQf0MOLdlGRuRq+jtsDlekdYPia9ZFsB8h/APP
 github.com/mattn/go-isatty v0.0.19/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/mattn/go-runewidth v0.0.14 h1:+xnbZSEeDbOIg5/mE6JF0w6n9duR1l3/WmbinWVwUuU=
 github.com/mattn/go-runewidth v0.0.14/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/matttproud/golang_protobuf_extensions v1.0.4 h1:mmDVorXM7PCGKw94cs5zkfA9PSy5pEvNWRP0ET0TIVo=
+github.com/matttproud/golang_protobuf_extensions v1.0.4/go.mod h1:BSXmuO+STAnVfrANrmjBb36TMTDstsz7MSK+HVaYKv4=
 github.com/mitchellh/mapstructure v1.5.0 h1:jeMsZIYE/09sWLaz43PL7Gy6RuMjD2eJVyuac5Z2hdY=
 github.com/mitchellh/mapstructure v1.5.0/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
 github.com/mitchellh/pointerstructure v1.2.0 h1:O+i9nHnXS3l/9Wu7r4NrEdwA2VFTicjUEN1uBnDo34A=
@@ -90,6 +97,14 @@ github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsK
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/prometheus/client_golang v1.14.0 h1:nJdhIvne2eSX/XRAFV9PcvFFRbrjbcTUj0VP62TMhnw=
+github.com/prometheus/client_golang v1.14.0/go.mod h1:8vpkKitgIVNcqrRBWh1C4TIUQgYNtG/XQE4E/Zae36Y=
+github.com/prometheus/client_model v0.3.0 h1:UBgGFHqYdG/TPFD1B1ogZywDqEkwp3fBMvqdiQ7Xew4=
+github.com/prometheus/client_model v0.3.0/go.mod h1:LDGWKZIo7rky3hgvBe+caln+Dr3dPggB5dvjtD7w9+w=
+github.com/prometheus/common v0.39.0 h1:oOyhkDq05hPZKItWVBkJ6g6AtGxi+fy7F4JvUV8uhsI=
+github.com/prometheus/common v0.39.0/go.mod h1:6XBZ7lYdLCbkAVhwRsWTZn+IN5AB9F/NXd5w0BbEX0Y=
+github.com/prometheus/procfs v0.9.0 h1:wzCHvIvM5SxWqYvwgVL7yJY8Lz3PKn49KQtpgMYJfhI=
+github.com/prometheus/procfs v0.9.0/go.mod h1:+pB4zwohETzFnmlpe6yd2lSc+0/46IYZRB/chUwxUZY=
 github.com/prometheus/tsdb v0.7.1 h1:YZcsG11NqnK4czYLrWd9mpEuAJIHVQLwdrleYfszMAA=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rivo/uniseg v0.4.4 h1:8TfxU8dW6PdqD27gjM8MVNuicgxIjxpm4K7x4jp8sis=
@@ -140,6 +155,7 @@ golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73r
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.3.0 h1:ftCYgMx6zT/asHUrPw8BLLscYtGznsLAnjq5RH9P66E=
 golang.org/x/sync v0.3.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
@@ -157,9 +173,13 @@ golang.org/x/text v0.12.0 h1:k+n5B8goJNdU7hSvEtMUz3d1Q6D/XW4COJSJR6fN0mc=
 golang.org/x/time v0.3.0 h1:rg5rLMjNzMS1RkNLzCG38eapWhnYLFYXDXj2gOlr8j4=
 golang.org/x/time v0.3.0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
+google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
+google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
-gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce h1:+JknDZhAj8YMt7GC73Ei8pv4MzjDUNPHgQWJdtMAaDU=
 gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce/go.mod h1:5AcXVHNjg+BDxry382+8OKon8SEWiKktQR07RKPsv1c=

bridge/internal/config/config.go

@@ -2,6 +2,7 @@ package config
 
 import (
 	"encoding/json"
+	"fmt"
 	"os"
 	"path/filepath"
 
@@ -15,6 +16,13 @@ type Config struct {
 	DBConfig *database.Config `json:"db_config"`
 }
 
+func (c *Config) validate() error {
+	if maxChunkPerBatch := c.L2Config.BatchProposerConfig.MaxChunkNumPerBatch; maxChunkPerBatch <= 0 {
+		return fmt.Errorf("Invalid max_chunk_num_per_batch configuration: %v", maxChunkPerBatch)
+	}
+	return nil
+}
+
 // NewConfig returns a new instance of Config.
 func NewConfig(file string) (*Config, error) {
 	buf, err := os.ReadFile(filepath.Clean(file))
@@ -28,5 +36,8 @@ func NewConfig(file string) (*Config, error) {
 		return nil, err
 	}
 
+	if err := cfg.validate(); err != nil {
+		return nil, err
+	}
 	return cfg, nil
 }

bridge/internal/config/l2.go

@@ -28,11 +28,9 @@ type L2Config struct {
 
 // ChunkProposerConfig loads chunk_proposer configuration items.
 type ChunkProposerConfig struct {
-	MaxTxGasPerChunk                uint64  `json:"max_tx_gas_per_chunk"`
-	MaxL2TxNumPerChunk              uint64  `json:"max_l2_tx_num_per_chunk"`
+	MaxTxNumPerChunk                uint64  `json:"max_tx_num_per_chunk"`
 	MaxL1CommitGasPerChunk          uint64  `json:"max_l1_commit_gas_per_chunk"`
 	MaxL1CommitCalldataSizePerChunk uint64  `json:"max_l1_commit_calldata_size_per_chunk"`
-	MinL1CommitCalldataSizePerChunk uint64  `json:"min_l1_commit_calldata_size_per_chunk"`
 	ChunkTimeoutSec                 uint64  `json:"chunk_timeout_sec"`
 	MaxRowConsumptionPerChunk       uint64  `json:"max_row_consumption_per_chunk"`
 	GasCostIncreaseMultiplier       float64 `json:"gas_cost_increase_multiplier"`
@@ -43,7 +41,6 @@ type BatchProposerConfig struct {
 	MaxChunkNumPerBatch             uint64  `json:"max_chunk_num_per_batch"`
 	MaxL1CommitGasPerBatch          uint64  `json:"max_l1_commit_gas_per_batch"`
 	MaxL1CommitCalldataSizePerBatch uint32  `json:"max_l1_commit_calldata_size_per_batch"`
-	MinChunkNumPerBatch             uint64  `json:"min_chunk_num_per_batch"`
 	BatchTimeoutSec                 uint64  `json:"batch_timeout_sec"`
 	GasCostIncreaseMultiplier       float64 `json:"gas_cost_increase_multiplier"`
 }

bridge/internal/controller/relayer/l1_relayer.go

@@ -6,15 +6,13 @@ import (
 	"fmt"
 	"math/big"
 
-	// not sure if this will make problems when relay with l1geth
+	"github.com/prometheus/client_golang/prometheus"
 	"github.com/scroll-tech/go-ethereum/accounts/abi"
 	"github.com/scroll-tech/go-ethereum/common"
 	"github.com/scroll-tech/go-ethereum/crypto"
 	"github.com/scroll-tech/go-ethereum/log"
-	gethMetrics "github.com/scroll-tech/go-ethereum/metrics"
 	"gorm.io/gorm"
 
-	"scroll-tech/common/metrics"
 	"scroll-tech/common/types"
 
 	bridgeAbi "scroll-tech/bridge/abi"
@@ -23,11 +21,6 @@ import (
 	"scroll-tech/bridge/internal/orm"
 )
 
-var (
-	bridgeL1MsgsRelayedTotalCounter          = gethMetrics.NewRegisteredCounter("bridge/l1/msgs/relayed/total", metrics.ScrollRegistry)
-	bridgeL1MsgsRelayedConfirmedTotalCounter = gethMetrics.NewRegisteredCounter("bridge/l1/msgs/relayed/confirmed/total", metrics.ScrollRegistry)
-)
-
 // Layer1Relayer is responsible for
 //  1. fetch pending L1Message from db
 //  2. relay pending message to layer 2 node
@@ -54,17 +47,18 @@ type Layer1Relayer struct {
 
 	l1MessageOrm *orm.L1Message
 	l1BlockOrm   *orm.L1Block
+	metrics      *l1RelayerMetrics
 }
 
 // NewLayer1Relayer will return a new instance of Layer1RelayerClient
-func NewLayer1Relayer(ctx context.Context, db *gorm.DB, cfg *config.RelayerConfig) (*Layer1Relayer, error) {
-	messageSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.MessageSenderPrivateKey)
+func NewLayer1Relayer(ctx context.Context, db *gorm.DB, cfg *config.RelayerConfig, reg prometheus.Registerer) (*Layer1Relayer, error) {
+	messageSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.MessageSenderPrivateKey, "l1_relayer", "message_sender", reg)
 	if err != nil {
 		addr := crypto.PubkeyToAddress(cfg.MessageSenderPrivateKey.PublicKey)
 		return nil, fmt.Errorf("new message sender failed for address %s, err: %v", addr.Hex(), err)
 	}
 
-	gasOracleSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.GasOracleSenderPrivateKey)
+	gasOracleSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.GasOracleSenderPrivateKey, "l1_relayer", "gas_oracle_sender", reg)
 	if err != nil {
 		addr := crypto.PubkeyToAddress(cfg.GasOracleSenderPrivateKey.PublicKey)
 		return nil, fmt.Errorf("new gas oracle sender failed for address %s, err: %v", addr.Hex(), err)
@@ -86,6 +80,7 @@ func NewLayer1Relayer(ctx context.Context, db *gorm.DB, cfg *config.RelayerConfi
 	}
 
 	l1Relayer := &Layer1Relayer{
+		cfg:          cfg,
 		ctx:          ctx,
 		l1MessageOrm: orm.NewL1Message(db),
 		l1BlockOrm:   orm.NewL1Block(db),
@@ -100,10 +95,10 @@ func NewLayer1Relayer(ctx context.Context, db *gorm.DB, cfg *config.RelayerConfi
 
 		minGasPrice:  minGasPrice,
 		gasPriceDiff: gasPriceDiff,
-
-		cfg: cfg,
 	}
 
+	l1Relayer.metrics = initL1RelayerMetrics(reg)
+
 	go l1Relayer.handleConfirmLoop(ctx)
 	return l1Relayer, nil
 }
@@ -123,7 +118,9 @@ func (r *Layer1Relayer) ProcessSavedEvents() {
 
 	for _, msg := range msgs {
 		tmpMsg := msg
+		r.metrics.bridgeL1RelayedMsgsTotal.Inc()
 		if err = r.processSavedEvent(&tmpMsg); err != nil {
+			r.metrics.bridgeL1RelayedMsgsFailureTotal.Inc()
 			if !errors.Is(err, sender.ErrNoAvailableAccount) && !errors.Is(err, sender.ErrFullPending) {
 				log.Error("failed to process event", "msg.msgHash", msg.MsgHash, "err", err)
 			}
@@ -145,7 +142,6 @@ func (r *Layer1Relayer) processSavedEvent(msg *orm.L1Message) error {
 	if err != nil {
 		return err
 	}
-	bridgeL1MsgsRelayedTotalCounter.Inc(1)
 	log.Info("relayMessage to layer2", "msg hash", msg.MsgHash, "tx hash", hash)
 
 	err = r.l1MessageOrm.UpdateLayer1StatusAndLayer2Hash(r.ctx, msg.MsgHash, types.MsgSubmitted, hash.String())
@@ -157,6 +153,7 @@ func (r *Layer1Relayer) processSavedEvent(msg *orm.L1Message) error {
 
 // ProcessGasPriceOracle imports gas price to layer2
 func (r *Layer1Relayer) ProcessGasPriceOracle() {
+	r.metrics.bridgeL1RelayerGasPriceOraclerRunTotal.Inc()
 	latestBlockHeight, err := r.l1BlockOrm.GetLatestL1BlockHeight(r.ctx)
 	if err != nil {
 		log.Warn("Failed to fetch latest L1 block height from db", "err", err)
@@ -201,6 +198,7 @@ func (r *Layer1Relayer) ProcessGasPriceOracle() {
 				return
 			}
 			r.lastGasPrice = block.BaseFee
+			r.metrics.bridgeL1RelayerLastGasPrice.Set(float64(r.lastGasPrice))
 			log.Info("Update l1 base fee", "txHash", hash.String(), "baseFee", baseFee)
 		}
 	}
@@ -212,7 +210,7 @@ func (r *Layer1Relayer) handleConfirmLoop(ctx context.Context) {
 		case <-ctx.Done():
 			return
 		case cfm := <-r.messageSender.ConfirmChan():
-			bridgeL1MsgsRelayedConfirmedTotalCounter.Inc(1)
+			r.metrics.bridgeL1MsgsRelayedConfirmedTotal.Inc()
 			if !cfm.IsSuccessful {
 				err := r.l1MessageOrm.UpdateLayer1StatusAndLayer2Hash(r.ctx, cfm.ID, types.MsgRelayFailed, cfm.TxHash.String())
 				if err != nil {
@@ -228,6 +226,7 @@ func (r *Layer1Relayer) handleConfirmLoop(ctx context.Context) {
 				log.Info("transaction confirmed in layer2", "confirmation", cfm)
 			}
 		case cfm := <-r.gasOracleSender.ConfirmChan():
+			r.metrics.bridgeL1GasOraclerConfirmedTotal.Inc()
 			if !cfm.IsSuccessful {
 				// @discuss: maybe make it pending again?
 				err := r.l1BlockOrm.UpdateL1GasOracleStatusAndOracleTxHash(r.ctx, cfm.ID, types.GasOracleFailed, cfm.TxHash.String())

bridge/internal/controller/relayer/l1_relayer_metrics.go

@@ -0,0 +1,54 @@
+package relayer
+
+import (
+	"sync"
+
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promauto"
+)
+
+type l1RelayerMetrics struct {
+	bridgeL1RelayedMsgsTotal               prometheus.Counter
+	bridgeL1RelayedMsgsFailureTotal        prometheus.Counter
+	bridgeL1RelayerGasPriceOraclerRunTotal prometheus.Counter
+	bridgeL1RelayerLastGasPrice            prometheus.Gauge
+	bridgeL1MsgsRelayedConfirmedTotal      prometheus.Counter
+	bridgeL1GasOraclerConfirmedTotal       prometheus.Counter
+}
+
+var (
+	initL1RelayerMetricOnce sync.Once
+	l1RelayerMetric         *l1RelayerMetrics
+)
+
+func initL1RelayerMetrics(reg prometheus.Registerer) *l1RelayerMetrics {
+	initL1RelayerMetricOnce.Do(func() {
+		l1RelayerMetric = &l1RelayerMetrics{
+			bridgeL1RelayedMsgsTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+				Name: "bridge_layer1_msg_relayed_total",
+				Help: "The total number of the l1 relayed message.",
+			}),
+			bridgeL1RelayedMsgsFailureTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+				Name: "bridge_layer1_msg_relayed_failure_total",
+				Help: "The total number of the l1 relayed failure message.",
+			}),
+			bridgeL1MsgsRelayedConfirmedTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+				Name: "bridge_layer1_relayed_confirmed_total",
+				Help: "The total number of layer1 relayed confirmed",
+			}),
+			bridgeL1RelayerGasPriceOraclerRunTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+				Name: "bridge_layer1_gas_price_oracler_total",
+				Help: "The total number of layer1 gas price oracler run total",
+			}),
+			bridgeL1RelayerLastGasPrice: promauto.With(reg).NewGauge(prometheus.GaugeOpts{
+				Name: "bridge_layer1_gas_price_latest_gas_price",
+				Help: "The latest gas price of bridge relayer l1",
+			}),
+			bridgeL1GasOraclerConfirmedTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+				Name: "bridge_layer1_gas_oracler_confirmed_total",
+				Help: "The total number of layer1 relayed confirmed",
+			}),
+		}
+	})
+	return l1RelayerMetric
+}

bridge/internal/controller/relayer/l1_relayer_test.go

@@ -62,7 +62,7 @@ func setupL1RelayerDB(t *testing.T) *gorm.DB {
 func testCreateNewL1Relayer(t *testing.T) {
 	db := setupL1RelayerDB(t)
 	defer database.CloseDB(db)
-	relayer, err := NewLayer1Relayer(context.Background(), db, cfg.L2Config.RelayerConfig)
+	relayer, err := NewLayer1Relayer(context.Background(), db, cfg.L2Config.RelayerConfig, nil)
 	assert.NoError(t, err)
 	assert.NotNil(t, relayer)
 }
@@ -72,7 +72,7 @@ func testL1RelayerProcessSaveEvents(t *testing.T) {
 	defer database.CloseDB(db)
 	l1MessageOrm := orm.NewL1Message(db)
 	l1Cfg := cfg.L1Config
-	relayer, err := NewLayer1Relayer(context.Background(), db, l1Cfg.RelayerConfig)
+	relayer, err := NewLayer1Relayer(context.Background(), db, l1Cfg.RelayerConfig, nil)
 	assert.NoError(t, err)
 	assert.NotNil(t, relayer)
 	assert.NoError(t, l1MessageOrm.SaveL1Messages(context.Background(), templateL1Message))
@@ -99,7 +99,7 @@ func testL1RelayerMsgConfirm(t *testing.T) {
 	l1Cfg := cfg.L1Config
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
-	l1Relayer, err := NewLayer1Relayer(ctx, db, l1Cfg.RelayerConfig)
+	l1Relayer, err := NewLayer1Relayer(ctx, db, l1Cfg.RelayerConfig, nil)
 	assert.NoError(t, err)
 
 	// Simulate message confirmations.
@@ -138,7 +138,7 @@ func testL1RelayerGasOracleConfirm(t *testing.T) {
 	l1Cfg := cfg.L1Config
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
-	l1Relayer, err := NewLayer1Relayer(ctx, db, l1Cfg.RelayerConfig)
+	l1Relayer, err := NewLayer1Relayer(ctx, db, l1Cfg.RelayerConfig, nil)
 	assert.NoError(t, err)
 
 	// Simulate message confirmations.
@@ -168,7 +168,7 @@ func testL1RelayerProcessGasPriceOracle(t *testing.T) {
 	l1Cfg := cfg.L1Config
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
-	l1Relayer, err := NewLayer1Relayer(ctx, db, l1Cfg.RelayerConfig)
+	l1Relayer, err := NewLayer1Relayer(ctx, db, l1Cfg.RelayerConfig, nil)
 	assert.NoError(t, err)
 	assert.NotNil(t, l1Relayer)
 

bridge/internal/controller/relayer/l2_relayer.go

@@ -8,16 +8,15 @@ import (
 	"sync"
 	"time"
 
+	"github.com/prometheus/client_golang/prometheus"
 	"github.com/scroll-tech/go-ethereum/accounts/abi"
 	"github.com/scroll-tech/go-ethereum/common"
 	gethTypes "github.com/scroll-tech/go-ethereum/core/types"
 	"github.com/scroll-tech/go-ethereum/crypto"
 	"github.com/scroll-tech/go-ethereum/ethclient"
 	"github.com/scroll-tech/go-ethereum/log"
-	gethMetrics "github.com/scroll-tech/go-ethereum/metrics"
 	"gorm.io/gorm"
 
-	"scroll-tech/common/metrics"
 	"scroll-tech/common/types"
 
 	bridgeAbi "scroll-tech/bridge/abi"
@@ -26,13 +25,6 @@ import (
 	"scroll-tech/bridge/internal/orm"
 )
 
-var (
-	bridgeL2BatchesFinalizedTotalCounter          = gethMetrics.NewRegisteredCounter("bridge/l2/batches/finalized/total", metrics.ScrollRegistry)
-	bridgeL2BatchesCommittedTotalCounter          = gethMetrics.NewRegisteredCounter("bridge/l2/batches/committed/total", metrics.ScrollRegistry)
-	bridgeL2BatchesFinalizedConfirmedTotalCounter = gethMetrics.NewRegisteredCounter("bridge/l2/batches/finalized/confirmed/total", metrics.ScrollRegistry)
-	bridgeL2BatchesCommittedConfirmedTotalCounter = gethMetrics.NewRegisteredCounter("bridge/l2/batches/committed/confirmed/total", metrics.ScrollRegistry)
-)
-
 // Layer2Relayer is responsible for
 //  1. Committing and finalizing L2 blocks on L1
 //  2. Relaying messages from L2 to L1
@@ -78,29 +70,30 @@ type Layer2Relayer struct {
 	// A list of processing batch finalization.
 	// key(string): confirmation ID, value(string): batch hash.
 	processingFinalization sync.Map
+
+	metrics *l2RelayerMetrics
 }
 
 // NewLayer2Relayer will return a new instance of Layer2RelayerClient
-func NewLayer2Relayer(ctx context.Context, l2Client *ethclient.Client, db *gorm.DB, cfg *config.RelayerConfig, initGenesis bool) (*Layer2Relayer, error) {
-	messageSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.MessageSenderPrivateKey)
+func NewLayer2Relayer(ctx context.Context, l2Client *ethclient.Client, db *gorm.DB, cfg *config.RelayerConfig, initGenesis bool, reg prometheus.Registerer) (*Layer2Relayer, error) {
+	messageSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.MessageSenderPrivateKey, "l2_relayer", "message_sender", reg)
 	if err != nil {
 		addr := crypto.PubkeyToAddress(cfg.MessageSenderPrivateKey.PublicKey)
 		return nil, fmt.Errorf("new message sender failed for address %s, err: %w", addr.Hex(), err)
 	}
 
-	commitSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.CommitSenderPrivateKey)
+	commitSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.CommitSenderPrivateKey, "l2_relayer", "commit_sender", reg)
 	if err != nil {
 		addr := crypto.PubkeyToAddress(cfg.CommitSenderPrivateKey.PublicKey)
 		return nil, fmt.Errorf("new commit sender failed for address %s, err: %w", addr.Hex(), err)
 	}
-
-	finalizeSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.FinalizeSenderPrivateKey)
+	finalizeSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.FinalizeSenderPrivateKey, "l2_relayer", "finalize_sender", reg)
 	if err != nil {
 		addr := crypto.PubkeyToAddress(cfg.FinalizeSenderPrivateKey.PublicKey)
 		return nil, fmt.Errorf("new finalize sender failed for address %s, err: %w", addr.Hex(), err)
 	}
 
-	gasOracleSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.GasOracleSenderPrivateKey)
+	gasOracleSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.GasOracleSenderPrivateKey, "l2_relayer", "gas_oracle_sender", reg)
 	if err != nil {
 		addr := crypto.PubkeyToAddress(cfg.GasOracleSenderPrivateKey.PublicKey)
 		return nil, fmt.Errorf("new gas oracle sender failed for address %s, err: %w", addr.Hex(), err)
@@ -158,6 +151,7 @@ func NewLayer2Relayer(ctx context.Context, l2Client *ethclient.Client, db *gorm.
 			return nil, fmt.Errorf("failed to initialize and commit genesis batch, err: %v", err)
 		}
 	}
+	layer2Relayer.metrics = initL2RelayerMetrics(reg)
 
 	go layer2Relayer.handleConfirmLoop(ctx)
 	return layer2Relayer, nil
@@ -198,8 +192,14 @@ func (r *Layer2Relayer) initializeGenesis() error {
 			return fmt.Errorf("failed to update genesis chunk proving status: %v", err)
 		}
 
+		batchMeta := &types.BatchMeta{
+			StartChunkIndex: 0,
+			StartChunkHash:  dbChunk.Hash,
+			EndChunkIndex:   0,
+			EndChunkHash:    dbChunk.Hash,
+		}
 		var batch *orm.Batch
-		batch, err = r.batchOrm.InsertBatch(r.ctx, 0, 0, dbChunk.Hash, dbChunk.Hash, []*types.Chunk{chunk}, dbTX)
+		batch, err = r.batchOrm.InsertBatch(r.ctx, []*types.Chunk{chunk}, batchMeta, dbTX)
 		if err != nil {
 			return fmt.Errorf("failed to insert batch: %v", err)
 		}
@@ -275,6 +275,7 @@ func (r *Layer2Relayer) commitGenesisBatch(batchHash string, batchHeader []byte,
 
 // ProcessGasPriceOracle imports gas price to layer1
 func (r *Layer2Relayer) ProcessGasPriceOracle() {
+	r.metrics.bridgeL2RelayerGasPriceOraclerRunTotal.Inc()
 	batch, err := r.batchOrm.GetLatestBatch(r.ctx)
 	if batch == nil || err != nil {
 		log.Error("Failed to GetLatestBatch", "batch", batch, "err", err)
@@ -312,6 +313,7 @@ func (r *Layer2Relayer) ProcessGasPriceOracle() {
 				return
 			}
 			r.lastGasPrice = suggestGasPriceUint64
+			r.metrics.bridgeL2RelayerLastGasPrice.Set(float64(r.lastGasPrice))
 			log.Info("Update l2 gas price", "txHash", hash.String(), "GasPrice", suggestGasPrice)
 		}
 	}
@@ -320,12 +322,13 @@ func (r *Layer2Relayer) ProcessGasPriceOracle() {
 // ProcessPendingBatches processes the pending batches by sending commitBatch transactions to layer 1.
 func (r *Layer2Relayer) ProcessPendingBatches() {
 	// get pending batches from database in ascending order by their index.
-	pendingBatches, err := r.batchOrm.GetPendingBatches(r.ctx, 10)
+	pendingBatches, err := r.batchOrm.GetPendingBatches(r.ctx, 1)
 	if err != nil {
 		log.Error("Failed to fetch pending L2 batches", "err", err)
 		return
 	}
 	for _, batch := range pendingBatches {
+		r.metrics.bridgeL2RelayerProcessPendingBatchTotal.Inc()
 		// get current header and parent header.
 		currentBatchHeader, err := types.DecodeBatchHeader(batch.BatchHeader)
 		if err != nil {
@@ -385,6 +388,13 @@ func (r *Layer2Relayer) ProcessPendingBatches() {
 		txHash, err := r.commitSender.SendTransaction(txID, &r.cfg.RollupContractAddress, big.NewInt(0), calldata, 0)
 		if err != nil {
 			log.Error(
+				"Failed to send commitBatch tx to layer1",
+				"index", batch.Index,
+				"hash", batch.Hash,
+				"RollupContractAddress", r.cfg.RollupContractAddress,
+				"err", err,
+			)
+			log.Debug(
 				"Failed to send commitBatch tx to layer1",
 				"index", batch.Index,
 				"hash", batch.Hash,
@@ -400,7 +410,7 @@ func (r *Layer2Relayer) ProcessPendingBatches() {
 			log.Error("UpdateCommitTxHashAndRollupStatus failed", "hash", batch.Hash, "index", batch.Index, "err", err)
 			return
 		}
-		bridgeL2BatchesCommittedTotalCounter.Inc(1)
+		r.metrics.bridgeL2RelayerProcessPendingBatchSuccessTotal.Inc()
 		r.processingCommitment.Store(txID, batch.Hash)
 		log.Info("Sent the commitBatch tx to layer1", "batch index", batch.Index, "batch hash", batch.Hash, "tx hash", txHash.Hex())
 	}
@@ -424,6 +434,8 @@ func (r *Layer2Relayer) ProcessCommittedBatches() {
 		return
 	}
 
+	r.metrics.bridgeL2RelayerProcessCommittedBatchesTotal.Inc()
+
 	batch := batches[0]
 	hash := batch.Hash
 	status := types.ProvingStatus(batch.ProvingStatus)
@@ -431,12 +443,9 @@ func (r *Layer2Relayer) ProcessCommittedBatches() {
 	case types.ProvingTaskUnassigned, types.ProvingTaskAssigned:
 		// The proof for this block is not ready yet.
 		return
-	case types.ProvingTaskProved:
-		// It's an intermediate state. The prover manager received the proof but has not verified
-		// the proof yet. We don't roll up the proof until it's verified.
-		return
 	case types.ProvingTaskVerified:
 		log.Info("Start to roll up zk proof", "hash", hash)
+		r.metrics.bridgeL2RelayerProcessCommittedBatchesFinalizedTotal.Inc()
 
 		var parentBatchStateRoot string
 		if batch.Index > 0 {
@@ -485,6 +494,14 @@ func (r *Layer2Relayer) ProcessCommittedBatches() {
 				// the client does not see the 1st tx's updates at this point.
 				// TODO: add more fine-grained error handling
 				log.Error(
+					"finalizeBatchWithProof in layer1 failed",
+					"index", batch.Index,
+					"hash", batch.Hash,
+					"RollupContractAddress", r.cfg.RollupContractAddress,
+					"err", err,
+				)
+
+				log.Debug(
 					"finalizeBatchWithProof in layer1 failed",
 					"index", batch.Index,
 					"hash", batch.Hash,
@@ -495,7 +512,6 @@ func (r *Layer2Relayer) ProcessCommittedBatches() {
 			}
 			return
 		}
-		bridgeL2BatchesFinalizedTotalCounter.Inc(1)
 		log.Info("finalizeBatchWithProof in layer1", "index", batch.Index, "batch hash", batch.Hash, "tx hash", hash)
 
 		// record and sync with db, @todo handle db error
@@ -506,6 +522,7 @@ func (r *Layer2Relayer) ProcessCommittedBatches() {
 				"tx hash", finalizeTxHash.String(), "err", err)
 		}
 		r.processingFinalization.Store(txID, hash)
+		r.metrics.bridgeL2RelayerProcessCommittedBatchesFinalizedSuccessTotal.Inc()
 
 	case types.ProvingTaskFailed:
 		// We were unable to prove this batch. There are two possibilities:
@@ -550,7 +567,7 @@ func (r *Layer2Relayer) handleConfirmation(confirmation *sender.Confirmation) {
 				"batch hash", batchHash.(string),
 				"tx hash", confirmation.TxHash.String(), "err", err)
 		}
-		bridgeL2BatchesCommittedConfirmedTotalCounter.Inc(1)
+		r.metrics.bridgeL2BatchesCommittedConfirmedTotal.Inc()
 		r.processingCommitment.Delete(confirmation.ID)
 	}
 
@@ -572,7 +589,7 @@ func (r *Layer2Relayer) handleConfirmation(confirmation *sender.Confirmation) {
 				"batch hash", batchHash.(string),
 				"tx hash", confirmation.TxHash.String(), "err", err)
 		}
-		bridgeL2BatchesFinalizedConfirmedTotalCounter.Inc(1)
+		r.metrics.bridgeL2BatchesFinalizedConfirmedTotal.Inc()
 		r.processingFinalization.Delete(confirmation.ID)
 	}
 	log.Info("transaction confirmed in layer1", "type", transactionType, "confirmation", confirmation)
@@ -590,6 +607,7 @@ func (r *Layer2Relayer) handleConfirmLoop(ctx context.Context) {
 		case confirmation := <-r.finalizeSender.ConfirmChan():
 			r.handleConfirmation(confirmation)
 		case cfm := <-r.gasOracleSender.ConfirmChan():
+			r.metrics.bridgeL2BatchesGasOraclerConfirmedTotal.Inc()
 			if !cfm.IsSuccessful {
 				// @discuss: maybe make it pending again?
 				err := r.batchOrm.UpdateL2GasOracleStatusAndOracleTxHash(r.ctx, cfm.ID, types.GasOracleFailed, cfm.TxHash.String())

bridge/internal/controller/relayer/l2_relayer_metrics.go

@@ -0,0 +1,74 @@
+package relayer
+
+import (
+	"sync"
+
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promauto"
+)
+
+type l2RelayerMetrics struct {
+	bridgeL2RelayerProcessPendingBatchTotal                     prometheus.Counter
+	bridgeL2RelayerProcessPendingBatchSuccessTotal              prometheus.Counter
+	bridgeL2RelayerGasPriceOraclerRunTotal                      prometheus.Counter
+	bridgeL2RelayerLastGasPrice                                 prometheus.Gauge
+	bridgeL2RelayerProcessCommittedBatchesTotal                 prometheus.Counter
+	bridgeL2RelayerProcessCommittedBatchesFinalizedTotal        prometheus.Counter
+	bridgeL2RelayerProcessCommittedBatchesFinalizedSuccessTotal prometheus.Counter
+	bridgeL2BatchesCommittedConfirmedTotal                      prometheus.Counter
+	bridgeL2BatchesFinalizedConfirmedTotal                      prometheus.Counter
+	bridgeL2BatchesGasOraclerConfirmedTotal                     prometheus.Counter
+}
+
+var (
+	initL2RelayerMetricOnce sync.Once
+	l2RelayerMetric         *l2RelayerMetrics
+)
+
+func initL2RelayerMetrics(reg prometheus.Registerer) *l2RelayerMetrics {
+	initL2RelayerMetricOnce.Do(func() {
+		l2RelayerMetric = &l2RelayerMetrics{
+			bridgeL2RelayerProcessPendingBatchTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+				Name: "bridge_layer2_process_pending_batch_total",
+				Help: "The total number of layer2 process pending batch",
+			}),
+			bridgeL2RelayerProcessPendingBatchSuccessTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+				Name: "bridge_layer2_process_pending_batch_success_total",
+				Help: "The total number of layer2 process pending success batch",
+			}),
+			bridgeL2RelayerGasPriceOraclerRunTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+				Name: "bridge_layer2_gas_price_oracler_total",
+				Help: "The total number of layer2 gas price oracler run total",
+			}),
+			bridgeL2RelayerLastGasPrice: promauto.With(reg).NewGauge(prometheus.GaugeOpts{
+				Name: "bridge_layer2_gas_price_latest_gas_price",
+				Help: "The latest gas price of bridge relayer l2",
+			}),
+			bridgeL2RelayerProcessCommittedBatchesTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+				Name: "bridge_layer2_process_committed_batches_total",
+				Help: "The total number of layer2 process committed batches run total",
+			}),
+			bridgeL2RelayerProcessCommittedBatchesFinalizedTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+				Name: "bridge_layer2_process_committed_batches_finalized_total",
+				Help: "The total number of layer2 process committed batches finalized total",
+			}),
+			bridgeL2RelayerProcessCommittedBatchesFinalizedSuccessTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+				Name: "bridge_layer2_process_committed_batches_finalized_success_total",
+				Help: "The total number of layer2 process committed batches finalized success total",
+			}),
+			bridgeL2BatchesCommittedConfirmedTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+				Name: "bridge_layer2_process_committed_batches_confirmed_total",
+				Help: "The total number of layer2 process committed batches confirmed total",
+			}),
+			bridgeL2BatchesFinalizedConfirmedTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+				Name: "bridge_layer2_process_finalized_batches_confirmed_total",
+				Help: "The total number of layer2 process finalized batches confirmed total",
+			}),
+			bridgeL2BatchesGasOraclerConfirmedTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+				Name: "bridge_layer2_process_gras_oracler_confirmed_total",
+				Help: "The total number of layer2 process finalized batches confirmed total",
+			}),
+		}
+	})
+	return l2RelayerMetric
+}

bridge/internal/controller/relayer/l2_relayer_test.go

@@ -35,7 +35,7 @@ func setupL2RelayerDB(t *testing.T) *gorm.DB {
 func testCreateNewRelayer(t *testing.T) {
 	db := setupL2RelayerDB(t)
 	defer database.CloseDB(db)
-	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, cfg.L2Config.RelayerConfig, false)
+	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, cfg.L2Config.RelayerConfig, false, nil)
 	assert.NoError(t, err)
 	assert.NotNil(t, relayer)
 }
@@ -45,7 +45,7 @@ func testL2RelayerProcessPendingBatches(t *testing.T) {
 	defer database.CloseDB(db)
 
 	l2Cfg := cfg.L2Config
-	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, l2Cfg.RelayerConfig, false)
+	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, l2Cfg.RelayerConfig, false, nil)
 	assert.NoError(t, err)
 
 	l2BlockOrm := orm.NewL2Block(db)
@@ -56,8 +56,14 @@ func testL2RelayerProcessPendingBatches(t *testing.T) {
 	assert.NoError(t, err)
 	dbChunk2, err := chunkOrm.InsertChunk(context.Background(), chunk2)
 	assert.NoError(t, err)
+	batchMeta := &types.BatchMeta{
+		StartChunkIndex: 0,
+		StartChunkHash:  dbChunk1.Hash,
+		EndChunkIndex:   1,
+		EndChunkHash:    dbChunk2.Hash,
+	}
 	batchOrm := orm.NewBatch(db)
-	batch, err := batchOrm.InsertBatch(context.Background(), 0, 1, dbChunk1.Hash, dbChunk2.Hash, []*types.Chunk{chunk1, chunk2})
+	batch, err := batchOrm.InsertBatch(context.Background(), []*types.Chunk{chunk1, chunk2}, batchMeta)
 	assert.NoError(t, err)
 
 	relayer.ProcessPendingBatches()
@@ -73,10 +79,16 @@ func testL2RelayerProcessCommittedBatches(t *testing.T) {
 	defer database.CloseDB(db)
 
 	l2Cfg := cfg.L2Config
-	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, l2Cfg.RelayerConfig, false)
+	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, l2Cfg.RelayerConfig, false, nil)
 	assert.NoError(t, err)
+	batchMeta := &types.BatchMeta{
+		StartChunkIndex: 0,
+		StartChunkHash:  chunkHash1.Hex(),
+		EndChunkIndex:   1,
+		EndChunkHash:    chunkHash2.Hex(),
+	}
 	batchOrm := orm.NewBatch(db)
-	batch, err := batchOrm.InsertBatch(context.Background(), 0, 1, chunkHash1.Hex(), chunkHash2.Hex(), []*types.Chunk{chunk1, chunk2})
+	batch, err := batchOrm.InsertBatch(context.Background(), []*types.Chunk{chunk1, chunk2}, batchMeta)
 	assert.NoError(t, err)
 
 	err = batchOrm.UpdateRollupStatus(context.Background(), batch.Hash, types.RollupCommitted)
@@ -114,7 +126,7 @@ func testL2RelayerCommitConfirm(t *testing.T) {
 	l2Cfg := cfg.L2Config
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
-	l2Relayer, err := NewLayer2Relayer(ctx, l2Cli, db, l2Cfg.RelayerConfig, false)
+	l2Relayer, err := NewLayer2Relayer(ctx, l2Cli, db, l2Cfg.RelayerConfig, false, nil)
 	assert.NoError(t, err)
 
 	// Simulate message confirmations.
@@ -124,7 +136,13 @@ func testL2RelayerCommitConfirm(t *testing.T) {
 	batchOrm := orm.NewBatch(db)
 	batchHashes := make([]string, len(processingKeys))
 	for i := range batchHashes {
-		batch, err := batchOrm.InsertBatch(context.Background(), 0, 1, chunkHash1.Hex(), chunkHash2.Hex(), []*types.Chunk{chunk1, chunk2})
+		batchMeta := &types.BatchMeta{
+			StartChunkIndex: 0,
+			StartChunkHash:  chunkHash1.Hex(),
+			EndChunkIndex:   1,
+			EndChunkHash:    chunkHash2.Hex(),
+		}
+		batch, err := batchOrm.InsertBatch(context.Background(), []*types.Chunk{chunk1, chunk2}, batchMeta)
 		assert.NoError(t, err)
 		batchHashes[i] = batch.Hash
 	}
@@ -164,7 +182,7 @@ func testL2RelayerFinalizeConfirm(t *testing.T) {
 	l2Cfg := cfg.L2Config
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
-	l2Relayer, err := NewLayer2Relayer(ctx, l2Cli, db, l2Cfg.RelayerConfig, false)
+	l2Relayer, err := NewLayer2Relayer(ctx, l2Cli, db, l2Cfg.RelayerConfig, false, nil)
 	assert.NoError(t, err)
 
 	// Simulate message confirmations.
@@ -174,7 +192,13 @@ func testL2RelayerFinalizeConfirm(t *testing.T) {
 	batchOrm := orm.NewBatch(db)
 	batchHashes := make([]string, len(processingKeys))
 	for i := range batchHashes {
-		batch, err := batchOrm.InsertBatch(context.Background(), 0, 1, chunkHash1.Hex(), chunkHash2.Hex(), []*types.Chunk{chunk1, chunk2})
+		batchMeta := &types.BatchMeta{
+			StartChunkIndex: 0,
+			StartChunkHash:  chunkHash1.Hex(),
+			EndChunkIndex:   1,
+			EndChunkHash:    chunkHash2.Hex(),
+		}
+		batch, err := batchOrm.InsertBatch(context.Background(), []*types.Chunk{chunk1, chunk2}, batchMeta)
 		assert.NoError(t, err)
 		batchHashes[i] = batch.Hash
 	}
@@ -210,18 +234,30 @@ func testL2RelayerGasOracleConfirm(t *testing.T) {
 	db := setupL2RelayerDB(t)
 	defer database.CloseDB(db)
 
+	batchMeta1 := &types.BatchMeta{
+		StartChunkIndex: 0,
+		StartChunkHash:  chunkHash1.Hex(),
+		EndChunkIndex:   0,
+		EndChunkHash:    chunkHash1.Hex(),
+	}
 	batchOrm := orm.NewBatch(db)
-	batch1, err := batchOrm.InsertBatch(context.Background(), 0, 0, chunkHash1.Hex(), chunkHash1.Hex(), []*types.Chunk{chunk1})
+	batch1, err := batchOrm.InsertBatch(context.Background(), []*types.Chunk{chunk1}, batchMeta1)
 	assert.NoError(t, err)
 
-	batch2, err := batchOrm.InsertBatch(context.Background(), 1, 1, chunkHash2.Hex(), chunkHash2.Hex(), []*types.Chunk{chunk2})
+	batchMeta2 := &types.BatchMeta{
+		StartChunkIndex: 1,
+		StartChunkHash:  chunkHash2.Hex(),
+		EndChunkIndex:   1,
+		EndChunkHash:    chunkHash2.Hex(),
+	}
+	batch2, err := batchOrm.InsertBatch(context.Background(), []*types.Chunk{chunk2}, batchMeta2)
 	assert.NoError(t, err)
 
 	// Create and set up the Layer2 Relayer.
 	l2Cfg := cfg.L2Config
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
-	l2Relayer, err := NewLayer2Relayer(ctx, l2Cli, db, l2Cfg.RelayerConfig, false)
+	l2Relayer, err := NewLayer2Relayer(ctx, l2Cli, db, l2Cfg.RelayerConfig, false, nil)
 	assert.NoError(t, err)
 
 	// Simulate message confirmations.
@@ -259,7 +295,7 @@ func testLayer2RelayerProcessGasPriceOracle(t *testing.T) {
 	db := setupL2RelayerDB(t)
 	defer database.CloseDB(db)
 
-	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, cfg.L2Config.RelayerConfig, false)
+	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, cfg.L2Config.RelayerConfig, false, nil)
 	assert.NoError(t, err)
 	assert.NotNil(t, relayer)
 

bridge/internal/controller/sender/estimategas.go

@@ -7,15 +7,19 @@ import (
 	"github.com/scroll-tech/go-ethereum"
 	"github.com/scroll-tech/go-ethereum/accounts/abi/bind"
 	"github.com/scroll-tech/go-ethereum/common"
+	"github.com/scroll-tech/go-ethereum/log"
 )
 
 func (s *Sender) estimateLegacyGas(auth *bind.TransactOpts, contract *common.Address, value *big.Int, input []byte, minGasLimit uint64) (*FeeData, error) {
 	gasPrice, err := s.client.SuggestGasPrice(s.ctx)
 	if err != nil {
+		log.Error("estimateLegacyGas SuggestGasPrice failure", "error", err)
 		return nil, err
 	}
+
 	gasLimit, err := s.estimateGasLimit(auth, contract, input, gasPrice, nil, nil, value, minGasLimit)
 	if err != nil {
+		log.Error("estimateLegacyGas estimateGasLimit failure", "gasPrice", gasPrice, "error", err)
 		return nil, err
 	}
 	return &FeeData{
@@ -27,6 +31,7 @@ func (s *Sender) estimateLegacyGas(auth *bind.TransactOpts, contract *common.Add
 func (s *Sender) estimateDynamicGas(auth *bind.TransactOpts, contract *common.Address, value *big.Int, input []byte, minGasLimit uint64) (*FeeData, error) {
 	gasTipCap, err := s.client.SuggestGasTipCap(s.ctx)
 	if err != nil {
+		log.Error("estimateDynamicGas SuggestGasTipCap failure", "error", err)
 		return nil, err
 	}
 
@@ -40,6 +45,7 @@ func (s *Sender) estimateDynamicGas(auth *bind.TransactOpts, contract *common.Ad
 	)
 	gasLimit, err := s.estimateGasLimit(auth, contract, input, nil, gasTipCap, gasFeeCap, value, minGasLimit)
 	if err != nil {
+		log.Error("estimateDynamicGas estimateGasLimit failure", "error", err)
 		return nil, err
 	}
 	return &FeeData{
@@ -61,13 +67,14 @@ func (s *Sender) estimateGasLimit(opts *bind.TransactOpts, contract *common.Addr
 	}
 	gasLimit, err := s.client.EstimateGas(s.ctx, msg)
 	if err != nil {
+		log.Error("estimateGasLimit EstimateGas failure", "msg", msg, "error", err)
 		return 0, err
 	}
 	if minGasLimit > gasLimit {
 		gasLimit = minGasLimit
 	}
 
-	gasLimit = gasLimit * 15 / 10 // 50% extra gas to void out of gas error
+	gasLimit = gasLimit * 15 / 10 // 50% extra gas to avoid out of gas error
 
 	return gasLimit, nil
 }

bridge/internal/controller/sender/metrics.go

@@ -0,0 +1,95 @@
+package sender
+
+import (
+	"sync"
+
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promauto"
+)
+
+type senderMetrics struct {
+	senderCheckBalancerTotal                *prometheus.CounterVec
+	senderCheckPendingTransactionTotal      *prometheus.CounterVec
+	sendTransactionTotal                    *prometheus.CounterVec
+	sendTransactionFailureFullTx            *prometheus.GaugeVec
+	sendTransactionFailureRepeatTransaction *prometheus.CounterVec
+	sendTransactionFailureGetFee            *prometheus.CounterVec
+	sendTransactionFailureSendTx            *prometheus.CounterVec
+	resubmitTransactionTotal                *prometheus.CounterVec
+	currentPendingTxsNum                    *prometheus.GaugeVec
+	currentGasFeeCap                        *prometheus.GaugeVec
+	currentGasTipCap                        *prometheus.GaugeVec
+	currentGasPrice                         *prometheus.GaugeVec
+	currentGasLimit                         *prometheus.GaugeVec
+	currentNonce                            *prometheus.GaugeVec
+}
+
+var (
+	initSenderMetricOnce sync.Once
+	sm                   *senderMetrics
+)
+
+func initSenderMetrics(reg prometheus.Registerer) *senderMetrics {
+	initSenderMetricOnce.Do(func() {
+		sm = &senderMetrics{
+			sendTransactionTotal: promauto.With(reg).NewCounterVec(prometheus.CounterOpts{
+				Name: "bridge_sender_send_transaction_total",
+				Help: "The total number of sending transaction.",
+			}, []string{"service", "name"}),
+			sendTransactionFailureFullTx: promauto.With(reg).NewGaugeVec(prometheus.GaugeOpts{
+				Name: "bridge_sender_send_transaction_full_tx_failure_total",
+				Help: "The total number of sending transaction failure for full size tx.",
+			}, []string{"service", "name"}),
+			sendTransactionFailureRepeatTransaction: promauto.With(reg).NewCounterVec(prometheus.CounterOpts{
+				Name: "bridge_sender_send_transaction_repeat_transaction_failure_total",
+				Help: "The total number of sending transaction failure for repeat transaction.",
+			}, []string{"service", "name"}),
+			sendTransactionFailureGetFee: promauto.With(reg).NewCounterVec(prometheus.CounterOpts{
+				Name: "bridge_sender_send_transaction_get_fee_failure_total",
+				Help: "The total number of sending transaction failure for getting fee.",
+			}, []string{"service", "name"}),
+			sendTransactionFailureSendTx: promauto.With(reg).NewCounterVec(prometheus.CounterOpts{
+				Name: "bridge_sender_send_transaction_send_tx_failure_total",
+				Help: "The total number of sending transaction failure for sending tx.",
+			}, []string{"service", "name"}),
+			resubmitTransactionTotal: promauto.With(reg).NewCounterVec(prometheus.CounterOpts{
+				Name: "bridge_sender_send_transaction_resubmit_send_transaction_total",
+				Help: "The total number of resubmit transaction.",
+			}, []string{"service", "name"}),
+			currentPendingTxsNum: promauto.With(reg).NewGaugeVec(prometheus.GaugeOpts{
+				Name: "bridge_sender_pending_tx_count",
+				Help: "The pending tx count in the sender.",
+			}, []string{"service", "name"}),
+			currentGasFeeCap: promauto.With(reg).NewGaugeVec(prometheus.GaugeOpts{
+				Name: "bridge_sender_gas_fee_cap",
+				Help: "The gas fee of current transaction.",
+			}, []string{"service", "name"}),
+			currentGasTipCap: promauto.With(reg).NewGaugeVec(prometheus.GaugeOpts{
+				Name: "bridge_sender_gas_tip_cap",
+				Help: "The gas tip of current transaction.",
+			}, []string{"service", "name"}),
+			currentGasPrice: promauto.With(reg).NewGaugeVec(prometheus.GaugeOpts{
+				Name: "bridge_sender_gas_price_cap",
+				Help: "The gas price of current transaction.",
+			}, []string{"service", "name"}),
+			currentGasLimit: promauto.With(reg).NewGaugeVec(prometheus.GaugeOpts{
+				Name: "bridge_sender_gas_limit",
+				Help: "The gas limit of current transaction.",
+			}, []string{"service", "name"}),
+			currentNonce: promauto.With(reg).NewGaugeVec(prometheus.GaugeOpts{
+				Name: "bridge_sender_nonce",
+				Help: "The nonce of current transaction.",
+			}, []string{"service", "name"}),
+			senderCheckPendingTransactionTotal: promauto.With(reg).NewCounterVec(prometheus.CounterOpts{
+				Name: "bridge_sender_check_pending_transaction_total",
+				Help: "The total number of check pending transaction.",
+			}, []string{"service", "name"}),
+			senderCheckBalancerTotal: promauto.With(reg).NewCounterVec(prometheus.CounterOpts{
+				Name: "bridge_sender_check_balancer_total",
+				Help: "The total number of check balancer.",
+			}, []string{"service", "name"}),
+		}
+	})
+
+	return sm
+}

bridge/internal/controller/sender/sender.go

@@ -11,6 +11,7 @@ import (
 	"time"
 
 	cmapV2 "github.com/orcaman/concurrent-map/v2"
+	"github.com/prometheus/client_golang/prometheus"
 	"github.com/scroll-tech/go-ethereum/accounts/abi/bind"
 	"github.com/scroll-tech/go-ethereum/common"
 	"github.com/scroll-tech/go-ethereum/core/types"
@@ -55,6 +56,15 @@ type FeeData struct {
 	gasLimit uint64
 }
 
+func newEmptyFeeData() *FeeData {
+	return &FeeData{
+		gasFeeCap: big.NewInt(0),
+		gasTipCap: big.NewInt(0),
+		gasPrice:  big.NewInt(0),
+		gasLimit:  0,
+	}
+}
+
 // PendingTransaction submitted but pending transactions
 type PendingTransaction struct {
 	submitAt uint64
@@ -70,6 +80,8 @@ type Sender struct {
 	client  *ethclient.Client // The client to retrieve on chain data or send transaction.
 	chainID *big.Int          // The chain id of the endpoint
 	ctx     context.Context
+	service string
+	name    string
 
 	auth       *bind.TransactOpts
 	minBalance *big.Int
@@ -80,11 +92,15 @@ type Sender struct {
 	confirmCh     chan *Confirmation
 
 	stopCh chan struct{}
+
+	metrics *senderMetrics
+
+	cachedMaxFeeData *FeeData // hacky way to avoid getFeeData error
 }
 
 // NewSender returns a new instance of transaction sender
 // txConfirmationCh is used to notify confirmed transaction
-func NewSender(ctx context.Context, config *config.SenderConfig, priv *ecdsa.PrivateKey) (*Sender, error) {
+func NewSender(ctx context.Context, config *config.SenderConfig, priv *ecdsa.PrivateKey, service, name string, reg prometheus.Registerer) (*Sender, error) {
 	client, err := ethclient.Dial(config.Endpoint)
 	if err != nil {
 		return nil, fmt.Errorf("failed to dial eth client, err: %w", err)
@@ -124,18 +140,22 @@ func NewSender(ctx context.Context, config *config.SenderConfig, priv *ecdsa.Pri
 	}
 
 	sender := &Sender{
-		ctx:           ctx,
-		config:        config,
-		client:        client,
-		chainID:       chainID,
-		auth:          auth,
-		minBalance:    config.MinBalance,
-		confirmCh:     make(chan *Confirmation, 128),
-		blockNumber:   header.Number.Uint64(),
-		baseFeePerGas: baseFeePerGas,
-		pendingTxs:    cmapV2.New[*PendingTransaction](),
-		stopCh:        make(chan struct{}),
+		ctx:              ctx,
+		config:           config,
+		client:           client,
+		chainID:          chainID,
+		auth:             auth,
+		minBalance:       config.MinBalance,
+		confirmCh:        make(chan *Confirmation, 128),
+		blockNumber:      header.Number.Uint64(),
+		baseFeePerGas:    baseFeePerGas,
+		pendingTxs:       cmapV2.New[*PendingTransaction](),
+		stopCh:           make(chan struct{}),
+		name:             name,
+		service:          service,
+		cachedMaxFeeData: newEmptyFeeData(),
 	}
+	sender.metrics = initSenderMetrics(reg)
 
 	go sender.loop(ctx)
 
@@ -181,12 +201,37 @@ func (s *Sender) getFeeData(auth *bind.TransactOpts, target *common.Address, val
 	return s.estimateLegacyGas(auth, target, value, data, minGasLimit)
 }
 
+func (s *Sender) cacheMaxFeeData(feeData *FeeData) {
+	if feeData == nil {
+		log.Error("cacheMaxFeeData", "err", "feeData must not be nil")
+		return
+	}
+
+	if feeData.gasFeeCap != nil && feeData.gasFeeCap.Cmp(s.cachedMaxFeeData.gasFeeCap) > 0 {
+		s.cachedMaxFeeData.gasFeeCap = feeData.gasFeeCap
+	}
+	if feeData.gasTipCap != nil && feeData.gasTipCap.Cmp(s.cachedMaxFeeData.gasTipCap) > 0 {
+		s.cachedMaxFeeData.gasTipCap = feeData.gasTipCap
+	}
+	if feeData.gasPrice != nil && feeData.gasPrice.Cmp(s.cachedMaxFeeData.gasPrice) > 0 {
+		s.cachedMaxFeeData.gasPrice = feeData.gasPrice
+	}
+	if feeData.gasLimit > s.cachedMaxFeeData.gasLimit {
+		s.cachedMaxFeeData.gasLimit = feeData.gasLimit
+	}
+}
+
 // SendTransaction send a signed L2tL1 transaction.
 func (s *Sender) SendTransaction(ID string, target *common.Address, value *big.Int, data []byte, minGasLimit uint64) (common.Hash, error) {
+	s.metrics.sendTransactionTotal.WithLabelValues(s.service, s.name).Inc()
 	if s.IsFull() {
+		s.metrics.sendTransactionFailureFullTx.WithLabelValues(s.service, s.name).Set(1)
 		return common.Hash{}, ErrFullPending
 	}
+
+	s.metrics.sendTransactionFailureFullTx.WithLabelValues(s.service, s.name).Set(0)
 	if ok := s.pendingTxs.SetIfAbsent(ID, nil); !ok {
+		s.metrics.sendTransactionFailureRepeatTransaction.WithLabelValues(s.service, s.name).Inc()
 		return common.Hash{}, fmt.Errorf("repeat transaction ID: %s", ID)
 	}
 
@@ -195,10 +240,26 @@ func (s *Sender) SendTransaction(ID string, target *common.Address, value *big.I
 		tx      *types.Transaction
 		err     error
 	)
+
+	defer func() {
+		if err != nil {
+			s.pendingTxs.Remove(ID) // release the ID on failure
+		}
+	}()
+
 	if feeData, err = s.getFeeData(s.auth, target, value, data, minGasLimit); err != nil {
-		return common.Hash{}, fmt.Errorf("failed to get fee data, err: %w", err)
+		s.metrics.sendTransactionFailureGetFee.WithLabelValues(s.service, s.name).Inc()
+		log.Error("failed to get fee data", "err", err)
+		if s.cachedMaxFeeData.gasLimit == 0 { // if no MaxFeeData cached, and getFeeData fails
+			return common.Hash{}, fmt.Errorf("failed to get fee data for the first time, err: %w", err)
+		}
+		feeData = s.cachedMaxFeeData
+	} else {
+		s.cacheMaxFeeData(feeData)
 	}
+
 	if tx, err = s.createAndSendTx(s.auth, feeData, target, value, data, nil); err != nil {
+		s.metrics.sendTransactionFailureSendTx.WithLabelValues(s.service, s.name).Inc()
 		return common.Hash{}, fmt.Errorf("failed to create and send transaction, err: %w", err)
 	}
 
@@ -287,6 +348,20 @@ func (s *Sender) createAndSendTx(auth *bind.TransactOpts, feeData *FeeData, targ
 		return nil, err
 	}
 
+	if feeData.gasTipCap != nil {
+		s.metrics.currentGasTipCap.WithLabelValues(s.service, s.name).Set(float64(feeData.gasTipCap.Uint64()))
+	}
+
+	if feeData.gasFeeCap != nil {
+		s.metrics.currentGasFeeCap.WithLabelValues(s.service, s.name).Set(float64(feeData.gasFeeCap.Uint64()))
+	}
+
+	if feeData.gasPrice != nil {
+		s.metrics.currentGasPrice.WithLabelValues(s.service, s.name).Set(float64(feeData.gasPrice.Uint64()))
+	}
+
+	s.metrics.currentGasLimit.WithLabelValues(s.service, s.name).Set(float64(feeData.gasLimit))
+
 	// update nonce when it is not from resubmit
 	if overrideNonce == nil {
 		auth.Nonce = big.NewInt(int64(nonce + 1))
@@ -309,8 +384,15 @@ func (s *Sender) resubmitTransaction(feeData *FeeData, auth *bind.TransactOpts,
 	escalateMultipleDen := new(big.Int).SetUint64(s.config.EscalateMultipleDen)
 	maxGasPrice := new(big.Int).SetUint64(s.config.MaxGasPrice)
 
+	txInfo := map[string]interface{}{
+		"tx_hash": tx.Hash().String(),
+		"tx_type": s.config.TxType,
+		"from":    auth.From.String(),
+	}
+
 	switch s.config.TxType {
 	case LegacyTxType, AccessListTxType: // `LegacyTxType`is for ganache mock node
+		originalGasPrice := feeData.gasPrice
 		gasPrice := escalateMultipleNum.Mul(escalateMultipleNum, big.NewInt(feeData.gasPrice.Int64()))
 		gasPrice = gasPrice.Div(gasPrice, escalateMultipleDen)
 		if gasPrice.Cmp(feeData.gasPrice) < 0 {
@@ -320,7 +402,13 @@ func (s *Sender) resubmitTransaction(feeData *FeeData, auth *bind.TransactOpts,
 			gasPrice = maxGasPrice
 		}
 		feeData.gasPrice = gasPrice
+
+		txInfo["original_gas_price"] = originalGasPrice
+		txInfo["adjusted_gas_price"] = gasPrice
 	default:
+		originalGasTipCap := big.NewInt(feeData.gasTipCap.Int64())
+		originalGasFeeCap := big.NewInt(feeData.gasFeeCap.Int64())
+
 		gasTipCap := big.NewInt(feeData.gasTipCap.Int64())
 		gasTipCap = gasTipCap.Mul(gasTipCap, escalateMultipleNum)
 		gasTipCap = gasTipCap.Div(gasTipCap, escalateMultipleDen)
@@ -352,9 +440,18 @@ func (s *Sender) resubmitTransaction(feeData *FeeData, auth *bind.TransactOpts,
 		}
 		feeData.gasFeeCap = gasFeeCap
 		feeData.gasTipCap = gasTipCap
+
+		txInfo["original_gas_tip_cap"] = originalGasTipCap
+		txInfo["adjusted_gas_tip_cap"] = gasTipCap
+		txInfo["original_gas_fee_cap"] = originalGasFeeCap
+		txInfo["adjusted_gas_fee_cap"] = gasFeeCap
 	}
 
+	log.Debug("Transaction gas adjustment details", txInfo)
+	s.cacheMaxFeeData(feeData)
+
 	nonce := tx.Nonce()
+	s.metrics.resubmitTransactionTotal.WithLabelValues(s.service, s.name).Inc()
 	return s.createAndSendTx(auth, feeData, tx.To(), tx.Value(), tx.Data(), &nonce)
 }
 
@@ -391,6 +488,12 @@ func (s *Sender) checkPendingTransaction(header *types.Header, confirmed uint64)
 				}
 			}
 		} else if s.config.EscalateBlocks+pending.submitAt < number {
+			log.Debug("resubmit transaction",
+				"tx hash", pending.tx.Hash().String(),
+				"submit block number", pending.submitAt,
+				"current block number", number,
+				"escalateBlocks", s.config.EscalateBlocks)
+
 			var tx *types.Transaction
 			tx, err := s.resubmitTransaction(pending.feeData, pending.signer, pending.tx)
 			if err != nil {
@@ -447,8 +550,8 @@ func (s *Sender) checkBalance(ctx context.Context) error {
 	}
 
 	if bls.Cmp(s.minBalance) < 0 {
-		return fmt.Errorf("insufficient account balance - actual balance: %s, minimum required balance: %s",
-			bls.String(), s.minBalance.String())
+		return fmt.Errorf("insufficient account balance - actual balance: %s, minimum required balance: %s, address: %s",
+			bls.String(), s.minBalance.String(), s.auth.From.String())
 	}
 
 	return nil
@@ -465,6 +568,7 @@ func (s *Sender) loop(ctx context.Context) {
 	for {
 		select {
 		case <-checkTick.C:
+			s.metrics.senderCheckPendingTransactionTotal.WithLabelValues(s.service, s.name).Inc()
 			header, err := s.client.HeaderByNumber(s.ctx, nil)
 			if err != nil {
 				log.Error("failed to get latest head", "err", err)
@@ -479,9 +583,10 @@ func (s *Sender) loop(ctx context.Context) {
 
 			s.checkPendingTransaction(header, confirmed)
 		case <-checkBalanceTicker.C:
+			s.metrics.senderCheckBalancerTotal.WithLabelValues(s.service, s.name).Inc()
 			// Check and set balance.
 			if err := s.checkBalance(ctx); err != nil {
-				log.Error("check balance, err: %w", err)
+				log.Error("check balance error", "err", err)
 			}
 		case <-ctx.Done():
 			return

bridge/internal/controller/sender/sender_test.go

@@ -70,7 +70,7 @@ func testNewSender(t *testing.T) {
 		// exit by Stop()
 		cfgCopy1 := *cfg.L1Config.RelayerConfig.SenderConfig
 		cfgCopy1.TxType = txType
-		newSender1, err := NewSender(context.Background(), &cfgCopy1, privateKey)
+		newSender1, err := NewSender(context.Background(), &cfgCopy1, privateKey, "test", "test", nil)
 		assert.NoError(t, err)
 		newSender1.Stop()
 
@@ -78,7 +78,7 @@ func testNewSender(t *testing.T) {
 		cfgCopy2 := *cfg.L1Config.RelayerConfig.SenderConfig
 		cfgCopy2.TxType = txType
 		subCtx, cancel := context.WithCancel(context.Background())
-		_, err = NewSender(subCtx, &cfgCopy2, privateKey)
+		_, err = NewSender(subCtx, &cfgCopy2, privateKey, "test", "test", nil)
 		assert.NoError(t, err)
 		cancel()
 	}
@@ -90,7 +90,7 @@ func testPendLimit(t *testing.T) {
 		cfgCopy.TxType = txType
 		cfgCopy.Confirmations = rpc.LatestBlockNumber
 		cfgCopy.PendingLimit = 2
-		newSender, err := NewSender(context.Background(), &cfgCopy, privateKey)
+		newSender, err := NewSender(context.Background(), &cfgCopy, privateKey, "test", "test", nil)
 		assert.NoError(t, err)
 
 		for i := 0; i < 2*newSender.PendingLimit(); i++ {
@@ -107,7 +107,7 @@ func testMinGasLimit(t *testing.T) {
 		cfgCopy := *cfg.L1Config.RelayerConfig.SenderConfig
 		cfgCopy.TxType = txType
 		cfgCopy.Confirmations = rpc.LatestBlockNumber
-		newSender, err := NewSender(context.Background(), &cfgCopy, privateKey)
+		newSender, err := NewSender(context.Background(), &cfgCopy, privateKey, "test", "test", nil)
 		assert.NoError(t, err)
 
 		client, err := ethclient.Dial(cfgCopy.Endpoint)
@@ -135,7 +135,7 @@ func testResubmitTransaction(t *testing.T) {
 	for _, txType := range txTypes {
 		cfgCopy := *cfg.L1Config.RelayerConfig.SenderConfig
 		cfgCopy.TxType = txType
-		s, err := NewSender(context.Background(), &cfgCopy, privateKey)
+		s, err := NewSender(context.Background(), &cfgCopy, privateKey, "test", "test", nil)
 		assert.NoError(t, err)
 		tx := types.NewTransaction(s.auth.Nonce.Uint64(), common.Address{}, big.NewInt(0), 0, big.NewInt(0), nil)
 		feeData, err := s.getFeeData(s.auth, &common.Address{}, big.NewInt(0), nil, 0)
@@ -151,7 +151,7 @@ func testResubmitTransactionWithRisingBaseFee(t *testing.T) {
 
 	cfgCopy := *cfg.L1Config.RelayerConfig.SenderConfig
 	cfgCopy.TxType = txType
-	s, err := NewSender(context.Background(), &cfgCopy, privateKey)
+	s, err := NewSender(context.Background(), &cfgCopy, privateKey, "test", "test", nil)
 	assert.NoError(t, err)
 	tx := types.NewTransaction(s.auth.Nonce.Uint64(), common.Address{}, big.NewInt(0), 0, big.NewInt(0), nil)
 	s.baseFeePerGas = 1000
@@ -186,7 +186,7 @@ func testCheckPendingTransaction(t *testing.T) {
 	for _, txType := range txTypes {
 		cfgCopy := *cfg.L1Config.RelayerConfig.SenderConfig
 		cfgCopy.TxType = txType
-		s, err := NewSender(context.Background(), &cfgCopy, privateKey)
+		s, err := NewSender(context.Background(), &cfgCopy, privateKey, "test", "test", nil)
 		assert.NoError(t, err)
 
 		header := &types.Header{Number: big.NewInt(100), BaseFee: big.NewInt(100)}

bridge/internal/controller/watcher/batch_proposer.go

@@ -5,6 +5,8 @@ import (
 	"fmt"
 	"time"
 
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promauto"
 	"github.com/scroll-tech/go-ethereum/log"
 	"gorm.io/gorm"
 
@@ -26,13 +28,28 @@ type BatchProposer struct {
 	maxChunkNumPerBatch             uint64
 	maxL1CommitGasPerBatch          uint64
 	maxL1CommitCalldataSizePerBatch uint32
-	minChunkNumPerBatch             uint64
 	batchTimeoutSec                 uint64
 	gasCostIncreaseMultiplier       float64
+
+	batchProposerCircleTotal           prometheus.Counter
+	proposeBatchFailureTotal           prometheus.Counter
+	proposeBatchUpdateInfoTotal        prometheus.Counter
+	proposeBatchUpdateInfoFailureTotal prometheus.Counter
+	totalL1CommitGas                   prometheus.Gauge
+	totalL1CommitCalldataSize          prometheus.Gauge
+	batchChunksNum                     prometheus.Gauge
+	batchFirstBlockTimeoutReached      prometheus.Counter
+	batchChunksProposeNotEnoughTotal   prometheus.Counter
 }
 
 // NewBatchProposer creates a new BatchProposer instance.
-func NewBatchProposer(ctx context.Context, cfg *config.BatchProposerConfig, db *gorm.DB) *BatchProposer {
+func NewBatchProposer(ctx context.Context, cfg *config.BatchProposerConfig, db *gorm.DB, reg prometheus.Registerer) *BatchProposer {
+	log.Debug("new batch proposer",
+		"maxChunkNumPerBatch", cfg.MaxChunkNumPerBatch,
+		"maxL1CommitGasPerBatch", cfg.MaxL1CommitGasPerBatch,
+		"maxL1CommitCalldataSizePerBatch", cfg.MaxL1CommitCalldataSizePerBatch,
+		"batchTimeoutSec", cfg.BatchTimeoutSec)
+
 	return &BatchProposer{
 		ctx:                             ctx,
 		db:                              db,
@@ -42,25 +59,65 @@ func NewBatchProposer(ctx context.Context, cfg *config.BatchProposerConfig, db *
 		maxChunkNumPerBatch:             cfg.MaxChunkNumPerBatch,
 		maxL1CommitGasPerBatch:          cfg.MaxL1CommitGasPerBatch,
 		maxL1CommitCalldataSizePerBatch: cfg.MaxL1CommitCalldataSizePerBatch,
-		minChunkNumPerBatch:             cfg.MinChunkNumPerBatch,
 		batchTimeoutSec:                 cfg.BatchTimeoutSec,
 		gasCostIncreaseMultiplier:       cfg.GasCostIncreaseMultiplier,
+
+		batchProposerCircleTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+			Name: "bridge_propose_batch_circle_total",
+			Help: "Total number of propose batch total.",
+		}),
+		proposeBatchFailureTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+			Name: "bridge_propose_batch_failure_circle_total",
+			Help: "Total number of propose batch total.",
+		}),
+		proposeBatchUpdateInfoTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+			Name: "bridge_propose_batch_update_info_total",
+			Help: "Total number of propose batch update info total.",
+		}),
+		proposeBatchUpdateInfoFailureTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+			Name: "bridge_propose_batch_update_info_failure_total",
+			Help: "Total number of propose batch update info failure total.",
+		}),
+		totalL1CommitGas: promauto.With(reg).NewGauge(prometheus.GaugeOpts{
+			Name: "bridge_propose_batch_total_l1_commit_gas",
+			Help: "The total l1 commit gas",
+		}),
+		totalL1CommitCalldataSize: promauto.With(reg).NewGauge(prometheus.GaugeOpts{
+			Name: "bridge_propose_batch_total_l1_call_data_size",
+			Help: "The total l1 call data size",
+		}),
+		batchChunksNum: promauto.With(reg).NewGauge(prometheus.GaugeOpts{
+			Name: "bridge_propose_batch_chunks_number",
+			Help: "The number of chunks in the batch",
+		}),
+		batchFirstBlockTimeoutReached: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+			Name: "bridge_propose_batch_first_block_timeout_reached_total",
+			Help: "Total times of batch's first block timeout reached",
+		}),
+		batchChunksProposeNotEnoughTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+			Name: "bridge_propose_batch_chunks_propose_not_enough_total",
+			Help: "Total number of batch chunk propose not enough",
+		}),
 	}
 }
 
 // TryProposeBatch tries to propose a new batches.
 func (p *BatchProposer) TryProposeBatch() {
-	dbChunks, err := p.proposeBatchChunks()
+	p.batchProposerCircleTotal.Inc()
+	dbChunks, batchMeta, err := p.proposeBatchChunks()
 	if err != nil {
+		p.proposeBatchFailureTotal.Inc()
 		log.Error("proposeBatchChunks failed", "err", err)
 		return
 	}
-	if err := p.updateBatchInfoInDB(dbChunks); err != nil {
+	if err := p.updateBatchInfoInDB(dbChunks, batchMeta); err != nil {
+		p.proposeBatchUpdateInfoFailureTotal.Inc()
 		log.Error("update batch info in db failed", "err", err)
 	}
 }
 
-func (p *BatchProposer) updateBatchInfoInDB(dbChunks []*orm.Chunk) error {
+func (p *BatchProposer) updateBatchInfoInDB(dbChunks []*orm.Chunk, batchMeta *types.BatchMeta) error {
+	p.proposeBatchUpdateInfoTotal.Inc()
 	numChunks := len(dbChunks)
 	if numChunks <= 0 {
 		return nil
@@ -70,17 +127,20 @@ func (p *BatchProposer) updateBatchInfoInDB(dbChunks []*orm.Chunk) error {
 		return err
 	}
 
-	startChunkIndex := dbChunks[0].Index
-	startChunkHash := dbChunks[0].Hash
-	endChunkIndex := dbChunks[numChunks-1].Index
-	endChunkHash := dbChunks[numChunks-1].Hash
+	batchMeta.StartChunkIndex = dbChunks[0].Index
+	batchMeta.StartChunkHash = dbChunks[0].Hash
+	batchMeta.EndChunkIndex = dbChunks[numChunks-1].Index
+	batchMeta.EndChunkHash = dbChunks[numChunks-1].Hash
 	err = p.db.Transaction(func(dbTX *gorm.DB) error {
-		batch, dbErr := p.batchOrm.InsertBatch(p.ctx, startChunkIndex, endChunkIndex, startChunkHash, endChunkHash, chunks, dbTX)
+		batch, dbErr := p.batchOrm.InsertBatch(p.ctx, chunks, batchMeta, dbTX)
 		if dbErr != nil {
+			log.Warn("BatchProposer.updateBatchInfoInDB insert batch failure",
+				"start chunk index", batchMeta.StartChunkIndex, "end chunk index", batchMeta.EndChunkIndex, "error", dbErr)
 			return dbErr
 		}
-		dbErr = p.chunkOrm.UpdateBatchHashInRange(p.ctx, startChunkIndex, endChunkIndex, batch.Hash, dbTX)
+		dbErr = p.chunkOrm.UpdateBatchHashInRange(p.ctx, batchMeta.StartChunkIndex, batchMeta.EndChunkIndex, batch.Hash, dbTX)
 		if dbErr != nil {
+			log.Warn("BatchProposer.UpdateBatchHashInRange update the chunk's batch hash failure", "hash", batch.Hash, "error", dbErr)
 			return dbErr
 		}
 		return nil
@@ -88,93 +148,106 @@ func (p *BatchProposer) updateBatchInfoInDB(dbChunks []*orm.Chunk) error {
 	return err
 }
 
-func (p *BatchProposer) proposeBatchChunks() ([]*orm.Chunk, error) {
-	dbChunks, err := p.chunkOrm.GetUnbatchedChunks(p.ctx)
+func (p *BatchProposer) proposeBatchChunks() ([]*orm.Chunk, *types.BatchMeta, error) {
+	unbatchedChunkIndex, err := p.batchOrm.GetFirstUnbatchedChunkIndex(p.ctx)
 	if err != nil {
-		return nil, err
+		return nil, nil, err
+	}
+
+	dbChunks, err := p.chunkOrm.GetChunksGEIndex(p.ctx, unbatchedChunkIndex, int(p.maxChunkNumPerBatch)+1)
+	if err != nil {
+		return nil, nil, err
 	}
 
 	if len(dbChunks) == 0 {
-		return nil, nil
+		return nil, nil, nil
 	}
 
-	firstChunk := dbChunks[0]
-	totalL1CommitCalldataSize := firstChunk.TotalL1CommitCalldataSize
-	totalL1CommitGas := firstChunk.TotalL1CommitGas
-	totalChunks := uint64(1)
-	totalL1MessagePopped := firstChunk.TotalL1MessagesPoppedBefore + uint64(firstChunk.TotalL1MessagesPoppedInChunk)
+	var totalL1CommitCalldataSize uint32
+	var totalL1CommitGas uint64
+	var totalChunks uint64
+	var totalL1MessagePopped uint64
+	var batchMeta types.BatchMeta
 
 	parentBatch, err := p.batchOrm.GetLatestBatch(p.ctx)
 	if err != nil {
-		return nil, err
-	}
-
-	getKeccakGas := func(size uint64) uint64 {
-		return 30 + 6*((size+31)/32) // 30 + 6 * ceil(size / 32)
+		return nil, nil, err
 	}
 
 	// Add extra gas costs
-	totalL1CommitGas += 4 * 2100                                       // 4 one-time cold sload for commitBatch
-	totalL1CommitGas += 20000                                          // 1 time sstore
-	totalL1CommitGas += 16                                             // version in calldata
-	totalL1CommitGas += 16 * (32 * (totalL1MessagePopped + 255) / 256) // _skippedL1MessageBitmap in calldata
+	totalL1CommitGas += 4 * 2100                     // 4 one-time cold sload for commitBatch
+	totalL1CommitGas += 20000                        // 1 time sstore
+	totalL1CommitGas += types.CalldataNonZeroByteGas // version in calldata
 
 	// adjusting gas:
 	// add 1 time cold sload (2100 gas) for L1MessageQueue
 	// add 1 time cold address access (2600 gas) for L1MessageQueue
 	// minus 1 time warm sload (100 gas) & 1 time warm address access (100 gas)
 	totalL1CommitGas += (2100 + 2600 - 100 - 100)
-	totalL1CommitGas += getKeccakGas(32 * totalChunks) // batch data hash
 	if parentBatch != nil {
-		totalL1CommitGas += getKeccakGas(uint64(len(parentBatch.BatchHeader))) // parent batch header hash
-		totalL1CommitGas += 16 * uint64(len(parentBatch.BatchHeader))          // parent batch header in calldata
-	}
-	// batch header size: 89 + 32 * ceil(l1MessagePopped / 256)
-	totalL1CommitGas += getKeccakGas(89 + 32*(totalL1MessagePopped+255)/256)
-
-	// Check if the first chunk breaks hard limits.
-	// If so, it indicates there are bugs in chunk-proposer, manual fix is needed.
-	if p.gasCostIncreaseMultiplier*float64(totalL1CommitGas) > float64(p.maxL1CommitGasPerBatch) {
-		return nil, fmt.Errorf(
-			"the first chunk exceeds l1 commit gas limit; start block number: %v, end block number: %v, commit gas: %v, max commit gas limit: %v",
-			firstChunk.StartBlockNumber,
-			firstChunk.EndBlockNumber,
-			totalL1CommitGas,
-			p.maxL1CommitGasPerBatch,
-		)
+		totalL1CommitGas += types.GetKeccak256Gas(uint64(len(parentBatch.BatchHeader)))         // parent batch header hash
+		totalL1CommitGas += types.CalldataNonZeroByteGas * uint64(len(parentBatch.BatchHeader)) // parent batch header in calldata
 	}
 
-	if totalL1CommitCalldataSize > p.maxL1CommitCalldataSizePerBatch {
-		return nil, fmt.Errorf(
-			"the first chunk exceeds l1 commit calldata size limit; start block number: %v, end block number %v, calldata size: %v, max calldata size limit: %v",
-			firstChunk.StartBlockNumber,
-			firstChunk.EndBlockNumber,
-			totalL1CommitCalldataSize,
-			p.maxL1CommitCalldataSizePerBatch,
-		)
-	}
+	for i, chunk := range dbChunks {
+		// metric values
+		batchMeta.TotalL1CommitGas = totalL1CommitGas
+		batchMeta.TotalL1CommitCalldataSize = totalL1CommitCalldataSize
 
-	for i, chunk := range dbChunks[1:] {
 		totalL1CommitCalldataSize += chunk.TotalL1CommitCalldataSize
 		totalL1CommitGas += chunk.TotalL1CommitGas
 		// adjust batch data hash gas cost
-		totalL1CommitGas -= getKeccakGas(32 * totalChunks)
+		totalL1CommitGas -= types.GetKeccak256Gas(32 * totalChunks)
 		totalChunks++
-		totalL1CommitGas += getKeccakGas(32 * totalChunks)
-		// adjust batch header hash gas cost
-		totalL1CommitGas -= getKeccakGas(89 + 32*(totalL1MessagePopped+255)/256)
-		totalL1CommitGas -= 16 * (32 * (totalL1MessagePopped + 255) / 256)
+		totalL1CommitGas += types.GetKeccak256Gas(32 * totalChunks)
+		// adjust batch header hash gas cost, batch header size: 89 + 32 * ceil(l1MessagePopped / 256)
+		totalL1CommitGas -= types.GetKeccak256Gas(89 + 32*(totalL1MessagePopped+255)/256)
+		totalL1CommitGas -= types.CalldataNonZeroByteGas * (32 * (totalL1MessagePopped + 255) / 256)
 		totalL1MessagePopped += uint64(chunk.TotalL1MessagesPoppedInChunk)
-		totalL1CommitGas += 16 * (32 * (totalL1MessagePopped + 255) / 256)
-		totalL1CommitGas += getKeccakGas(89 + 32*(totalL1MessagePopped+255)/256)
+		totalL1CommitGas += types.CalldataNonZeroByteGas * (32 * (totalL1MessagePopped + 255) / 256)
+		totalL1CommitGas += types.GetKeccak256Gas(89 + 32*(totalL1MessagePopped+255)/256)
+		totalOverEstimateL1CommitGas := uint64(p.gasCostIncreaseMultiplier * float64(totalL1CommitGas))
 		if totalChunks > p.maxChunkNumPerBatch ||
 			totalL1CommitCalldataSize > p.maxL1CommitCalldataSizePerBatch ||
-			p.gasCostIncreaseMultiplier*float64(totalL1CommitGas) > float64(p.maxL1CommitGasPerBatch) {
-			return dbChunks[:i+1], nil
+			totalOverEstimateL1CommitGas > p.maxL1CommitGasPerBatch {
+			// Check if the first chunk breaks hard limits.
+			// If so, it indicates there are bugs in chunk-proposer, manual fix is needed.
+			if i == 0 {
+				if totalOverEstimateL1CommitGas > p.maxL1CommitGasPerBatch {
+					return nil, nil, fmt.Errorf(
+						"the first chunk exceeds l1 commit gas limit; start block number: %v, end block number: %v, commit gas: %v, max commit gas limit: %v",
+						dbChunks[0].StartBlockNumber,
+						dbChunks[0].EndBlockNumber,
+						totalL1CommitGas,
+						p.maxL1CommitGasPerBatch,
+					)
+				}
+				if totalL1CommitCalldataSize > p.maxL1CommitCalldataSizePerBatch {
+					return nil, nil, fmt.Errorf(
+						"the first chunk exceeds l1 commit calldata size limit; start block number: %v, end block number %v, calldata size: %v, max calldata size limit: %v",
+						dbChunks[0].StartBlockNumber,
+						dbChunks[0].EndBlockNumber,
+						totalL1CommitCalldataSize,
+						p.maxL1CommitCalldataSizePerBatch,
+					)
+				}
+			}
+
+			log.Debug("breaking limit condition in batching",
+				"currentTotalChunks", totalChunks,
+				"maxChunkNumPerBatch", p.maxChunkNumPerBatch,
+				"currentL1CommitCalldataSize", totalL1CommitCalldataSize,
+				"maxL1CommitCalldataSizePerBatch", p.maxL1CommitCalldataSizePerBatch,
+				"currentOverEstimateL1CommitGas", totalOverEstimateL1CommitGas,
+				"maxL1CommitGasPerBatch", p.maxL1CommitGasPerBatch)
+
+			p.totalL1CommitGas.Set(float64(batchMeta.TotalL1CommitGas))
+			p.totalL1CommitCalldataSize.Set(float64(batchMeta.TotalL1CommitCalldataSize))
+			p.batchChunksNum.Set(float64(i))
+			return dbChunks[:i], &batchMeta, nil
 		}
 	}
 
-	var hasChunkTimeout bool
 	currentTimeSec := uint64(time.Now().Unix())
 	if dbChunks[0].StartBlockTime+p.batchTimeoutSec < currentTimeSec {
 		log.Warn("first block timeout",
@@ -182,16 +255,18 @@ func (p *BatchProposer) proposeBatchChunks() ([]*orm.Chunk, error) {
 			"first block timestamp", dbChunks[0].StartBlockTime,
 			"chunk outdated time threshold", currentTimeSec,
 		)
-		hasChunkTimeout = true
+		batchMeta.TotalL1CommitGas = totalL1CommitGas
+		batchMeta.TotalL1CommitCalldataSize = totalL1CommitCalldataSize
+		p.batchFirstBlockTimeoutReached.Inc()
+		p.totalL1CommitGas.Set(float64(batchMeta.TotalL1CommitGas))
+		p.totalL1CommitCalldataSize.Set(float64(batchMeta.TotalL1CommitCalldataSize))
+		p.batchChunksNum.Set(float64(len(dbChunks)))
+		return dbChunks, &batchMeta, nil
 	}
 
-	if !hasChunkTimeout && uint64(len(dbChunks)) < p.minChunkNumPerBatch {
-		log.Warn("The chunk number of the batch is less than the minimum limit",
-			"chunk num", len(dbChunks), "minChunkNumPerBatch", p.minChunkNumPerBatch,
-		)
-		return nil, nil
-	}
-	return dbChunks, nil
+	log.Debug("pending chunks do not reach one of the constraints or contain a timeout block")
+	p.batchChunksProposeNotEnoughTotal.Inc()
+	return nil, nil, nil
 }
 
 func (p *BatchProposer) dbChunksToBridgeChunks(dbChunks []*orm.Chunk) ([]*types.Chunk, error) {

bridge/internal/controller/watcher/batch_proposer_test.go

@@ -23,30 +23,22 @@ func testBatchProposer(t *testing.T) {
 	assert.NoError(t, err)
 
 	cp := NewChunkProposer(context.Background(), &config.ChunkProposerConfig{
-		MaxTxGasPerChunk:                1000000000,
-		MaxL2TxNumPerChunk:              10000,
+		MaxTxNumPerChunk:                10000,
 		MaxL1CommitGasPerChunk:          50000000000,
 		MaxL1CommitCalldataSizePerChunk: 1000000,
-		MinL1CommitCalldataSizePerChunk: 0,
 		MaxRowConsumptionPerChunk:       1048319,
 		ChunkTimeoutSec:                 300,
-	}, db)
+	}, db, nil)
 	cp.TryProposeChunk()
 
 	bp := NewBatchProposer(context.Background(), &config.BatchProposerConfig{
 		MaxChunkNumPerBatch:             10,
 		MaxL1CommitGasPerBatch:          50000000000,
 		MaxL1CommitCalldataSizePerBatch: 1000000,
-		MinChunkNumPerBatch:             1,
 		BatchTimeoutSec:                 300,
-	}, db)
+	}, db, nil)
 	bp.TryProposeBatch()
 
-	chunkOrm := orm.NewChunk(db)
-	chunks, err := chunkOrm.GetUnbatchedChunks(context.Background())
-	assert.NoError(t, err)
-	assert.Empty(t, chunks)
-
 	batchOrm := orm.NewBatch(db)
 	// get all batches.
 	batches, err := batchOrm.GetBatches(context.Background(), map[string]interface{}{}, []string{}, 0)
@@ -57,6 +49,7 @@ func testBatchProposer(t *testing.T) {
 	assert.Equal(t, types.RollupPending, types.RollupStatus(batches[0].RollupStatus))
 	assert.Equal(t, types.ProvingTaskUnassigned, types.ProvingStatus(batches[0].ProvingStatus))
 
+	chunkOrm := orm.NewChunk(db)
 	dbChunks, err := chunkOrm.GetChunksInRange(context.Background(), 0, 0)
 	assert.NoError(t, err)
 	assert.Len(t, batches, 1)

bridge/internal/controller/watcher/chunk_proposer.go

@@ -6,6 +6,8 @@ import (
 	"fmt"
 	"time"
 
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promauto"
 	gethTypes "github.com/scroll-tech/go-ethereum/core/types"
 	"github.com/scroll-tech/go-ethereum/log"
 	"gorm.io/gorm"
@@ -16,6 +18,10 @@ import (
 	"scroll-tech/bridge/internal/orm"
 )
 
+// maxNumBlockPerChunk is the maximum number of blocks we allow per chunk.
+// Normally we will pack much fewer blocks because of other limits.
+const maxNumBlockPerChunk int = 100
+
 // chunkRowConsumption is map(sub-circuit name => sub-circuit row count)
 type chunkRowConsumption map[string]uint64
 
@@ -49,43 +55,111 @@ type ChunkProposer struct {
 	chunkOrm   *orm.Chunk
 	l2BlockOrm *orm.L2Block
 
-	maxTxGasPerChunk                uint64
-	maxL2TxNumPerChunk              uint64
+	maxTxNumPerChunk                uint64
 	maxL1CommitGasPerChunk          uint64
 	maxL1CommitCalldataSizePerChunk uint64
-	minL1CommitCalldataSizePerChunk uint64
 	maxRowConsumptionPerChunk       uint64
 	chunkTimeoutSec                 uint64
 	gasCostIncreaseMultiplier       float64
+
+	chunkProposerCircleTotal           prometheus.Counter
+	proposeChunkFailureTotal           prometheus.Counter
+	proposeChunkUpdateInfoTotal        prometheus.Counter
+	proposeChunkUpdateInfoFailureTotal prometheus.Counter
+	chunkTxNum                         prometheus.Gauge
+	chunkEstimateL1CommitGas           prometheus.Gauge
+	totalL1CommitCalldataSize          prometheus.Gauge
+	totalTxGasUsed                     prometheus.Gauge
+	maxTxConsumption                   prometheus.Gauge
+	chunkBlocksNum                     prometheus.Gauge
+	chunkFirstBlockTimeoutReached      prometheus.Counter
+	chunkBlocksProposeNotEnoughTotal   prometheus.Counter
 }
 
 // NewChunkProposer creates a new ChunkProposer instance.
-func NewChunkProposer(ctx context.Context, cfg *config.ChunkProposerConfig, db *gorm.DB) *ChunkProposer {
+func NewChunkProposer(ctx context.Context, cfg *config.ChunkProposerConfig, db *gorm.DB, reg prometheus.Registerer) *ChunkProposer {
+	log.Debug("new chunk proposer",
+		"maxTxNumPerChunk", cfg.MaxTxNumPerChunk,
+		"maxL1CommitGasPerChunk", cfg.MaxL1CommitGasPerChunk,
+		"maxL1CommitCalldataSizePerChunk", cfg.MaxL1CommitCalldataSizePerChunk,
+		"maxRowConsumptionPerChunk", cfg.MaxRowConsumptionPerChunk,
+		"chunkTimeoutSec", cfg.ChunkTimeoutSec)
+
 	return &ChunkProposer{
 		ctx:                             ctx,
 		db:                              db,
 		chunkOrm:                        orm.NewChunk(db),
 		l2BlockOrm:                      orm.NewL2Block(db),
-		maxTxGasPerChunk:                cfg.MaxTxGasPerChunk,
-		maxL2TxNumPerChunk:              cfg.MaxL2TxNumPerChunk,
+		maxTxNumPerChunk:                cfg.MaxTxNumPerChunk,
 		maxL1CommitGasPerChunk:          cfg.MaxL1CommitGasPerChunk,
 		maxL1CommitCalldataSizePerChunk: cfg.MaxL1CommitCalldataSizePerChunk,
-		minL1CommitCalldataSizePerChunk: cfg.MinL1CommitCalldataSizePerChunk,
 		maxRowConsumptionPerChunk:       cfg.MaxRowConsumptionPerChunk,
 		chunkTimeoutSec:                 cfg.ChunkTimeoutSec,
 		gasCostIncreaseMultiplier:       cfg.GasCostIncreaseMultiplier,
+
+		chunkProposerCircleTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+			Name: "bridge_propose_chunk_circle_total",
+			Help: "Total number of propose chunk total.",
+		}),
+		proposeChunkFailureTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+			Name: "bridge_propose_chunk_failure_circle_total",
+			Help: "Total number of propose chunk failure total.",
+		}),
+		proposeChunkUpdateInfoTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+			Name: "bridge_propose_chunk_update_info_total",
+			Help: "Total number of propose chunk update info total.",
+		}),
+		proposeChunkUpdateInfoFailureTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+			Name: "bridge_propose_chunk_update_info_failure_total",
+			Help: "Total number of propose chunk update info failure total.",
+		}),
+		chunkTxNum: promauto.With(reg).NewGauge(prometheus.GaugeOpts{
+			Name: "bridge_propose_chunk_tx_num",
+			Help: "The chunk tx num",
+		}),
+		chunkEstimateL1CommitGas: promauto.With(reg).NewGauge(prometheus.GaugeOpts{
+			Name: "bridge_propose_chunk_estimate_l1_commit_gas",
+			Help: "The chunk estimate l1 commit gas",
+		}),
+		totalL1CommitCalldataSize: promauto.With(reg).NewGauge(prometheus.GaugeOpts{
+			Name: "bridge_propose_chunk_total_l1_commit_call_data_size",
+			Help: "The total l1 commit call data size",
+		}),
+		totalTxGasUsed: promauto.With(reg).NewGauge(prometheus.GaugeOpts{
+			Name: "bridge_propose_chunk_total_tx_gas_used",
+			Help: "The total tx gas used",
+		}),
+		maxTxConsumption: promauto.With(reg).NewGauge(prometheus.GaugeOpts{
+			Name: "bridge_propose_chunk_max_tx_consumption",
+			Help: "The max tx consumption",
+		}),
+		chunkBlocksNum: promauto.With(reg).NewGauge(prometheus.GaugeOpts{
+			Name: "bridge_propose_chunk_chunk_block_number",
+			Help: "The number of blocks in the chunk",
+		}),
+		chunkFirstBlockTimeoutReached: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+			Name: "bridge_propose_chunk_first_block_timeout_reached_total",
+			Help: "Total times of chunk's first block timeout reached",
+		}),
+		chunkBlocksProposeNotEnoughTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+			Name: "bridge_propose_chunk_blocks_propose_not_enough_total",
+			Help: "Total number of chunk block propose not enough",
+		}),
 	}
 }
 
 // TryProposeChunk tries to propose a new chunk.
 func (p *ChunkProposer) TryProposeChunk() {
+	p.chunkProposerCircleTotal.Inc()
 	proposedChunk, err := p.proposeChunk()
 	if err != nil {
+		p.proposeChunkFailureTotal.Inc()
 		log.Error("propose new chunk failed", "err", err)
 		return
 	}
 
 	if err := p.updateChunkInfoInDB(proposedChunk); err != nil {
+		p.proposeChunkUpdateInfoFailureTotal.Inc()
 		log.Error("update chunk info in orm failed", "err", err)
 	}
 }
@@ -95,9 +169,11 @@ func (p *ChunkProposer) updateChunkInfoInDB(chunk *types.Chunk) error {
 		return nil
 	}
 
+	p.proposeChunkUpdateInfoTotal.Inc()
 	err := p.db.Transaction(func(dbTX *gorm.DB) error {
 		dbChunk, err := p.chunkOrm.InsertChunk(p.ctx, chunk, dbTX)
 		if err != nil {
+			log.Warn("ChunkProposer.InsertChunk failed", "chunk hash", chunk.Hash)
 			return err
 		}
 		if err := p.l2BlockOrm.UpdateChunkHashInRange(p.ctx, dbChunk.StartBlockNumber, dbChunk.EndBlockNumber, dbChunk.Hash, dbTX); err != nil {
@@ -110,7 +186,12 @@ func (p *ChunkProposer) updateChunkInfoInDB(chunk *types.Chunk) error {
 }
 
 func (p *ChunkProposer) proposeChunk() (*types.Chunk, error) {
-	blocks, err := p.l2BlockOrm.GetUnchunkedBlocks(p.ctx)
+	unchunkedBlockHeight, err := p.chunkOrm.GetUnchunkedBlockHeight(p.ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	blocks, err := p.l2BlockOrm.GetL2WrappedBlocksGEHeight(p.ctx, unchunkedBlockHeight, maxNumBlockPerChunk)
 	if err != nil {
 		return nil, err
 	}
@@ -119,88 +200,98 @@ func (p *ChunkProposer) proposeChunk() (*types.Chunk, error) {
 		return nil, nil
 	}
 
-	chunk := &types.Chunk{Blocks: blocks[:1]}
-	firstBlock := chunk.Blocks[0]
-	totalTxGasUsed := firstBlock.Header.GasUsed
-	totalL2TxNum := firstBlock.L2TxsNum()
-	totalL1CommitCalldataSize := firstBlock.EstimateL1CommitCalldataSize()
+	var chunk types.Chunk
+	var totalTxGasUsed uint64
+	var totalTxNum uint64
+	var totalL1CommitCalldataSize uint64
+	var totalL1CommitGas uint64
 	crc := chunkRowConsumption{}
-	totalL1CommitGas := chunk.EstimateL1CommitGas()
 
-	if err := crc.add(firstBlock.RowConsumption); err != nil {
-		return nil, fmt.Errorf("chunk-proposer failed to update chunk row consumption: %v", err)
-	}
+	for i, block := range blocks {
+		// metric values
+		lastTotalTxNum := totalTxNum
+		lastTotalL1CommitGas := totalL1CommitGas
+		lastCrcMax := crc.max()
+		lastTotalL1CommitCalldataSize := totalL1CommitCalldataSize
+		lastTotalTxGasUsed := totalTxGasUsed
 
-	// Check if the first block breaks hard limits.
-	// If so, it indicates there are bugs in sequencer, manual fix is needed.
-	if totalL2TxNum > p.maxL2TxNumPerChunk {
-		return nil, fmt.Errorf(
-			"the first block exceeds l2 tx number limit; block number: %v, number of transactions: %v, max transaction number limit: %v",
-			firstBlock.Header.Number,
-			totalL2TxNum,
-			p.maxL2TxNumPerChunk,
-		)
-	}
-
-	if p.gasCostIncreaseMultiplier*float64(totalL1CommitGas) > float64(p.maxL1CommitGasPerChunk) {
-		return nil, fmt.Errorf(
-			"the first block exceeds l1 commit gas limit; block number: %v, commit gas: %v, max commit gas limit: %v",
-			firstBlock.Header.Number,
-			totalL1CommitGas,
-			p.maxL1CommitGasPerChunk,
-		)
-	}
-
-	if totalL1CommitCalldataSize > p.maxL1CommitCalldataSizePerChunk {
-		return nil, fmt.Errorf(
-			"the first block exceeds l1 commit calldata size limit; block number: %v, calldata size: %v, max calldata size limit: %v",
-			firstBlock.Header.Number,
-			totalL1CommitCalldataSize,
-			p.maxL1CommitCalldataSizePerChunk,
-		)
-	}
-
-	// Check if the first block breaks any soft limits.
-	if totalTxGasUsed > p.maxTxGasPerChunk {
-		log.Warn(
-			"The first block in chunk exceeds l2 tx gas limit",
-			"block number", firstBlock.Header.Number,
-			"gas used", totalTxGasUsed,
-			"max gas limit", p.maxTxGasPerChunk,
-		)
-	}
-	if max := crc.max(); max > p.maxRowConsumptionPerChunk {
-		return nil, fmt.Errorf(
-			"the first block exceeds row consumption limit; block number: %v, row consumption: %v, max: %v, limit: %v",
-			firstBlock.Header.Number,
-			crc,
-			max,
-			p.maxRowConsumptionPerChunk,
-		)
-	}
-
-	for _, block := range blocks[1:] {
-		chunk.Blocks = append(chunk.Blocks, block)
 		totalTxGasUsed += block.Header.GasUsed
-		totalL2TxNum += block.L2TxsNum()
+		totalTxNum += uint64(len(block.Transactions))
 		totalL1CommitCalldataSize += block.EstimateL1CommitCalldataSize()
 		totalL1CommitGas = chunk.EstimateL1CommitGas()
-
+		totalOverEstimateL1CommitGas := uint64(p.gasCostIncreaseMultiplier * float64(totalL1CommitGas))
 		if err := crc.add(block.RowConsumption); err != nil {
 			return nil, fmt.Errorf("chunk-proposer failed to update chunk row consumption: %v", err)
 		}
+		crcMax := crc.max()
 
-		if totalTxGasUsed > p.maxTxGasPerChunk ||
-			totalL2TxNum > p.maxL2TxNumPerChunk ||
+		if totalTxNum > p.maxTxNumPerChunk ||
 			totalL1CommitCalldataSize > p.maxL1CommitCalldataSizePerChunk ||
-			p.gasCostIncreaseMultiplier*float64(totalL1CommitGas) > float64(p.maxL1CommitGasPerChunk) ||
-			crc.max() > p.maxRowConsumptionPerChunk {
-			chunk.Blocks = chunk.Blocks[:len(chunk.Blocks)-1] // remove the last block from chunk
-			break
+			totalOverEstimateL1CommitGas > p.maxL1CommitGasPerChunk ||
+			crcMax > p.maxRowConsumptionPerChunk {
+			// Check if the first block breaks hard limits.
+			// If so, it indicates there are bugs in sequencer, manual fix is needed.
+			if i == 0 {
+				if totalTxNum > p.maxTxNumPerChunk {
+					return nil, fmt.Errorf(
+						"the first block exceeds l2 tx number limit; block number: %v, number of transactions: %v, max transaction number limit: %v",
+						block.Header.Number,
+						totalTxNum,
+						p.maxTxNumPerChunk,
+					)
+				}
+
+				if totalOverEstimateL1CommitGas > p.maxL1CommitGasPerChunk {
+					return nil, fmt.Errorf(
+						"the first block exceeds l1 commit gas limit; block number: %v, commit gas: %v, max commit gas limit: %v",
+						block.Header.Number,
+						totalL1CommitGas,
+						p.maxL1CommitGasPerChunk,
+					)
+				}
+
+				if totalL1CommitCalldataSize > p.maxL1CommitCalldataSizePerChunk {
+					return nil, fmt.Errorf(
+						"the first block exceeds l1 commit calldata size limit; block number: %v, calldata size: %v, max calldata size limit: %v",
+						block.Header.Number,
+						totalL1CommitCalldataSize,
+						p.maxL1CommitCalldataSizePerChunk,
+					)
+				}
+
+				if crcMax > p.maxRowConsumptionPerChunk {
+					return nil, fmt.Errorf(
+						"the first block exceeds row consumption limit; block number: %v, row consumption: %v, max: %v, limit: %v",
+						block.Header.Number,
+						crc,
+						crcMax,
+						p.maxRowConsumptionPerChunk,
+					)
+				}
+			}
+
+			log.Debug("breaking limit condition in chunking",
+				"totalTxNum", totalTxNum,
+				"maxTxNumPerChunk", p.maxTxNumPerChunk,
+				"currentL1CommitCalldataSize", totalL1CommitCalldataSize,
+				"maxL1CommitCalldataSizePerChunk", p.maxL1CommitCalldataSizePerChunk,
+				"currentOverEstimateL1CommitGas", totalOverEstimateL1CommitGas,
+				"maxL1CommitGasPerChunk", p.maxL1CommitGasPerChunk,
+				"chunkRowConsumptionMax", crcMax,
+				"chunkRowConsumption", crc,
+				"p.maxRowConsumptionPerChunk", p.maxRowConsumptionPerChunk)
+
+			p.chunkTxNum.Set(float64(lastTotalTxNum))
+			p.chunkEstimateL1CommitGas.Set(float64(lastTotalL1CommitGas))
+			p.totalL1CommitCalldataSize.Set(float64(lastTotalL1CommitCalldataSize))
+			p.maxTxConsumption.Set(float64(lastCrcMax))
+			p.totalTxGasUsed.Set(float64(lastTotalTxGasUsed))
+			p.chunkBlocksNum.Set(float64(len(chunk.Blocks)))
+			return &chunk, nil
 		}
+		chunk.Blocks = append(chunk.Blocks, block)
 	}
 
-	var hasBlockTimeout bool
 	currentTimeSec := uint64(time.Now().Unix())
 	if blocks[0].Header.Time+p.chunkTimeoutSec < currentTimeSec {
 		log.Warn("first block timeout",
@@ -208,15 +299,17 @@ func (p *ChunkProposer) proposeChunk() (*types.Chunk, error) {
 			"block timestamp", blocks[0].Header.Time,
 			"block outdated time threshold", currentTimeSec,
 		)
-		hasBlockTimeout = true
+		p.chunkFirstBlockTimeoutReached.Inc()
+		p.chunkTxNum.Set(float64(totalTxNum))
+		p.chunkEstimateL1CommitGas.Set(float64(totalL1CommitGas))
+		p.totalL1CommitCalldataSize.Set(float64(totalL1CommitCalldataSize))
+		p.maxTxConsumption.Set(float64(crc.max()))
+		p.totalTxGasUsed.Set(float64(totalTxGasUsed))
+		p.chunkBlocksNum.Set(float64(len(chunk.Blocks)))
+		return &chunk, nil
 	}
 
-	if !hasBlockTimeout && totalL1CommitCalldataSize < p.minL1CommitCalldataSizePerChunk {
-		log.Warn("The calldata size of the chunk is less than the minimum limit",
-			"totalL1CommitCalldataSize", totalL1CommitCalldataSize,
-			"minL1CommitCalldataSizePerChunk", p.minL1CommitCalldataSizePerChunk,
-		)
-		return nil, nil
-	}
-	return chunk, nil
+	log.Debug("pending blocks do not reach one of the constraints or contain a timeout block")
+	p.chunkBlocksProposeNotEnoughTotal.Inc()
+	return nil, nil
 }

bridge/internal/controller/watcher/chunk_proposer_test.go

@@ -23,14 +23,12 @@ func testChunkProposer(t *testing.T) {
 	assert.NoError(t, err)
 
 	cp := NewChunkProposer(context.Background(), &config.ChunkProposerConfig{
-		MaxTxGasPerChunk:                1000000000,
-		MaxL2TxNumPerChunk:              10000,
+		MaxTxNumPerChunk:                10000,
 		MaxL1CommitGasPerChunk:          50000000000,
 		MaxL1CommitCalldataSizePerChunk: 1000000,
-		MinL1CommitCalldataSizePerChunk: 0,
 		MaxRowConsumptionPerChunk:       1048319,
 		ChunkTimeoutSec:                 300,
-	}, db)
+	}, db, nil)
 	cp.TryProposeChunk()
 
 	expectedChunk := &types.Chunk{
@@ -40,7 +38,7 @@ func testChunkProposer(t *testing.T) {
 	assert.NoError(t, err)
 
 	chunkOrm := orm.NewChunk(db)
-	chunks, err := chunkOrm.GetUnbatchedChunks(context.Background())
+	chunks, err := chunkOrm.GetChunksGEIndex(context.Background(), 0, 0)
 	assert.NoError(t, err)
 	assert.Len(t, chunks, 1)
 	assert.Equal(t, expectedHash.Hex(), chunks[0].Hash)
@@ -55,18 +53,16 @@ func testChunkProposerRowConsumption(t *testing.T) {
 	assert.NoError(t, err)
 
 	cp := NewChunkProposer(context.Background(), &config.ChunkProposerConfig{
-		MaxTxGasPerChunk:                1000000000,
-		MaxL2TxNumPerChunk:              10000,
+		MaxTxNumPerChunk:                10000,
 		MaxL1CommitGasPerChunk:          50000000000,
 		MaxL1CommitCalldataSizePerChunk: 1000000,
-		MinL1CommitCalldataSizePerChunk: 0,
 		MaxRowConsumptionPerChunk:       0, // !
 		ChunkTimeoutSec:                 300,
-	}, db)
+	}, db, nil)
 	cp.TryProposeChunk()
 
 	chunkOrm := orm.NewChunk(db)
-	chunks, err := chunkOrm.GetUnbatchedChunks(context.Background())
+	chunks, err := chunkOrm.GetChunksGEIndex(context.Background(), 0, 0)
 	assert.NoError(t, err)
 	assert.Len(t, chunks, 0)
 }

bridge/internal/controller/watcher/l1_watcher.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"math/big"
 
+	"github.com/prometheus/client_golang/prometheus"
 	geth "github.com/scroll-tech/go-ethereum"
 	"github.com/scroll-tech/go-ethereum/accounts/abi"
 	"github.com/scroll-tech/go-ethereum/common"
@@ -11,11 +12,9 @@ import (
 	"github.com/scroll-tech/go-ethereum/crypto"
 	"github.com/scroll-tech/go-ethereum/ethclient"
 	"github.com/scroll-tech/go-ethereum/log"
-	gethMetrics "github.com/scroll-tech/go-ethereum/metrics"
 	"github.com/scroll-tech/go-ethereum/rpc"
 	"gorm.io/gorm"
 
-	"scroll-tech/common/metrics"
 	"scroll-tech/common/types"
 
 	bridgeAbi "scroll-tech/bridge/abi"
@@ -23,12 +22,6 @@ import (
 	"scroll-tech/bridge/internal/utils"
 )
 
-var (
-	bridgeL1MsgsSyncHeightGauge          = gethMetrics.NewRegisteredGauge("bridge/l1/msgs/sync/height", metrics.ScrollRegistry)
-	bridgeL1MsgsSentEventsTotalCounter   = gethMetrics.NewRegisteredCounter("bridge/l1/msgs/sent/events/total", metrics.ScrollRegistry)
-	bridgeL1MsgsRollupEventsTotalCounter = gethMetrics.NewRegisteredCounter("bridge/l1/msgs/rollup/events/total", metrics.ScrollRegistry)
-)
-
 type rollupEvent struct {
 	batchHash common.Hash
 	txHash    common.Hash
@@ -59,10 +52,12 @@ type L1WatcherClient struct {
 	processedMsgHeight uint64
 	// The height of the block that the watcher has retrieved header rlp
 	processedBlockHeight uint64
+
+	metrics *l1WatcherMetrics
 }
 
 // NewL1WatcherClient returns a new instance of L1WatcherClient.
-func NewL1WatcherClient(ctx context.Context, client *ethclient.Client, startHeight uint64, confirmations rpc.BlockNumber, messengerAddress, messageQueueAddress, scrollChainAddress common.Address, db *gorm.DB) *L1WatcherClient {
+func NewL1WatcherClient(ctx context.Context, client *ethclient.Client, startHeight uint64, confirmations rpc.BlockNumber, messengerAddress, messageQueueAddress, scrollChainAddress common.Address, db *gorm.DB, reg prometheus.Registerer) *L1WatcherClient {
 	l1MessageOrm := orm.NewL1Message(db)
 	savedHeight, err := l1MessageOrm.GetLayer1LatestWatchedHeight()
 	if err != nil {
@@ -102,6 +97,7 @@ func NewL1WatcherClient(ctx context.Context, client *ethclient.Client, startHeig
 
 		processedMsgHeight:   uint64(savedHeight),
 		processedBlockHeight: savedL1BlockHeight,
+		metrics:              initL1WatcherMetrics(reg),
 	}
 }
 
@@ -125,6 +121,7 @@ func (w *L1WatcherClient) SetConfirmations(confirmations rpc.BlockNumber) {
 
 // FetchBlockHeader pull latest L1 blocks and save in DB
 func (w *L1WatcherClient) FetchBlockHeader(blockHeight uint64) error {
+	w.metrics.l1WatcherFetchBlockHeaderTotal.Inc()
 	fromBlock := int64(w.processedBlockHeight) + 1
 	toBlock := int64(blockHeight)
 	if toBlock < fromBlock {
@@ -171,6 +168,7 @@ func (w *L1WatcherClient) FetchBlockHeader(blockHeight uint64) error {
 
 	// update processed height
 	w.processedBlockHeight = uint64(toBlock)
+	w.metrics.l1WatcherFetchBlockHeaderProcessedBlockHeight.Set(float64(w.processedBlockHeight))
 	return nil
 }
 
@@ -189,6 +187,7 @@ func (w *L1WatcherClient) FetchContractEvent() error {
 	toBlock := int64(blockHeight)
 
 	for from := fromBlock; from <= toBlock; from += contractEventsBlocksFetchLimit {
+		w.metrics.l1WatcherFetchContractEventTotal.Inc()
 		to := from + contractEventsBlocksFetchLimit - 1
 
 		if to > toBlock {
@@ -220,9 +219,10 @@ func (w *L1WatcherClient) FetchContractEvent() error {
 		}
 		if len(logs) == 0 {
 			w.processedMsgHeight = uint64(to)
-			bridgeL1MsgsSyncHeightGauge.Update(to)
+			w.metrics.l1WatcherFetchContractEventProcessedBlockHeight.Set(float64(to))
 			continue
 		}
+
 		log.Info("Received new L1 events", "fromBlock", from, "toBlock", to, "cnt", len(logs))
 
 		sentMessageEvents, rollupEvents, err := w.parseBridgeEventLogs(logs)
@@ -232,8 +232,8 @@ func (w *L1WatcherClient) FetchContractEvent() error {
 		}
 		sentMessageCount := int64(len(sentMessageEvents))
 		rollupEventCount := int64(len(rollupEvents))
-		bridgeL1MsgsSentEventsTotalCounter.Inc(sentMessageCount)
-		bridgeL1MsgsRollupEventsTotalCounter.Inc(rollupEventCount)
+		w.metrics.l1WatcherFetchContractEventSentEventsTotal.Add(float64(sentMessageCount))
+		w.metrics.l1WatcherFetchContractEventRollupEventsTotal.Add(float64(rollupEventCount))
 		log.Info("L1 events types", "SentMessageCount", sentMessageCount, "RollupEventCount", rollupEventCount)
 
 		// use rollup event to update rollup results db status
@@ -273,7 +273,8 @@ func (w *L1WatcherClient) FetchContractEvent() error {
 		}
 
 		w.processedMsgHeight = uint64(to)
-		bridgeL1MsgsSyncHeightGauge.Update(to)
+		w.metrics.l1WatcherFetchContractEventSuccessTotal.Inc()
+		w.metrics.l1WatcherFetchContractEventProcessedBlockHeight.Set(float64(w.processedMsgHeight))
 	}
 
 	return nil

bridge/internal/controller/watcher/l1_watcher_metrics.go

@@ -0,0 +1,59 @@
+package watcher
+
+import (
+	"sync"
+
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promauto"
+)
+
+type l1WatcherMetrics struct {
+	l1WatcherFetchBlockHeaderTotal                  prometheus.Counter
+	l1WatcherFetchBlockHeaderProcessedBlockHeight   prometheus.Gauge
+	l1WatcherFetchContractEventTotal                prometheus.Counter
+	l1WatcherFetchContractEventSuccessTotal         prometheus.Counter
+	l1WatcherFetchContractEventProcessedBlockHeight prometheus.Gauge
+	l1WatcherFetchContractEventSentEventsTotal      prometheus.Counter
+	l1WatcherFetchContractEventRollupEventsTotal    prometheus.Counter
+}
+
+var (
+	initL1WatcherMetricOnce sync.Once
+	l1WatcherMetric         *l1WatcherMetrics
+)
+
+func initL1WatcherMetrics(reg prometheus.Registerer) *l1WatcherMetrics {
+	initL1WatcherMetricOnce.Do(func() {
+		l1WatcherMetric = &l1WatcherMetrics{
+			l1WatcherFetchBlockHeaderTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+				Name: "bridge_l1_watcher_fetch_block_header_total",
+				Help: "The total number of l1 watcher fetch block header total",
+			}),
+			l1WatcherFetchBlockHeaderProcessedBlockHeight: promauto.With(reg).NewGauge(prometheus.GaugeOpts{
+				Name: "bridge_l1_watcher_fetch_block_header_processed_block_height",
+				Help: "The current processed block height of l1 watcher fetch block header",
+			}),
+			l1WatcherFetchContractEventTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+				Name: "bridge_l1_watcher_fetch_block_contract_event_total",
+				Help: "The total number of l1 watcher fetch contract event total",
+			}),
+			l1WatcherFetchContractEventSuccessTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+				Name: "bridge_l1_watcher_fetch_block_contract_event_success_total",
+				Help: "The total number of l1 watcher fetch contract event success total",
+			}),
+			l1WatcherFetchContractEventProcessedBlockHeight: promauto.With(reg).NewGauge(prometheus.GaugeOpts{
+				Name: "bridge_l1_watcher_fetch_block_contract_event_processed_block_height",
+				Help: "The current processed block height of l1 watcher fetch contract event",
+			}),
+			l1WatcherFetchContractEventSentEventsTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+				Name: "bridge_l1_watcher_fetch_block_contract_event_sent_event_total",
+				Help: "The current processed block height of l1 watcher fetch contract sent event",
+			}),
+			l1WatcherFetchContractEventRollupEventsTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+				Name: "bridge_l1_watcher_fetch_block_contract_event_rollup_event_total",
+				Help: "The current processed block height of l1 watcher fetch contract rollup event",
+			}),
+		}
+	})
+	return l1WatcherMetric
+}

bridge/internal/controller/watcher/l1_watcher_test.go

@@ -30,7 +30,8 @@ func setupL1Watcher(t *testing.T) (*L1WatcherClient, *gorm.DB) {
 	client, err := ethclient.Dial(base.L1gethImg.Endpoint())
 	assert.NoError(t, err)
 	l1Cfg := cfg.L1Config
-	watcher := NewL1WatcherClient(context.Background(), client, l1Cfg.StartHeight, l1Cfg.Confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.RelayerConfig.RollupContractAddress, db)
+	watcher := NewL1WatcherClient(context.Background(), client, l1Cfg.StartHeight, l1Cfg.Confirmations, l1Cfg.L1MessengerAddress,
+		l1Cfg.L1MessageQueueAddress, l1Cfg.RelayerConfig.RollupContractAddress, db, nil)
 	assert.NoError(t, watcher.FetchContractEvent())
 	return watcher, db
 }

bridge/internal/controller/watcher/l2_watcher.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"math/big"
 
+	"github.com/prometheus/client_golang/prometheus"
 	geth "github.com/scroll-tech/go-ethereum"
 	"github.com/scroll-tech/go-ethereum/accounts/abi"
 	"github.com/scroll-tech/go-ethereum/common"
@@ -13,11 +14,9 @@ import (
 	"github.com/scroll-tech/go-ethereum/ethclient"
 	"github.com/scroll-tech/go-ethereum/event"
 	"github.com/scroll-tech/go-ethereum/log"
-	gethMetrics "github.com/scroll-tech/go-ethereum/metrics"
 	"github.com/scroll-tech/go-ethereum/rpc"
 	"gorm.io/gorm"
 
-	"scroll-tech/common/metrics"
 	"scroll-tech/common/types"
 
 	bridgeAbi "scroll-tech/bridge/abi"
@@ -25,14 +24,6 @@ import (
 	"scroll-tech/bridge/internal/utils"
 )
 
-// Metrics
-var (
-	bridgeL2MsgsSyncHeightGauge           = gethMetrics.NewRegisteredGauge("bridge/l2/msgs/sync/height", metrics.ScrollRegistry)
-	bridgeL2BlocksFetchedHeightGauge      = gethMetrics.NewRegisteredGauge("bridge/l2/blocks/fetched/height", metrics.ScrollRegistry)
-	bridgeL2BlocksFetchedGapGauge         = gethMetrics.NewRegisteredGauge("bridge/l2/blocks/fetched/gap", metrics.ScrollRegistry)
-	bridgeL2MsgsRelayedEventsTotalCounter = gethMetrics.NewRegisteredCounter("bridge/l2/msgs/relayed/events/total", metrics.ScrollRegistry)
-)
-
 // L2WatcherClient provide APIs which support others to subscribe to various event from l2geth
 type L2WatcherClient struct {
 	ctx context.Context
@@ -56,10 +47,12 @@ type L2WatcherClient struct {
 	processedMsgHeight uint64
 
 	stopped uint64
+
+	metrics *l2WatcherMetrics
 }
 
 // NewL2WatcherClient take a l2geth instance to generate a l2watcherclient instance
-func NewL2WatcherClient(ctx context.Context, client *ethclient.Client, confirmations rpc.BlockNumber, messengerAddress, messageQueueAddress common.Address, withdrawTrieRootSlot common.Hash, db *gorm.DB) *L2WatcherClient {
+func NewL2WatcherClient(ctx context.Context, client *ethclient.Client, confirmations rpc.BlockNumber, messengerAddress, messageQueueAddress common.Address, withdrawTrieRootSlot common.Hash, db *gorm.DB, reg prometheus.Registerer) *L2WatcherClient {
 	l1MessageOrm := orm.NewL1Message(db)
 	var savedHeight uint64
 	l1msg, err := l1MessageOrm.GetLayer1LatestMessageWithLayer2Hash()
@@ -93,6 +86,7 @@ func NewL2WatcherClient(ctx context.Context, client *ethclient.Client, confirmat
 		withdrawTrieRootSlot: withdrawTrieRootSlot,
 
 		stopped: 0,
+		metrics: initL2WatcherMetrics(reg),
 	}
 
 	return &w
@@ -102,6 +96,7 @@ const blockTracesFetchLimit = uint64(10)
 
 // TryFetchRunningMissingBlocks attempts to fetch and store block traces for any missing blocks.
 func (w *L2WatcherClient) TryFetchRunningMissingBlocks(blockHeight uint64) {
+	w.metrics.fetchRunningMissingBlocksTotal.Inc()
 	heightInDB, err := w.l2BlockOrm.GetL2BlocksLatestHeight(w.ctx)
 	if err != nil {
 		log.Error("failed to GetL2BlocksLatestHeight", "err", err)
@@ -120,8 +115,8 @@ func (w *L2WatcherClient) TryFetchRunningMissingBlocks(blockHeight uint64) {
 			log.Error("fail to getAndStoreBlockTraces", "from", from, "to", to, "err", err)
 			return
 		}
-		bridgeL2BlocksFetchedHeightGauge.Update(int64(to))
-		bridgeL2BlocksFetchedGapGauge.Update(int64(blockHeight - to))
+		w.metrics.fetchRunningMissingBlocksHeight.Set(float64(to))
+		w.metrics.bridgeL2BlocksFetchedGap.Set(float64(blockHeight - to))
 	}
 }
 
@@ -199,6 +194,7 @@ func (w *L2WatcherClient) FetchContractEvent() {
 		log.Info("l2 watcher fetchContractEvent", "w.processedMsgHeight", w.processedMsgHeight)
 	}()
 
+	w.metrics.fetchContractEventTotal.Inc()
 	blockHeight, err := utils.GetLatestConfirmedBlockNumber(w.ctx, w.Client, w.confirmations)
 	if err != nil {
 		log.Error("failed to get block number", "err", err)
@@ -238,7 +234,7 @@ func (w *L2WatcherClient) FetchContractEvent() {
 		}
 		if len(logs) == 0 {
 			w.processedMsgHeight = uint64(to)
-			bridgeL2MsgsSyncHeightGauge.Update(to)
+			w.metrics.fetchContractEventHeight.Set(float64(to))
 			continue
 		}
 		log.Info("received new L2 messages", "fromBlock", from, "toBlock", to, "cnt", len(logs))
@@ -250,7 +246,7 @@ func (w *L2WatcherClient) FetchContractEvent() {
 		}
 
 		relayedMessageCount := int64(len(relayedMessageEvents))
-		bridgeL2MsgsRelayedEventsTotalCounter.Inc(relayedMessageCount)
+		w.metrics.bridgeL2MsgsRelayedEventsTotal.Add(float64(relayedMessageCount))
 		log.Info("L2 events types", "RelayedMessageCount", relayedMessageCount)
 
 		// Update relayed message first to make sure we don't forget to update submited message.
@@ -269,7 +265,7 @@ func (w *L2WatcherClient) FetchContractEvent() {
 		}
 
 		w.processedMsgHeight = uint64(to)
-		bridgeL2MsgsSyncHeightGauge.Update(to)
+		w.metrics.fetchContractEventHeight.Set(float64(to))
 	}
 }
 

bridge/internal/controller/watcher/l2_watcher_metrics.go

@@ -0,0 +1,54 @@
+package watcher
+
+import (
+	"sync"
+
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promauto"
+)
+
+type l2WatcherMetrics struct {
+	fetchRunningMissingBlocksTotal  prometheus.Counter
+	fetchRunningMissingBlocksHeight prometheus.Gauge
+	fetchContractEventTotal         prometheus.Counter
+	fetchContractEventHeight        prometheus.Gauge
+	bridgeL2MsgsRelayedEventsTotal  prometheus.Counter
+	bridgeL2BlocksFetchedGap        prometheus.Gauge
+}
+
+var (
+	initL2WatcherMetricOnce sync.Once
+	l2WatcherMetric         *l2WatcherMetrics
+)
+
+func initL2WatcherMetrics(reg prometheus.Registerer) *l2WatcherMetrics {
+	initL2WatcherMetricOnce.Do(func() {
+		l2WatcherMetric = &l2WatcherMetrics{
+			fetchRunningMissingBlocksTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+				Name: "bridge_l2_watcher_fetch_running_missing_blocks_total",
+				Help: "The total number of l2 watcher fetch running missing blocks",
+			}),
+			fetchRunningMissingBlocksHeight: promauto.With(reg).NewGauge(prometheus.GaugeOpts{
+				Name: "bridge_l2_watcher_fetch_running_missing_blocks_height",
+				Help: "The total number of l2 watcher fetch running missing blocks height",
+			}),
+			fetchContractEventTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+				Name: "bridge_l2_watcher_fetch_contract_events_total",
+				Help: "The total number of l2 watcher fetch contract events",
+			}),
+			fetchContractEventHeight: promauto.With(reg).NewGauge(prometheus.GaugeOpts{
+				Name: "bridge_l2_watcher_fetch_contract_height",
+				Help: "The total number of l2 watcher fetch contract height",
+			}),
+			bridgeL2MsgsRelayedEventsTotal: promauto.With(reg).NewCounter(prometheus.CounterOpts{
+				Name: "bridge_l2_watcher_msg_relayed_events_total",
+				Help: "The total number of l2 watcher msg relayed event",
+			}),
+			bridgeL2BlocksFetchedGap: promauto.With(reg).NewGauge(prometheus.GaugeOpts{
+				Name: "bridge_l2_watcher_blocks_fetched_gap",
+				Help: "The gap of l2 fetch",
+			}),
+		}
+	})
+	return l2WatcherMetric
+}

bridge/internal/controller/watcher/l2_watcher_test.go

@@ -34,7 +34,8 @@ import (
 func setupL2Watcher(t *testing.T) (*L2WatcherClient, *gorm.DB) {
 	db := setupDB(t)
 	l2cfg := cfg.L2Config
-	watcher := NewL2WatcherClient(context.Background(), l2Cli, l2cfg.Confirmations, l2cfg.L2MessengerAddress, l2cfg.L2MessageQueueAddress, l2cfg.WithdrawTrieRootSlot, db)
+	watcher := NewL2WatcherClient(context.Background(), l2Cli, l2cfg.Confirmations, l2cfg.L2MessengerAddress,
+		l2cfg.L2MessageQueueAddress, l2cfg.WithdrawTrieRootSlot, db, nil)
 	return watcher, db
 }
 
@@ -50,7 +51,7 @@ func testCreateNewWatcherAndStop(t *testing.T) {
 
 	l1cfg := cfg.L1Config
 	l1cfg.RelayerConfig.SenderConfig.Confirmations = rpc.LatestBlockNumber
-	newSender, err := sender.NewSender(context.Background(), l1cfg.RelayerConfig.SenderConfig, l1cfg.RelayerConfig.MessageSenderPrivateKey)
+	newSender, err := sender.NewSender(context.Background(), l1cfg.RelayerConfig.SenderConfig, l1cfg.RelayerConfig.MessageSenderPrivateKey, "test", "test", nil)
 	assert.NoError(t, err)
 
 	// Create several transactions and commit to block
@@ -95,7 +96,7 @@ func testFetchRunningMissingBlocks(t *testing.T) {
 
 func prepareWatcherClient(l2Cli *ethclient.Client, db *gorm.DB, contractAddr common.Address) *L2WatcherClient {
 	confirmations := rpc.LatestBlockNumber
-	return NewL2WatcherClient(context.Background(), l2Cli, confirmations, contractAddr, contractAddr, common.Hash{}, db)
+	return NewL2WatcherClient(context.Background(), l2Cli, confirmations, contractAddr, contractAddr, common.Hash{}, db, nil)
 }
 
 func prepareAuth(t *testing.T, l2Cli *ethclient.Client, privateKey *ecdsa.PrivateKey) *bind.TransactOpts {

bridge/internal/orm/batch.go

@@ -53,9 +53,11 @@ type Batch struct {
 	OracleTxHash string `json:"oracle_tx_hash" gorm:"column:oracle_tx_hash;default:NULL"`
 
 	// metadata
-	CreatedAt time.Time      `json:"created_at" gorm:"column:created_at"`
-	UpdatedAt time.Time      `json:"updated_at" gorm:"column:updated_at"`
-	DeletedAt gorm.DeletedAt `json:"deleted_at" gorm:"column:deleted_at;default:NULL"`
+	TotalL1CommitGas          uint64         `json:"total_l1_commit_gas" gorm:"column:total_l1_commit_gas;default:0"`
+	TotalL1CommitCalldataSize uint32         `json:"total_l1_commit_calldata_size" gorm:"column:total_l1_commit_calldata_size;default:0"`
+	CreatedAt                 time.Time      `json:"created_at" gorm:"column:created_at"`
+	UpdatedAt                 time.Time      `json:"updated_at" gorm:"column:updated_at"`
+	DeletedAt                 gorm.DeletedAt `json:"deleted_at" gorm:"column:deleted_at;default:NULL"`
 }
 
 // NewBatch creates a new Batch database instance.
@@ -142,6 +144,21 @@ func (o *Batch) GetLatestBatch(ctx context.Context) (*Batch, error) {
 	return &latestBatch, nil
 }
 
+// GetFirstUnbatchedChunkIndex retrieves the first unbatched chunk index.
+func (o *Batch) GetFirstUnbatchedChunkIndex(ctx context.Context) (uint64, error) {
+	// Get the latest batch
+	latestBatch, err := o.GetLatestBatch(ctx)
+	if err != nil {
+		return 0, fmt.Errorf("Chunk.GetChunkedBlockHeight error: %w", err)
+	}
+	// if parentBatch==nil then err==gorm.ErrRecordNotFound,
+	// which means there is not batched chunk yet, thus returns 0
+	if latestBatch == nil {
+		return 0, nil
+	}
+	return latestBatch.EndChunkIndex + 1, nil
+}
+
 // GetRollupStatusByHashList retrieves the rollup statuses for a list of batch hashes.
 func (o *Batch) GetRollupStatusByHashList(ctx context.Context, hashes []string) ([]types.RollupStatus, error) {
 	if len(hashes) == 0 {
@@ -209,7 +226,7 @@ func (o *Batch) GetBatchByIndex(ctx context.Context, index uint64) (*Batch, erro
 }
 
 // InsertBatch inserts a new batch into the database.
-func (o *Batch) InsertBatch(ctx context.Context, startChunkIndex, endChunkIndex uint64, startChunkHash, endChunkHash string, chunks []*types.Chunk, dbTX ...*gorm.DB) (*Batch, error) {
+func (o *Batch) InsertBatch(ctx context.Context, chunks []*types.Chunk, batchMeta *types.BatchMeta, dbTX ...*gorm.DB) (*Batch, error) {
 	if len(chunks) == 0 {
 		return nil, errors.New("invalid args")
 	}
@@ -255,20 +272,22 @@ func (o *Batch) InsertBatch(ctx context.Context, startChunkIndex, endChunkIndex
 	lastChunkBlockNum := len(chunks[numChunks-1].Blocks)
 
 	newBatch := Batch{
-		Index:             batchIndex,
-		Hash:              batchHeader.Hash().Hex(),
-		StartChunkHash:    startChunkHash,
-		StartChunkIndex:   startChunkIndex,
-		EndChunkHash:      endChunkHash,
-		EndChunkIndex:     endChunkIndex,
-		StateRoot:         chunks[numChunks-1].Blocks[lastChunkBlockNum-1].Header.Root.Hex(),
-		WithdrawRoot:      chunks[numChunks-1].Blocks[lastChunkBlockNum-1].WithdrawRoot.Hex(),
-		ParentBatchHash:   parentBatchHash.Hex(),
-		BatchHeader:       batchHeader.Encode(),
-		ChunkProofsStatus: int16(types.ChunkProofsStatusPending),
-		ProvingStatus:     int16(types.ProvingTaskUnassigned),
-		RollupStatus:      int16(types.RollupPending),
-		OracleStatus:      int16(types.GasOraclePending),
+		Index:                     batchIndex,
+		Hash:                      batchHeader.Hash().Hex(),
+		StartChunkHash:            batchMeta.StartChunkHash,
+		StartChunkIndex:           batchMeta.StartChunkIndex,
+		EndChunkHash:              batchMeta.EndChunkHash,
+		EndChunkIndex:             batchMeta.EndChunkIndex,
+		StateRoot:                 chunks[numChunks-1].Blocks[lastChunkBlockNum-1].Header.Root.Hex(),
+		WithdrawRoot:              chunks[numChunks-1].Blocks[lastChunkBlockNum-1].WithdrawRoot.Hex(),
+		ParentBatchHash:           parentBatchHash.Hex(),
+		BatchHeader:               batchHeader.Encode(),
+		ChunkProofsStatus:         int16(types.ChunkProofsStatusPending),
+		ProvingStatus:             int16(types.ProvingTaskUnassigned),
+		RollupStatus:              int16(types.RollupPending),
+		OracleStatus:              int16(types.GasOraclePending),
+		TotalL1CommitGas:          batchMeta.TotalL1CommitGas,
+		TotalL1CommitCalldataSize: batchMeta.TotalL1CommitCalldataSize,
 	}
 
 	db := o.db
@@ -311,7 +330,7 @@ func (o *Batch) UpdateProvingStatus(ctx context.Context, hash string, status typ
 		updateFields["prover_assigned_at"] = time.Now()
 	case types.ProvingTaskUnassigned:
 		updateFields["prover_assigned_at"] = nil
-	case types.ProvingTaskProved, types.ProvingTaskVerified:
+	case types.ProvingTaskVerified:
 		updateFields["proved_at"] = time.Now()
 	}
 

bridge/internal/orm/chunk.go

@@ -87,20 +87,6 @@ func (o *Chunk) GetChunksInRange(ctx context.Context, startIndex uint64, endInde
 	return chunks, nil
 }
 
-// GetUnbatchedChunks retrieves unbatched chunks from the database.
-func (o *Chunk) GetUnbatchedChunks(ctx context.Context) ([]*Chunk, error) {
-	db := o.db.WithContext(ctx)
-	db = db.Model(&Chunk{})
-	db = db.Where("batch_hash IS NULL")
-	db = db.Order("index asc")
-
-	var chunks []*Chunk
-	if err := db.Find(&chunks).Error; err != nil {
-		return nil, fmt.Errorf("Chunk.GetUnbatchedChunks error: %w", err)
-	}
-	return chunks, nil
-}
-
 // GetLatestChunk retrieves the latest chunk from the database.
 func (o *Chunk) GetLatestChunk(ctx context.Context) (*Chunk, error) {
 	db := o.db.WithContext(ctx)
@@ -114,6 +100,40 @@ func (o *Chunk) GetLatestChunk(ctx context.Context) (*Chunk, error) {
 	return &latestChunk, nil
 }
 
+// GetUnchunkedBlockHeight retrieves the first unchunked block number.
+func (o *Chunk) GetUnchunkedBlockHeight(ctx context.Context) (uint64, error) {
+	// Get the latest chunk
+	latestChunk, err := o.GetLatestChunk(ctx)
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			// if there is no chunk, return block number 1,
+			// because no need to chunk genesis block number
+			return 1, nil
+		}
+		return 0, fmt.Errorf("Chunk.GetChunkedBlockHeight error: %w", err)
+	}
+	return latestChunk.EndBlockNumber + 1, nil
+}
+
+// GetChunksGEIndex retrieves chunks that have a chunk index greater than the or equal to the given index.
+// The returned chunks are sorted in ascending order by their index.
+func (o *Chunk) GetChunksGEIndex(ctx context.Context, index uint64, limit int) ([]*Chunk, error) {
+	db := o.db.WithContext(ctx)
+	db = db.Model(&Chunk{})
+	db = db.Where("index >= ?", index)
+	db = db.Order("index ASC")
+
+	if limit > 0 {
+		db = db.Limit(limit)
+	}
+
+	var chunks []*Chunk
+	if err := db.Find(&chunks).Error; err != nil {
+		return nil, fmt.Errorf("Chunk.GetChunksGEIndex error: %w", err)
+	}
+	return chunks, nil
+}
+
 // InsertChunk inserts a new chunk into the database.
 func (o *Chunk) InsertChunk(ctx context.Context, chunk *types.Chunk, dbTX ...*gorm.DB) (*Chunk, error) {
 	if chunk == nil || len(chunk.Blocks) == 0 {
@@ -151,7 +171,7 @@ func (o *Chunk) InsertChunk(ctx context.Context, chunk *types.Chunk, dbTX ...*go
 	var totalL1CommitCalldataSize uint64
 	for _, block := range chunk.Blocks {
 		totalL2TxGas += block.Header.GasUsed
-		totalL2TxNum += block.L2TxsNum()
+		totalL2TxNum += block.NumL2Transactions()
 		totalL1CommitCalldataSize += block.EstimateL1CommitCalldataSize()
 	}
 
@@ -201,7 +221,7 @@ func (o *Chunk) UpdateProvingStatus(ctx context.Context, hash string, status typ
 		updateFields["prover_assigned_at"] = time.Now()
 	case types.ProvingTaskUnassigned:
 		updateFields["prover_assigned_at"] = nil
-	case types.ProvingTaskProved, types.ProvingTaskVerified:
+	case types.ProvingTaskVerified:
 		updateFields["proved_at"] = time.Now()
 	}
 

bridge/internal/orm/l2_block.go

@@ -64,18 +64,23 @@ func (o *L2Block) GetL2BlocksLatestHeight(ctx context.Context) (uint64, error) {
 	return maxNumber, nil
 }
 
-// GetUnchunkedBlocks get the l2 blocks that have not been put into a chunk.
+// GetL2WrappedBlocksGEHeight retrieves L2 blocks that have a block number greater than or equal to the given height.
+// The blocks are converted into WrappedBlock format for output.
 // The returned blocks are sorted in ascending order by their block number.
-func (o *L2Block) GetUnchunkedBlocks(ctx context.Context) ([]*types.WrappedBlock, error) {
+func (o *L2Block) GetL2WrappedBlocksGEHeight(ctx context.Context, height uint64, limit int) ([]*types.WrappedBlock, error) {
 	db := o.db.WithContext(ctx)
 	db = db.Model(&L2Block{})
 	db = db.Select("header, transactions, withdraw_root, row_consumption")
-	db = db.Where("chunk_hash IS NULL")
+	db = db.Where("number >= ?", height)
 	db = db.Order("number ASC")
 
+	if limit > 0 {
+		db = db.Limit(limit)
+	}
+
 	var l2Blocks []L2Block
 	if err := db.Find(&l2Blocks).Error; err != nil {
-		return nil, fmt.Errorf("L2Block.GetUnchunkedBlocks error: %w", err)
+		return nil, fmt.Errorf("L2Block.GetL2WrappedBlocksGEHeight error: %w", err)
 	}
 
 	var wrappedBlocks []*types.WrappedBlock
@@ -83,18 +88,18 @@ func (o *L2Block) GetUnchunkedBlocks(ctx context.Context) ([]*types.WrappedBlock
 		var wrappedBlock types.WrappedBlock
 
 		if err := json.Unmarshal([]byte(v.Transactions), &wrappedBlock.Transactions); err != nil {
-			return nil, fmt.Errorf("L2Block.GetUnchunkedBlocks error: %w", err)
+			return nil, fmt.Errorf("L2Block.GetL2WrappedBlocksGEHeight error: %w", err)
 		}
 
 		wrappedBlock.Header = &gethTypes.Header{}
 		if err := json.Unmarshal([]byte(v.Header), wrappedBlock.Header); err != nil {
-			return nil, fmt.Errorf("L2Block.GetUnchunkedBlocks error: %w", err)
+			return nil, fmt.Errorf("L2Block.GetL2WrappedBlocksGEHeight error: %w", err)
 		}
 
 		wrappedBlock.WithdrawRoot = common.HexToHash(v.WithdrawRoot)
 
 		if err := json.Unmarshal([]byte(v.RowConsumption), &wrappedBlock.RowConsumption); err != nil {
-			return nil, fmt.Errorf("L2Block.GetUnchunkedBlocks error: %w", err)
+			return nil, fmt.Errorf("L2Block.GetL2WrappedBlocksGEHeight error: %w", err)
 		}
 
 		wrappedBlocks = append(wrappedBlocks, &wrappedBlock)

bridge/internal/orm/orm_test.go

@@ -101,25 +101,26 @@ func TestL2BlockOrm(t *testing.T) {
 	assert.NoError(t, err)
 	assert.Equal(t, uint64(3), height)
 
-	blocks, err := l2BlockOrm.GetUnchunkedBlocks(context.Background())
+	blocks, err := l2BlockOrm.GetL2Blocks(context.Background(), map[string]interface{}{}, []string{}, 0)
 	assert.NoError(t, err)
 	assert.Len(t, blocks, 2)
-	assert.Equal(t, wrappedBlock1, blocks[0])
-	assert.Equal(t, wrappedBlock2, blocks[1])
+	assert.Equal(t, "", blocks[0].ChunkHash)
+	assert.Equal(t, "", blocks[1].ChunkHash)
 
-	blocks, err = l2BlockOrm.GetL2BlocksInRange(context.Background(), 2, 3)
+	wrappedBlocks, err := l2BlockOrm.GetL2BlocksInRange(context.Background(), 2, 3)
 	assert.NoError(t, err)
 	assert.Len(t, blocks, 2)
-	assert.Equal(t, wrappedBlock1, blocks[0])
-	assert.Equal(t, wrappedBlock2, blocks[1])
+	assert.Equal(t, wrappedBlock1, wrappedBlocks[0])
+	assert.Equal(t, wrappedBlock2, wrappedBlocks[1])
 
 	err = l2BlockOrm.UpdateChunkHashInRange(context.Background(), 2, 2, "test hash")
 	assert.NoError(t, err)
 
-	blocks, err = l2BlockOrm.GetUnchunkedBlocks(context.Background())
+	blocks, err = l2BlockOrm.GetL2Blocks(context.Background(), map[string]interface{}{}, []string{}, 0)
 	assert.NoError(t, err)
-	assert.Len(t, blocks, 1)
-	assert.Equal(t, wrappedBlock2, blocks[0])
+	assert.Len(t, blocks, 2)
+	assert.Equal(t, "test hash", blocks[0].ChunkHash)
+	assert.Equal(t, "", blocks[1].ChunkHash)
 }
 
 func TestChunkOrm(t *testing.T) {
@@ -135,11 +136,13 @@ func TestChunkOrm(t *testing.T) {
 	assert.NoError(t, err)
 	assert.Equal(t, dbChunk2.Hash, chunkHash2.Hex())
 
-	chunks, err := chunkOrm.GetUnbatchedChunks(context.Background())
+	chunks, err := chunkOrm.GetChunksGEIndex(context.Background(), 0, 0)
 	assert.NoError(t, err)
 	assert.Len(t, chunks, 2)
 	assert.Equal(t, chunkHash1.Hex(), chunks[0].Hash)
 	assert.Equal(t, chunkHash2.Hex(), chunks[1].Hash)
+	assert.Equal(t, "", chunks[0].BatchHash)
+	assert.Equal(t, "", chunks[1].BatchHash)
 
 	err = chunkOrm.UpdateProvingStatus(context.Background(), chunkHash1.Hex(), types.ProvingTaskVerified)
 	assert.NoError(t, err)
@@ -156,9 +159,13 @@ func TestChunkOrm(t *testing.T) {
 
 	err = chunkOrm.UpdateBatchHashInRange(context.Background(), 0, 0, "test hash")
 	assert.NoError(t, err)
-	chunks, err = chunkOrm.GetUnbatchedChunks(context.Background())
+	chunks, err = chunkOrm.GetChunksGEIndex(context.Background(), 0, 0)
 	assert.NoError(t, err)
-	assert.Len(t, chunks, 1)
+	assert.Len(t, chunks, 2)
+	assert.Equal(t, chunkHash1.Hex(), chunks[0].Hash)
+	assert.Equal(t, chunkHash2.Hex(), chunks[1].Hash)
+	assert.Equal(t, "test hash", chunks[0].BatchHash)
+	assert.Equal(t, "", chunks[1].BatchHash)
 }
 
 func TestBatchOrm(t *testing.T) {
@@ -166,7 +173,13 @@ func TestBatchOrm(t *testing.T) {
 	assert.NoError(t, err)
 	assert.NoError(t, migrate.ResetDB(sqlDB))
 
-	batch1, err := batchOrm.InsertBatch(context.Background(), 0, 0, chunkHash1.Hex(), chunkHash1.Hex(), []*types.Chunk{chunk1})
+	batchMeta1 := &types.BatchMeta{
+		StartChunkIndex: 0,
+		StartChunkHash:  chunkHash1.Hex(),
+		EndChunkIndex:   0,
+		EndChunkHash:    chunkHash1.Hex(),
+	}
+	batch1, err := batchOrm.InsertBatch(context.Background(), []*types.Chunk{chunk1}, batchMeta1)
 	assert.NoError(t, err)
 	hash1 := batch1.Hash
 
@@ -177,7 +190,13 @@ func TestBatchOrm(t *testing.T) {
 	batchHash1 := batchHeader1.Hash().Hex()
 	assert.Equal(t, hash1, batchHash1)
 
-	batch2, err := batchOrm.InsertBatch(context.Background(), 1, 1, chunkHash2.Hex(), chunkHash2.Hex(), []*types.Chunk{chunk2})
+	batchMeta2 := &types.BatchMeta{
+		StartChunkIndex: 1,
+		StartChunkHash:  chunkHash2.Hex(),
+		EndChunkIndex:   1,
+		EndChunkHash:    chunkHash2.Hex(),
+	}
+	batch2, err := batchOrm.InsertBatch(context.Background(), []*types.Chunk{chunk2}, batchMeta2)
 	assert.NoError(t, err)
 	hash2 := batch2.Hash
 

bridge/tests/gas_oracle_test.go

@@ -26,13 +26,14 @@ func testImportL1GasPrice(t *testing.T) {
 	l1Cfg := bridgeApp.Config.L1Config
 
 	// Create L1Relayer
-	l1Relayer, err := relayer.NewLayer1Relayer(context.Background(), db, l1Cfg.RelayerConfig)
+	l1Relayer, err := relayer.NewLayer1Relayer(context.Background(), db, l1Cfg.RelayerConfig, nil)
 	assert.NoError(t, err)
 
 	// Create L1Watcher
 	startHeight, err := l1Client.BlockNumber(context.Background())
 	assert.NoError(t, err)
-	l1Watcher := watcher.NewL1WatcherClient(context.Background(), l1Client, startHeight-1, 0, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
+	l1Watcher := watcher.NewL1WatcherClient(context.Background(), l1Client, startHeight-1, 0,
+		l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db, nil)
 
 	// fetch new blocks
 	number, err := l1Client.BlockNumber(context.Background())
@@ -67,7 +68,7 @@ func testImportL2GasPrice(t *testing.T) {
 	prepareContracts(t)
 
 	l2Cfg := bridgeApp.Config.L2Config
-	l2Relayer, err := relayer.NewLayer2Relayer(context.Background(), l2Client, db, l2Cfg.RelayerConfig, false)
+	l2Relayer, err := relayer.NewLayer2Relayer(context.Background(), l2Client, db, l2Cfg.RelayerConfig, false, nil)
 	assert.NoError(t, err)
 
 	// add fake chunk
@@ -89,8 +90,14 @@ func testImportL2GasPrice(t *testing.T) {
 	chunkHash, err := chunk.Hash(0)
 	assert.NoError(t, err)
 
+	batchMeta := &types.BatchMeta{
+		StartChunkIndex: 0,
+		StartChunkHash:  chunkHash.Hex(),
+		EndChunkIndex:   0,
+		EndChunkHash:    chunkHash.Hex(),
+	}
 	batchOrm := orm.NewBatch(db)
-	_, err = batchOrm.InsertBatch(context.Background(), 0, 0, chunkHash.Hex(), chunkHash.Hex(), []*types.Chunk{chunk})
+	_, err = batchOrm.InsertBatch(context.Background(), []*types.Chunk{chunk}, batchMeta)
 	assert.NoError(t, err)
 
 	// check db status

bridge/tests/l1_message_relay_test.go

@@ -29,14 +29,16 @@ func testRelayL1MessageSucceed(t *testing.T) {
 	l2Cfg := bridgeApp.Config.L2Config
 
 	// Create L1Relayer
-	l1Relayer, err := relayer.NewLayer1Relayer(context.Background(), db, l1Cfg.RelayerConfig)
+	l1Relayer, err := relayer.NewLayer1Relayer(context.Background(), db, l1Cfg.RelayerConfig, nil)
 	assert.NoError(t, err)
 	// Create L1Watcher
 	confirmations := rpc.LatestBlockNumber
-	l1Watcher := watcher.NewL1WatcherClient(context.Background(), l1Client, 0, confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
+	l1Watcher := watcher.NewL1WatcherClient(context.Background(), l1Client, 0, confirmations, l1Cfg.L1MessengerAddress,
+		l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db, nil)
 
 	// Create L2Watcher
-	l2Watcher := watcher.NewL2WatcherClient(context.Background(), l2Client, confirmations, l2Cfg.L2MessengerAddress, l2Cfg.L2MessageQueueAddress, l2Cfg.WithdrawTrieRootSlot, db)
+	l2Watcher := watcher.NewL2WatcherClient(context.Background(), l2Client, confirmations, l2Cfg.L2MessengerAddress,
+		l2Cfg.L2MessageQueueAddress, l2Cfg.WithdrawTrieRootSlot, db, nil)
 
 	// send message through l1 messenger contract
 	nonce, err := l1MessengerInstance.MessageNonce(&bind.CallOpts{})

bridge/tests/rollup_test.go

@@ -5,7 +5,6 @@ import (
 	"math/big"
 	"testing"
 
-	"github.com/scroll-tech/go-ethereum/accounts/abi/bind"
 	"github.com/scroll-tech/go-ethereum/common"
 	gethTypes "github.com/scroll-tech/go-ethereum/core/types"
 	"github.com/stretchr/testify/assert"
@@ -13,6 +12,7 @@ import (
 	"scroll-tech/common/database"
 	"scroll-tech/common/types"
 	"scroll-tech/common/types/message"
+	"scroll-tech/common/utils"
 
 	"scroll-tech/bridge/internal/config"
 	"scroll-tech/bridge/internal/controller/relayer"
@@ -28,12 +28,13 @@ func testCommitBatchAndFinalizeBatch(t *testing.T) {
 
 	// Create L2Relayer
 	l2Cfg := bridgeApp.Config.L2Config
-	l2Relayer, err := relayer.NewLayer2Relayer(context.Background(), l2Client, db, l2Cfg.RelayerConfig, false)
+	l2Relayer, err := relayer.NewLayer2Relayer(context.Background(), l2Client, db, l2Cfg.RelayerConfig, false, nil)
 	assert.NoError(t, err)
 
 	// Create L1Watcher
 	l1Cfg := bridgeApp.Config.L1Config
-	l1Watcher := watcher.NewL1WatcherClient(context.Background(), l1Client, 0, l1Cfg.Confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
+	l1Watcher := watcher.NewL1WatcherClient(context.Background(), l1Client, 0, l1Cfg.Confirmations, l1Cfg.L1MessengerAddress,
+		l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db, nil)
 
 	// add some blocks to db
 	var wrappedBlocks []*types.WrappedBlock
@@ -57,18 +58,20 @@ func testCommitBatchAndFinalizeBatch(t *testing.T) {
 	assert.NoError(t, err)
 
 	cp := watcher.NewChunkProposer(context.Background(), &config.ChunkProposerConfig{
-		MaxTxGasPerChunk:                1000000000,
-		MaxL2TxNumPerChunk:              10000,
+		MaxTxNumPerChunk:                10000,
 		MaxL1CommitGasPerChunk:          50000000000,
 		MaxL1CommitCalldataSizePerChunk: 1000000,
-		MinL1CommitCalldataSizePerChunk: 0,
 		MaxRowConsumptionPerChunk:       1048319,
 		ChunkTimeoutSec:                 300,
-	}, db)
+	}, db, nil)
 	cp.TryProposeChunk()
 
+	batchOrm := orm.NewBatch(db)
+	unbatchedChunkIndex, err := batchOrm.GetFirstUnbatchedChunkIndex(context.Background())
+	assert.NoError(t, err)
+
 	chunkOrm := orm.NewChunk(db)
-	chunks, err := chunkOrm.GetUnbatchedChunks(context.Background())
+	chunks, err := chunkOrm.GetChunksGEIndex(context.Background(), unbatchedChunkIndex, 0)
 	assert.NoError(t, err)
 	assert.Len(t, chunks, 1)
 
@@ -76,14 +79,12 @@ func testCommitBatchAndFinalizeBatch(t *testing.T) {
 		MaxChunkNumPerBatch:             10,
 		MaxL1CommitGasPerBatch:          50000000000,
 		MaxL1CommitCalldataSizePerBatch: 1000000,
-		MinChunkNumPerBatch:             1,
 		BatchTimeoutSec:                 300,
-	}, db)
+	}, db, nil)
 	bp.TryProposeBatch()
 
 	l2Relayer.ProcessPendingBatches()
 
-	batchOrm := orm.NewBatch(db)
 	batch, err := batchOrm.GetLatestBatch(context.Background())
 	assert.NoError(t, err)
 	assert.NotNil(t, batch)
@@ -91,20 +92,22 @@ func testCommitBatchAndFinalizeBatch(t *testing.T) {
 	assert.NotEmpty(t, batch.CommitTxHash)
 	assert.Equal(t, types.RollupCommitting, types.RollupStatus(batch.RollupStatus))
 
-	assert.NoError(t, err)
-	commitTx, _, err := l1Client.TransactionByHash(context.Background(), common.HexToHash(batch.CommitTxHash))
-	assert.NoError(t, err)
-	commitTxReceipt, err := bind.WaitMined(context.Background(), l1Client, commitTx)
-	assert.NoError(t, err)
-	assert.Equal(t, len(commitTxReceipt.Logs), 1)
+	success := utils.TryTimes(30, func() bool {
+		var receipt *gethTypes.Receipt
+		receipt, err = l1Client.TransactionReceipt(context.Background(), common.HexToHash(batch.CommitTxHash))
+		return err == nil && receipt.Status == 1
+	})
+	assert.True(t, success)
 
 	// fetch rollup events
-	err = l1Watcher.FetchContractEvent()
-	assert.NoError(t, err)
-	statuses, err := batchOrm.GetRollupStatusByHashList(context.Background(), []string{batchHash})
-	assert.NoError(t, err)
-	assert.Equal(t, 1, len(statuses))
-	assert.Equal(t, types.RollupCommitted, statuses[0])
+	success = utils.TryTimes(30, func() bool {
+		err = l1Watcher.FetchContractEvent()
+		assert.NoError(t, err)
+		var statuses []types.RollupStatus
+		statuses, err = batchOrm.GetRollupStatusByHashList(context.Background(), []string{batchHash})
+		return err == nil && len(statuses) == 1 && types.RollupCommitted == statuses[0]
+	})
+	assert.True(t, success)
 
 	// add dummy proof
 	proof := &message.BatchProof{
@@ -118,7 +121,7 @@ func testCommitBatchAndFinalizeBatch(t *testing.T) {
 	// process committed batch and check status
 	l2Relayer.ProcessCommittedBatches()
 
-	statuses, err = batchOrm.GetRollupStatusByHashList(context.Background(), []string{batchHash})
+	statuses, err := batchOrm.GetRollupStatusByHashList(context.Background(), []string{batchHash})
 	assert.NoError(t, err)
 	assert.Equal(t, 1, len(statuses))
 	assert.Equal(t, types.RollupFinalizing, statuses[0])
@@ -128,17 +131,20 @@ func testCommitBatchAndFinalizeBatch(t *testing.T) {
 	assert.NotNil(t, batch)
 	assert.NotEmpty(t, batch.FinalizeTxHash)
 
-	finalizeTx, _, err := l1Client.TransactionByHash(context.Background(), common.HexToHash(batch.FinalizeTxHash))
-	assert.NoError(t, err)
-	finalizeTxReceipt, err := bind.WaitMined(context.Background(), l1Client, finalizeTx)
-	assert.NoError(t, err)
-	assert.Equal(t, len(finalizeTxReceipt.Logs), 1)
+	success = utils.TryTimes(30, func() bool {
+		var receipt *gethTypes.Receipt
+		receipt, err = l1Client.TransactionReceipt(context.Background(), common.HexToHash(batch.FinalizeTxHash))
+		return err == nil && receipt.Status == 1
+	})
+	assert.True(t, success)
 
 	// fetch rollup events
-	err = l1Watcher.FetchContractEvent()
-	assert.NoError(t, err)
-	statuses, err = batchOrm.GetRollupStatusByHashList(context.Background(), []string{batchHash})
-	assert.NoError(t, err)
-	assert.Equal(t, 1, len(statuses))
-	assert.Equal(t, types.RollupFinalized, statuses[0])
+	success = utils.TryTimes(30, func() bool {
+		err = l1Watcher.FetchContractEvent()
+		assert.NoError(t, err)
+		var statuses []types.RollupStatus
+		statuses, err = batchOrm.GetRollupStatusByHashList(context.Background(), []string{batchHash})
+		return err == nil && len(statuses) == 1 && types.RollupFinalized == statuses[0]
+	})
+	assert.True(t, success)
 }

common/libzkp/impl/Cargo.lock

@@ -32,7 +32,7 @@ dependencies = [
 [[package]]
 name = "aggregator"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.5.14rc1#ae23cd7af80f1ba9d0f0bb1a4367ffe626ade86e"
+source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.7.5#aa9a9aff698a5b253d1f3c29ea3d3006364777bf"
 dependencies = [
  "ark-std",
  "env_logger 0.10.0",
@@ -433,7 +433,7 @@ checksum = "a3e2c3daef883ecc1b5d58c15adae93470a91d425f3532ba1695849656af3fc1"
 [[package]]
 name = "bus-mapping"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.5.14rc1#ae23cd7af80f1ba9d0f0bb1a4367ffe626ade86e"
+source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.7.5#aa9a9aff698a5b253d1f3c29ea3d3006364777bf"
 dependencies = [
  "eth-types",
  "ethers-core",
@@ -1049,7 +1049,7 @@ dependencies = [
 [[package]]
 name = "eth-types"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.5.14rc1#ae23cd7af80f1ba9d0f0bb1a4367ffe626ade86e"
+source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.7.5#aa9a9aff698a5b253d1f3c29ea3d3006364777bf"
 dependencies = [
  "ethers-core",
  "ethers-signers",
@@ -1226,7 +1226,7 @@ dependencies = [
 [[package]]
 name = "external-tracer"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.5.14rc1#ae23cd7af80f1ba9d0f0bb1a4367ffe626ade86e"
+source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.7.5#aa9a9aff698a5b253d1f3c29ea3d3006364777bf"
 dependencies = [
  "eth-types",
  "geth-utils",
@@ -1439,7 +1439,7 @@ dependencies = [
 [[package]]
 name = "gadgets"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.5.14rc1#ae23cd7af80f1ba9d0f0bb1a4367ffe626ade86e"
+source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.7.5#aa9a9aff698a5b253d1f3c29ea3d3006364777bf"
 dependencies = [
  "digest 0.7.6",
  "eth-types",
@@ -1479,7 +1479,7 @@ dependencies = [
 [[package]]
 name = "geth-utils"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.5.14rc1#ae23cd7af80f1ba9d0f0bb1a4367ffe626ade86e"
+source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.7.5#aa9a9aff698a5b253d1f3c29ea3d3006364777bf"
 dependencies = [
  "env_logger 0.9.3",
  "gobuild 0.1.0-alpha.2 (git+https://github.com/scroll-tech/gobuild.git)",
@@ -1583,7 +1583,7 @@ dependencies = [
 [[package]]
 name = "halo2-base"
 version = "0.2.2"
-source = "git+https://github.com/scroll-tech/halo2-lib?branch=develop#2c225864227e74b207d9f4b9e08c4d5f1afc69a1"
+source = "git+https://github.com/scroll-tech/halo2-lib?tag=v0.1.0#2c225864227e74b207d9f4b9e08c4d5f1afc69a1"
 dependencies = [
  "ff",
  "halo2_proofs",
@@ -1598,7 +1598,7 @@ dependencies = [
 [[package]]
 name = "halo2-ecc"
 version = "0.2.2"
-source = "git+https://github.com/scroll-tech/halo2-lib?branch=develop#2c225864227e74b207d9f4b9e08c4d5f1afc69a1"
+source = "git+https://github.com/scroll-tech/halo2-lib?tag=v0.1.0#2c225864227e74b207d9f4b9e08c4d5f1afc69a1"
 dependencies = [
  "ff",
  "group",
@@ -1633,7 +1633,7 @@ dependencies = [
 [[package]]
 name = "halo2-mpt-circuits"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/mpt-circuit.git?branch=v0.5#1c11b6c9b1245073a76c3ce7100b6798060f7cb8"
+source = "git+https://github.com/scroll-tech/mpt-circuit.git?tag=v0.5.1#2163a9c436ed85363c954ecf7e6e1044a1b991dc"
 dependencies = [
  "ethers-core",
  "halo2_proofs",
@@ -1655,7 +1655,7 @@ dependencies = [
 [[package]]
 name = "halo2_proofs"
 version = "0.2.0"
-source = "git+https://github.com/scroll-tech/halo2.git?branch=develop#4d8a405a97ce445c88fc8ec40f9a2dd0a661c697"
+source = "git+https://github.com/scroll-tech/halo2.git?branch=develop#19de67c07a9b9b567580466763f93ebfbc3bb799"
 dependencies = [
  "ark-std",
  "blake2b_simd",
@@ -2077,7 +2077,7 @@ dependencies = [
 [[package]]
 name = "keccak256"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.5.14rc1#ae23cd7af80f1ba9d0f0bb1a4367ffe626ade86e"
+source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.7.5#aa9a9aff698a5b253d1f3c29ea3d3006364777bf"
 dependencies = [
  "env_logger 0.9.3",
  "eth-types",
@@ -2264,7 +2264,7 @@ dependencies = [
 [[package]]
 name = "mock"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.5.14rc1#ae23cd7af80f1ba9d0f0bb1a4367ffe626ade86e"
+source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.7.5#aa9a9aff698a5b253d1f3c29ea3d3006364777bf"
 dependencies = [
  "eth-types",
  "ethers-core",
@@ -2279,7 +2279,7 @@ dependencies = [
 [[package]]
 name = "mpt-zktrie"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.5.14rc1#ae23cd7af80f1ba9d0f0bb1a4367ffe626ade86e"
+source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.7.5#aa9a9aff698a5b253d1f3c29ea3d3006364777bf"
 dependencies = [
  "bus-mapping",
  "eth-types",
@@ -2754,8 +2754,8 @@ dependencies = [
 
 [[package]]
 name = "prover"
-version = "0.4.0"
-source = "git+https://github.com/scroll-tech/scroll-prover?tag=v0.5.14#7653cd664105077ac1540ecfdb0602e3858f59a6"
+version = "0.7.5"
+source = "git+https://github.com/scroll-tech/scroll-prover?tag=v0.7.5#9699d40940aed2f14d8e1958167d714bca2c9984"
 dependencies = [
  "aggregator",
  "anyhow",
@@ -3624,7 +3624,7 @@ checksum = "62bb4feee49fdd9f707ef802e22365a35de4b7b299de4763d44bfea899442ff9"
 [[package]]
 name = "snark-verifier"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/snark-verifier?branch=develop#12c306ec57849921e690221b10b8a08189868d4a"
+source = "git+https://github.com/scroll-tech/snark-verifier?tag=v0.1.2#4466059ce9a6dfaf26455e4ffb61d72af775cf52"
 dependencies = [
  "bytes",
  "ethereum-types 0.14.1",
@@ -3648,7 +3648,7 @@ dependencies = [
 [[package]]
 name = "snark-verifier-sdk"
 version = "0.0.1"
-source = "git+https://github.com/scroll-tech/snark-verifier?branch=develop#12c306ec57849921e690221b10b8a08189868d4a"
+source = "git+https://github.com/scroll-tech/snark-verifier?tag=v0.1.2#4466059ce9a6dfaf26455e4ffb61d72af775cf52"
 dependencies = [
  "bincode",
  "env_logger 0.10.0",
@@ -4039,8 +4039,8 @@ checksum = "497961ef93d974e23eb6f433eb5fe1b7930b659f06d12dec6fc44a8f554c0bba"
 
 [[package]]
 name = "types"
-version = "0.4.0"
-source = "git+https://github.com/scroll-tech/scroll-prover?tag=v0.5.14#7653cd664105077ac1540ecfdb0602e3858f59a6"
+version = "0.7.5"
+source = "git+https://github.com/scroll-tech/scroll-prover?tag=v0.7.5#9699d40940aed2f14d8e1958167d714bca2c9984"
 dependencies = [
  "base64 0.13.1",
  "blake2",
@@ -4491,10 +4491,11 @@ checksum = "2a0956f1ba7c7909bfb66c2e9e4124ab6f6482560f6628b5aaeba39207c9aad9"
 [[package]]
 name = "zkevm-circuits"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.5.14rc1#ae23cd7af80f1ba9d0f0bb1a4367ffe626ade86e"
+source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.7.5#aa9a9aff698a5b253d1f3c29ea3d3006364777bf"
 dependencies = [
  "array-init",
  "bus-mapping",
+ "either",
  "env_logger 0.9.3",
  "eth-types",
  "ethers-core",
@@ -4535,6 +4536,7 @@ dependencies = [
 name = "zkp"
 version = "0.1.0"
 dependencies = [
+ "base64 0.13.1",
  "env_logger 0.9.3",
  "halo2_proofs",
  "libc",

common/libzkp/impl/Cargo.toml

@@ -20,18 +20,18 @@ maingate = { git = "https://github.com/scroll-tech/halo2wrong", branch = "halo2-
 halo2curves = { git = "https://github.com/scroll-tech/halo2curves.git", branch = "0.3.1-derive-serde" }
 
 [dependencies]
-prover = { git = "https://github.com/scroll-tech/scroll-prover", tag = "v0.5.14" }
-types = { git = "https://github.com/scroll-tech/scroll-prover", tag = "v0.5.14" }
+prover = { git = "https://github.com/scroll-tech/scroll-prover", tag = "v0.7.5" }
+types = { git = "https://github.com/scroll-tech/scroll-prover", tag = "v0.7.5" }
 halo2_proofs = { git = "https://github.com/scroll-tech/halo2.git", branch = "develop" }
 
-log = "0.4"
+base64 = "0.13.0"
 env_logger = "0.9.0"
+libc = "0.2"
+log = "0.4"
+once_cell = "1.8.0"
 serde = "1.0"
 serde_derive = "1.0"
 serde_json = "1.0.66"
-libc = "0.2"
-once_cell = "1.8.0"
-
 
 [profile.test]
 opt-level = 3

common/libzkp/impl/src/batch.rs

@@ -1,11 +1,14 @@
-use crate::utils::{c_char_to_str, c_char_to_vec, vec_to_c_char, OUTPUT_DIR};
+use crate::{
+    types::{CheckChunkProofsResponse, ProofResult},
+    utils::{c_char_to_str, c_char_to_vec, string_to_c_char, vec_to_c_char, OUTPUT_DIR},
+};
 use libc::c_char;
 use prover::{
     aggregator::{Prover, Verifier},
     utils::{chunk_trace_to_witness_block, init_env_and_log},
     BatchProof, ChunkHash, ChunkProof,
 };
-use std::{cell::OnceCell, panic, ptr::null};
+use std::{cell::OnceCell, env, panic, ptr::null};
 use types::eth::BlockTrace;
 
 static mut PROVER: OnceCell<Prover> = OnceCell::new();
@@ -13,11 +16,15 @@ static mut VERIFIER: OnceCell<Verifier> = OnceCell::new();
 
 /// # Safety
 #[no_mangle]
-pub unsafe extern "C" fn init_batch_prover(params_dir: *const c_char) {
+pub unsafe extern "C" fn init_batch_prover(params_dir: *const c_char, assets_dir: *const c_char) {
     init_env_and_log("ffi_batch_prove");
 
     let params_dir = c_char_to_str(params_dir);
-    let prover = Prover::from_params_dir(params_dir);
+    let assets_dir = c_char_to_str(assets_dir);
+
+    // TODO: add a settings in scroll-prover.
+    env::set_var("SCROLL_PROVER_ASSETS_DIR", assets_dir);
+    let prover = Prover::from_dirs(params_dir, assets_dir);
 
     PROVER.set(prover).unwrap();
 }
@@ -30,39 +37,104 @@ pub unsafe extern "C" fn init_batch_verifier(params_dir: *const c_char, assets_d
     let params_dir = c_char_to_str(params_dir);
     let assets_dir = c_char_to_str(assets_dir);
 
+    // TODO: add a settings in scroll-prover.
+    env::set_var("SCROLL_PROVER_ASSETS_DIR", assets_dir);
     let verifier = Verifier::from_dirs(params_dir, assets_dir);
 
     VERIFIER.set(verifier).unwrap();
 }
 
+/// # Safety
+#[no_mangle]
+pub unsafe extern "C" fn get_batch_vk() -> *const c_char {
+    let vk_result = panic::catch_unwind(|| PROVER.get_mut().unwrap().get_vk());
+
+    vk_result
+        .ok()
+        .flatten()
+        .map_or(null(), |vk| string_to_c_char(base64::encode(vk)))
+}
+
+/// # Safety
+#[no_mangle]
+pub unsafe extern "C" fn check_chunk_proofs(chunk_proofs: *const c_char) -> *const c_char {
+    let check_result: Result<bool, String> = panic::catch_unwind(|| {
+        let chunk_proofs = c_char_to_vec(chunk_proofs);
+        let chunk_proofs = serde_json::from_slice::<Vec<ChunkProof>>(&chunk_proofs)
+            .map_err(|e| format!("failed to deserialize chunk proofs: {e:?}"))?;
+
+        if chunk_proofs.is_empty() {
+            return Err("provided chunk proofs are empty.".to_string());
+        }
+
+        let prover_ref = PROVER.get().expect("failed to get reference to PROVER.");
+
+        let valid = prover_ref.check_chunk_proofs(&chunk_proofs);
+        Ok(valid)
+    })
+    .unwrap_or_else(|e| Err(format!("unwind error: {e:?}")));
+
+    let r = match check_result {
+        Ok(valid) => CheckChunkProofsResponse {
+            ok: valid,
+            error: None,
+        },
+        Err(err) => CheckChunkProofsResponse {
+            ok: false,
+            error: Some(err),
+        },
+    };
+
+    serde_json::to_vec(&r).map_or(null(), vec_to_c_char)
+}
+
 /// # Safety
 #[no_mangle]
 pub unsafe extern "C" fn gen_batch_proof(
     chunk_hashes: *const c_char,
     chunk_proofs: *const c_char,
 ) -> *const c_char {
-    let chunk_hashes = c_char_to_vec(chunk_hashes);
-    let chunk_proofs = c_char_to_vec(chunk_proofs);
+    let proof_result: Result<Vec<u8>, String> = panic::catch_unwind(|| {
+        let chunk_hashes = c_char_to_vec(chunk_hashes);
+        let chunk_proofs = c_char_to_vec(chunk_proofs);
 
-    let chunk_hashes = serde_json::from_slice::<Vec<ChunkHash>>(&chunk_hashes).unwrap();
-    let chunk_proofs = serde_json::from_slice::<Vec<ChunkProof>>(&chunk_proofs).unwrap();
-    assert_eq!(chunk_hashes.len(), chunk_proofs.len());
+        let chunk_hashes = serde_json::from_slice::<Vec<ChunkHash>>(&chunk_hashes)
+            .map_err(|e| format!("failed to deserialize chunk hashes: {e:?}"))?;
+        let chunk_proofs = serde_json::from_slice::<Vec<ChunkProof>>(&chunk_proofs)
+            .map_err(|e| format!("failed to deserialize chunk proofs: {e:?}"))?;
 
-    let chunk_hashes_proofs = chunk_hashes
-        .into_iter()
-        .zip(chunk_proofs.into_iter())
-        .collect();
+        if chunk_hashes.len() != chunk_proofs.len() {
+            return Err(format!("chunk hashes and chunk proofs lengths mismatch: chunk_hashes.len() = {}, chunk_proofs.len() = {}",
+                chunk_hashes.len(), chunk_proofs.len()));
+        }
+
+        let chunk_hashes_proofs = chunk_hashes
+            .into_iter()
+            .zip(chunk_proofs.into_iter())
+            .collect();
 
-    let proof_result = panic::catch_unwind(|| {
         let proof = PROVER
             .get_mut()
-            .unwrap()
+            .expect("failed to get mutable reference to PROVER.")
             .gen_agg_evm_proof(chunk_hashes_proofs, None, OUTPUT_DIR.as_deref())
-            .unwrap();
+            .map_err(|e| format!("failed to generate proof: {e:?}"))?;
 
-        serde_json::to_vec(&proof).unwrap()
-    });
-    proof_result.map_or(null(), vec_to_c_char)
+        serde_json::to_vec(&proof).map_err(|e| format!("failed to serialize the proof: {e:?}"))
+    })
+    .unwrap_or_else(|e| Err(format!("unwind error: {e:?}")));
+
+    let r = match proof_result {
+        Ok(proof_bytes) => ProofResult {
+            message: Some(proof_bytes),
+            error: None,
+        },
+        Err(err) => ProofResult {
+            message: None,
+            error: Some(err),
+        },
+    };
+
+    serde_json::to_vec(&r).map_or(null(), vec_to_c_char)
 }
 
 /// # Safety

common/libzkp/impl/src/chunk.rs

@@ -1,11 +1,14 @@
-use crate::utils::{c_char_to_str, c_char_to_vec, vec_to_c_char, OUTPUT_DIR};
+use crate::{
+    types::ProofResult,
+    utils::{c_char_to_str, c_char_to_vec, string_to_c_char, vec_to_c_char, OUTPUT_DIR},
+};
 use libc::c_char;
 use prover::{
     utils::init_env_and_log,
     zkevm::{Prover, Verifier},
     ChunkProof,
 };
-use std::{cell::OnceCell, panic, ptr::null};
+use std::{cell::OnceCell, env, panic, ptr::null};
 use types::eth::BlockTrace;
 
 static mut PROVER: OnceCell<Prover> = OnceCell::new();
@@ -13,10 +16,14 @@ static mut VERIFIER: OnceCell<Verifier> = OnceCell::new();
 
 /// # Safety
 #[no_mangle]
-pub unsafe extern "C" fn init_chunk_prover(params_dir: *const c_char) {
+pub unsafe extern "C" fn init_chunk_prover(params_dir: *const c_char, assets_dir: *const c_char) {
     init_env_and_log("ffi_chunk_prove");
 
     let params_dir = c_char_to_str(params_dir);
+    let assets_dir = c_char_to_str(assets_dir);
+
+    // TODO: add a settings in scroll-prover.
+    env::set_var("SCROLL_PROVER_ASSETS_DIR", assets_dir);
     let prover = Prover::from_params_dir(params_dir);
 
     PROVER.set(prover).unwrap();
@@ -30,6 +37,8 @@ pub unsafe extern "C" fn init_chunk_verifier(params_dir: *const c_char, assets_d
     let params_dir = c_char_to_str(params_dir);
     let assets_dir = c_char_to_str(assets_dir);
 
+    // TODO: add a settings in scroll-prover.
+    env::set_var("SCROLL_PROVER_ASSETS_DIR", assets_dir);
     let verifier = Verifier::from_dirs(params_dir, assets_dir);
 
     VERIFIER.set(verifier).unwrap();
@@ -37,21 +46,45 @@ pub unsafe extern "C" fn init_chunk_verifier(params_dir: *const c_char, assets_d
 
 /// # Safety
 #[no_mangle]
-pub unsafe extern "C" fn gen_chunk_proof(block_traces: *const c_char) -> *const c_char {
-    let block_traces = c_char_to_vec(block_traces);
-    let block_traces = serde_json::from_slice::<Vec<BlockTrace>>(&block_traces).unwrap();
+pub unsafe extern "C" fn get_chunk_vk() -> *const c_char {
+    let vk_result = panic::catch_unwind(|| PROVER.get_mut().unwrap().get_vk());
+
+    vk_result
+        .ok()
+        .flatten()
+        .map_or(null(), |vk| string_to_c_char(base64::encode(vk)))
+}
+
+/// # Safety
+#[no_mangle]
+pub unsafe extern "C" fn gen_chunk_proof(block_traces: *const c_char) -> *const c_char {
+    let proof_result: Result<Vec<u8>, String> = panic::catch_unwind(|| {
+        let block_traces = c_char_to_vec(block_traces);
+        let block_traces = serde_json::from_slice::<Vec<BlockTrace>>(&block_traces)
+            .map_err(|e| format!("failed to deserialize block traces: {e:?}"))?;
 
-    let proof_result = panic::catch_unwind(|| {
         let proof = PROVER
             .get_mut()
-            .unwrap()
+            .expect("failed to get mutable reference to PROVER.")
             .gen_chunk_proof(block_traces, None, OUTPUT_DIR.as_deref())
-            .unwrap();
+            .map_err(|e| format!("failed to generate proof: {e:?}"))?;
 
-        serde_json::to_vec(&proof).unwrap()
-    });
+        serde_json::to_vec(&proof).map_err(|e| format!("failed to serialize the proof: {e:?}"))
+    })
+    .unwrap_or_else(|e| Err(format!("unwind error: {e:?}")));
 
-    proof_result.map_or(null(), vec_to_c_char)
+    let r = match proof_result {
+        Ok(proof_bytes) => ProofResult {
+            message: Some(proof_bytes),
+            error: None,
+        },
+        Err(err) => ProofResult {
+            message: None,
+            error: Some(err),
+        },
+    };
+
+    serde_json::to_vec(&r).map_or(null(), vec_to_c_char)
 }
 
 /// # Safety

common/libzkp/impl/src/lib.rs

@@ -2,4 +2,5 @@
 
 mod batch;
 mod chunk;
+mod types;
 mod utils;

common/libzkp/impl/src/types.rs

@@ -0,0 +1,22 @@
+use serde::{Deserialize, Serialize};
+
+// Represents the result of a chunk proof checking operation.
+// `ok` indicates whether the proof checking was successful.
+// `error` provides additional details in case the check failed.
+#[derive(Debug, Clone, Deserialize, Serialize)]
+pub struct CheckChunkProofsResponse {
+    pub ok: bool,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub error: Option<String>,
+}
+
+// Encapsulates the result from generating a proof.
+// `message` holds the generated proof in byte slice format.
+// `error` provides additional details in case the proof generation failed.
+#[derive(Debug, Clone, Deserialize, Serialize)]
+pub struct ProofResult {
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub message: Option<Vec<u8>>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub error: Option<String>,
+}

common/libzkp/impl/src/utils.rs

@@ -19,6 +19,10 @@ pub(crate) fn c_char_to_vec(c: *const c_char) -> Vec<u8> {
     cstr.to_bytes().to_vec()
 }
 
+pub(crate) fn string_to_c_char(string: String) -> *const c_char {
+    CString::new(string).unwrap().into_raw()
+}
+
 pub(crate) fn vec_to_c_char(bytes: Vec<u8>) -> *const c_char {
     CString::new(bytes).unwrap().into_raw()
 }

common/libzkp/interface/libzkp.h

@@ -1,10 +1,13 @@
-void init_batch_prover(char* params_dir);
+void init_batch_prover(char* params_dir, char* assets_dir);
 void init_batch_verifier(char* params_dir, char* assets_dir);
+char* get_batch_vk();
+char* check_chunk_proofs(char* chunk_proofs);
 char* gen_batch_proof(char* chunk_hashes, char* chunk_proofs);
 char verify_batch_proof(char* proof);
 
-void init_chunk_prover(char* params_dir);
+void init_chunk_prover(char* params_dir, char* assets_dir);
 void init_chunk_verifier(char* params_dir, char* assets_dir);
+char* get_chunk_vk();
 char* gen_chunk_proof(char* block_traces);
 char verify_chunk_proof(char* proof);
 

common/metrics/metrics.go

@@ -1,57 +0,0 @@
-package metrics
-
-import (
-	"context"
-	"net"
-	"net/http"
-	"strconv"
-
-	"github.com/scroll-tech/go-ethereum/log"
-	"github.com/scroll-tech/go-ethereum/metrics"
-	"github.com/scroll-tech/go-ethereum/metrics/prometheus"
-	"github.com/scroll-tech/go-ethereum/rpc"
-	"github.com/urfave/cli/v2"
-
-	"scroll-tech/common/utils"
-)
-
-var (
-	// ScrollRegistry is used for scroll metrics.
-	ScrollRegistry = metrics.NewRegistry()
-)
-
-// Serve starts the metrics server on the given address, will be closed when the given
-// context is canceled.
-func Serve(ctx context.Context, c *cli.Context) {
-	if !c.Bool(utils.MetricsEnabled.Name) {
-		return
-	}
-
-	address := net.JoinHostPort(
-		c.String(utils.MetricsAddr.Name),
-		strconv.Itoa(c.Int(utils.MetricsPort.Name)),
-	)
-
-	server := &http.Server{
-		Addr:         address,
-		Handler:      prometheus.Handler(ScrollRegistry),
-		ReadTimeout:  rpc.DefaultHTTPTimeouts.ReadTimeout,
-		WriteTimeout: rpc.DefaultHTTPTimeouts.WriteTimeout,
-		IdleTimeout:  rpc.DefaultHTTPTimeouts.IdleTimeout,
-	}
-
-	go func() {
-		<-ctx.Done()
-		if err := server.Close(); err != nil {
-			log.Error("Failed to close metrics server", "error", err)
-		}
-	}()
-
-	log.Info("Starting metrics server", "address", address)
-
-	go func() {
-		if err := server.ListenAndServe(); err != nil {
-			log.Error("start metrics server error", "error", err)
-		}
-	}()
-}

common/types/batch_header.go

@@ -10,6 +10,16 @@ import (
 	"github.com/scroll-tech/go-ethereum/crypto"
 )
 
+// BatchMeta contains metadata of a batch.
+type BatchMeta struct {
+	StartChunkIndex           uint64
+	StartChunkHash            string
+	EndChunkIndex             uint64
+	EndChunkHash              string
+	TotalL1CommitGas          uint64
+	TotalL1CommitCalldataSize uint32
+}
+
 // BatchHeader contains batch header info to be committed.
 type BatchHeader struct {
 	// Encoded in BatchHeaderV0Codec

common/types/block.go

@@ -3,20 +3,31 @@ package types
 import (
 	"encoding/binary"
 	"errors"
+	"fmt"
 	"math"
 
 	"github.com/scroll-tech/go-ethereum/common"
 	"github.com/scroll-tech/go-ethereum/common/hexutil"
 	"github.com/scroll-tech/go-ethereum/core/types"
+	"github.com/scroll-tech/go-ethereum/log"
 )
 
+// CalldataNonZeroByteGas is the gas consumption per non zero byte in calldata.
+const CalldataNonZeroByteGas = 16
+
+// GetKeccak256Gas calculates keccak256 hash gas.
+func GetKeccak256Gas(size uint64) uint64 {
+	return 30 + 6*((size+31)/32) // 30 + 6 * ceil(size / 32)
+}
+
 // WrappedBlock contains the block's Header, Transactions and WithdrawTrieRoot hash.
 type WrappedBlock struct {
 	Header *types.Header `json:"header"`
 	// Transactions is only used for recover types.Transactions, the from of types.TransactionData field is missing.
-	Transactions   []*types.TransactionData `json:"transactions"`
-	WithdrawRoot   common.Hash              `json:"withdraw_trie_root,omitempty"`
-	RowConsumption *types.RowConsumption    `json:"row_consumption"`
+	Transactions         []*types.TransactionData `json:"transactions"`
+	WithdrawRoot         common.Hash              `json:"withdraw_trie_root,omitempty"`
+	RowConsumption       *types.RowConsumption    `json:"row_consumption"`
+	txPayloadLengthCache map[string]uint64
 }
 
 // NumL1Messages returns the number of L1 messages in this block.
@@ -87,17 +98,15 @@ func (w *WrappedBlock) EstimateL1CommitCalldataSize() uint64 {
 		if txData.Type == types.L1MessageTxType {
 			continue
 		}
-		size += uint64(len(txData.Data))
+		size += 4 // 4 bytes payload length
+		size += w.getTxPayloadLength(txData)
 	}
+	size += 60 //  60 bytes BlockContext
 	return size
 }
 
 // EstimateL1CommitGas calculates the total L1 commit gas for this block approximately.
 func (w *WrappedBlock) EstimateL1CommitGas() uint64 {
-	getKeccakGas := func(size uint64) uint64 {
-		return 30 + 6*((size+31)/32) // 30 + 6 * ceil(size / 32)
-	}
-
 	var total uint64
 	var numL1Messages uint64
 	for _, txData := range w.Transactions {
@@ -106,25 +115,15 @@ func (w *WrappedBlock) EstimateL1CommitGas() uint64 {
 			continue
 		}
 
-		data, _ := hexutil.Decode(txData.Data)
-		tx := types.NewTx(&types.LegacyTx{
-			Nonce:    txData.Nonce,
-			To:       txData.To,
-			Value:    txData.Value.ToInt(),
-			Gas:      txData.Gas,
-			GasPrice: txData.GasPrice.ToInt(),
-			Data:     data,
-			V:        txData.V.ToInt(),
-			R:        txData.R.ToInt(),
-			S:        txData.S.ToInt(),
-		})
-		rlpTxData, _ := tx.MarshalBinary()
-		txPayloadLength := uint64(len(rlpTxData))
-		total += 16 * txPayloadLength          // an over-estimate: treat each byte as non-zero
-		total += 16 * 4                        // size of a uint32 field
-		total += getKeccakGas(txPayloadLength) // l2 tx hash
+		txPayloadLength := w.getTxPayloadLength(txData)
+		total += CalldataNonZeroByteGas * txPayloadLength // an over-estimate: treat each byte as non-zero
+		total += CalldataNonZeroByteGas * 4               // 4 bytes payload length
+		total += GetKeccak256Gas(txPayloadLength)         // l2 tx hash
 	}
 
+	// 60 bytes BlockContext calldata
+	total += CalldataNonZeroByteGas * 60
+
 	// sload
 	total += 2100 * numL1Messages // numL1Messages times cold sload in L1MessageQueue
 
@@ -135,13 +134,47 @@ func (w *WrappedBlock) EstimateL1CommitGas() uint64 {
 	return total
 }
 
-// L2TxsNum calculates the number of l2 txs.
-func (w *WrappedBlock) L2TxsNum() uint64 {
-	var count uint64
-	for _, txData := range w.Transactions {
-		if txData.Type != types.L1MessageTxType {
-			count++
-		}
+func (w *WrappedBlock) getTxPayloadLength(txData *types.TransactionData) uint64 {
+	if w.txPayloadLengthCache == nil {
+		w.txPayloadLengthCache = make(map[string]uint64)
 	}
-	return count
+
+	if length, exists := w.txPayloadLengthCache[txData.TxHash]; exists {
+		return length
+	}
+
+	rlpTxData, err := convertTxDataToRLPEncoding(txData)
+	if err != nil {
+		log.Crit("convertTxDataToRLPEncoding failed, which should not happen", "hash", txData.TxHash, "err", err)
+		return 0
+	}
+	txPayloadLength := uint64(len(rlpTxData))
+	w.txPayloadLengthCache[txData.TxHash] = txPayloadLength
+	return txPayloadLength
+}
+
+func convertTxDataToRLPEncoding(txData *types.TransactionData) ([]byte, error) {
+	data, err := hexutil.Decode(txData.Data)
+	if err != nil {
+		return nil, fmt.Errorf("failed to decode txData.Data: %s, err: %w", txData.Data, err)
+	}
+
+	tx := types.NewTx(&types.LegacyTx{
+		Nonce:    txData.Nonce,
+		To:       txData.To,
+		Value:    txData.Value.ToInt(),
+		Gas:      txData.Gas,
+		GasPrice: txData.GasPrice.ToInt(),
+		Data:     data,
+		V:        txData.V.ToInt(),
+		R:        txData.R.ToInt(),
+		S:        txData.S.ToInt(),
+	})
+
+	rlpTxData, err := tx.MarshalBinary()
+	if err != nil {
+		return nil, fmt.Errorf("failed to marshal binary of the tx: %+v, err: %w", tx, err)
+	}
+
+	return rlpTxData, nil
 }

common/types/chunk.go

@@ -8,7 +8,6 @@ import (
 	"strings"
 
 	"github.com/scroll-tech/go-ethereum/common"
-	"github.com/scroll-tech/go-ethereum/common/hexutil"
 	"github.com/scroll-tech/go-ethereum/core/types"
 	"github.com/scroll-tech/go-ethereum/crypto"
 )
@@ -65,23 +64,7 @@ func (c *Chunk) Encode(totalL1MessagePoppedBefore uint64) ([]byte, error) {
 			if txData.Type == types.L1MessageTxType {
 				continue
 			}
-			data, err := hexutil.Decode(txData.Data)
-			if err != nil {
-				return nil, err
-			}
-			// right now we only support legacy tx
-			tx := types.NewTx(&types.LegacyTx{
-				Nonce:    txData.Nonce,
-				To:       txData.To,
-				Value:    txData.Value.ToInt(),
-				Gas:      txData.Gas,
-				GasPrice: txData.GasPrice.ToInt(),
-				Data:     data,
-				V:        txData.V.ToInt(),
-				R:        txData.R.ToInt(),
-				S:        txData.S.ToInt(),
-			})
-			rlpTxData, err := tx.MarshalBinary()
+			rlpTxData, err := convertTxDataToRLPEncoding(txData)
 			if err != nil {
 				return nil, err
 			}
@@ -146,14 +129,10 @@ func (c *Chunk) EstimateL1CommitGas() uint64 {
 	}
 
 	numBlocks := uint64(len(c.Blocks))
-	totalL1CommitGas += 100 * numBlocks     // numBlocks times warm sload
-	totalL1CommitGas += 16                  // numBlocks field of chunk encoding in calldata
-	totalL1CommitGas += 16 * 60 * numBlocks // BlockContext in chunk
+	totalL1CommitGas += 100 * numBlocks                         // numBlocks times warm sload
+	totalL1CommitGas += CalldataNonZeroByteGas                  // numBlocks field of chunk encoding in calldata
+	totalL1CommitGas += CalldataNonZeroByteGas * numBlocks * 60 // numBlocks of BlockContext in chunk
 
-	getKeccakGas := func(size uint64) uint64 {
-		return 30 + 6*((size+31)/32) // 30 + 6 * ceil(size / 32)
-	}
-
-	totalL1CommitGas += getKeccakGas(58*numBlocks + 32*totalTxNum) // chunk hash
+	totalL1CommitGas += GetKeccak256Gas(58*numBlocks + 32*totalTxNum) // chunk hash
 	return totalL1CommitGas
 }

common/types/chunk_test.go

@@ -38,11 +38,15 @@ func TestChunkEncode(t *testing.T) {
 	wrappedBlock := &WrappedBlock{}
 	assert.NoError(t, json.Unmarshal(templateBlockTrace, wrappedBlock))
 	assert.Equal(t, uint64(0), wrappedBlock.NumL1Messages(0))
+	assert.Equal(t, uint64(298), wrappedBlock.EstimateL1CommitCalldataSize())
+	assert.Equal(t, uint64(2), wrappedBlock.NumL2Transactions())
 	chunk = &Chunk{
 		Blocks: []*WrappedBlock{
 			wrappedBlock,
 		},
 	}
+	assert.Equal(t, uint64(0), chunk.NumL1Messages(0))
+	assert.Equal(t, uint64(6006), chunk.EstimateL1CommitGas())
 	bytes, err = chunk.Encode(0)
 	hexString := hex.EncodeToString(bytes)
 	assert.NoError(t, err)
@@ -56,11 +60,15 @@ func TestChunkEncode(t *testing.T) {
 	wrappedBlock2 := &WrappedBlock{}
 	assert.NoError(t, json.Unmarshal(templateBlockTrace2, wrappedBlock2))
 	assert.Equal(t, uint64(11), wrappedBlock2.NumL1Messages(0)) // 0..=9 skipped, 10 included
+	assert.Equal(t, uint64(96), wrappedBlock2.EstimateL1CommitCalldataSize())
+	assert.Equal(t, uint64(1), wrappedBlock2.NumL2Transactions())
 	chunk = &Chunk{
 		Blocks: []*WrappedBlock{
 			wrappedBlock2,
 		},
 	}
+	assert.Equal(t, uint64(11), chunk.NumL1Messages(0))
+	assert.Equal(t, uint64(5002), chunk.EstimateL1CommitGas())
 	bytes, err = chunk.Encode(0)
 	hexString = hex.EncodeToString(bytes)
 	assert.NoError(t, err)
@@ -75,6 +83,8 @@ func TestChunkEncode(t *testing.T) {
 			wrappedBlock2,
 		},
 	}
+	assert.Equal(t, uint64(11), chunk.NumL1Messages(0))
+	assert.Equal(t, uint64(9958), chunk.EstimateL1CommitGas())
 	bytes, err = chunk.Encode(0)
 	hexString = hex.EncodeToString(bytes)
 	assert.NoError(t, err)
@@ -136,3 +146,81 @@ func TestChunkHash(t *testing.T) {
 	assert.NoError(t, err)
 	assert.Equal(t, "0x2eb7dd63bf8fc29a0f8c10d16c2ae6f9da446907c79d50f5c164d30dc8526b60", hash.Hex())
 }
+
+func TestErrorPaths(t *testing.T) {
+	// test 1: Header.Number is not a uint64
+	templateBlockTrace, err := os.ReadFile("../testdata/blockTrace_02.json")
+	assert.NoError(t, err)
+
+	wrappedBlock := &WrappedBlock{}
+
+	assert.NoError(t, json.Unmarshal(templateBlockTrace, wrappedBlock))
+	wrappedBlock.Header.Number = wrappedBlock.Header.Number.Lsh(wrappedBlock.Header.Number, 64)
+	bytes, err := wrappedBlock.Encode(0)
+	assert.Nil(t, bytes)
+	assert.Error(t, err)
+	assert.Contains(t, err.Error(), "block number is not uint64")
+
+	assert.NoError(t, json.Unmarshal(templateBlockTrace, wrappedBlock))
+	for i := 0; i < 65537; i++ {
+		wrappedBlock.Transactions = append(wrappedBlock.Transactions, wrappedBlock.Transactions[0])
+	}
+
+	bytes, err = wrappedBlock.Encode(0)
+	assert.Nil(t, bytes)
+	assert.Error(t, err)
+	assert.Contains(t, err.Error(), "number of transactions exceeds max uint16")
+
+	chunk := &Chunk{
+		Blocks: []*WrappedBlock{
+			wrappedBlock,
+		},
+	}
+
+	bytes, err = chunk.Encode(0)
+	assert.Nil(t, bytes)
+	assert.Error(t, err)
+	assert.Contains(t, err.Error(), "number of transactions exceeds max uint16")
+
+	wrappedBlock.Transactions = wrappedBlock.Transactions[:1]
+	wrappedBlock.Transactions[0].Data = "not-a-hex"
+	bytes, err = chunk.Encode(0)
+	assert.Nil(t, bytes)
+	assert.Error(t, err)
+	assert.Contains(t, err.Error(), "hex string without 0x prefix")
+
+	assert.NoError(t, json.Unmarshal(templateBlockTrace, wrappedBlock))
+	wrappedBlock.Transactions[0].TxHash = "not-a-hex"
+	_, err = chunk.Hash(0)
+	assert.Error(t, err)
+	assert.Contains(t, err.Error(), "invalid byte")
+
+	templateBlockTrace2, err := os.ReadFile("../testdata/blockTrace_04.json")
+	assert.NoError(t, err)
+
+	wrappedBlock2 := &WrappedBlock{}
+	assert.NoError(t, json.Unmarshal(templateBlockTrace2, wrappedBlock2))
+	for i := 0; i < 65535; i++ {
+		tx := &wrappedBlock2.Transactions[i]
+		txCopy := *tx
+		txCopy.Nonce = uint64(i + 1)
+		wrappedBlock2.Transactions = append(wrappedBlock2.Transactions, txCopy)
+	}
+
+	bytes, err = wrappedBlock2.Encode(0)
+	assert.Nil(t, bytes)
+	assert.Error(t, err)
+	assert.Contains(t, err.Error(), "number of L1 messages exceeds max uint16")
+
+	chunk = &Chunk{
+		Blocks: []*WrappedBlock{
+			wrappedBlock2,
+		},
+	}
+
+	bytes, err = chunk.Encode(0)
+	assert.Nil(t, bytes)
+	assert.Error(t, err)
+	assert.Contains(t, err.Error(), "number of L1 messages exceeds max uint16")
+
+}

common/types/db.go

@@ -126,8 +126,8 @@ const (
 	ProvingTaskUnassigned
 	// ProvingTaskAssigned : proving_task is assigned to be proved
 	ProvingTaskAssigned
-	// ProvingTaskProved DEPRECATED: proof has been returned by prover
-	ProvingTaskProved
+	// ProvingTaskProvedDEPRECATED DEPRECATED: proof has been returned by prover
+	ProvingTaskProvedDEPRECATED
 	// ProvingTaskVerified : proof is valid
 	ProvingTaskVerified
 	// ProvingTaskFailed : fail to generate proof
@@ -140,7 +140,7 @@ func (ps ProvingStatus) String() string {
 		return "unassigned"
 	case ProvingTaskAssigned:
 		return "assigned"
-	case ProvingTaskProved:
+	case ProvingTaskProvedDEPRECATED:
 		return "proved"
 	case ProvingTaskVerified:
 		return "verified"

common/types/db_test.go

@@ -58,8 +58,8 @@ func TestProvingStatus(t *testing.T) {
 			"assigned",
 		},
 		{
-			"ProvingTaskProved",
-			ProvingTaskProved,
+			"ProvingTaskProvedDEPRECATED",
+			ProvingTaskProvedDEPRECATED,
 			"proved",
 		},
 		{

common/types/message/message.go

@@ -13,6 +13,18 @@ import (
 	"github.com/scroll-tech/go-ethereum/rlp"
 )
 
+// ProofFailureType the proof failure type
+type ProofFailureType int
+
+const (
+	// ProofFailureUndefined the undefined type proof failure type
+	ProofFailureUndefined ProofFailureType = iota
+	// ProofFailurePanic proof failure for prover panic
+	ProofFailurePanic
+	// ProofFailureNoPanic proof failure for no prover panic
+	ProofFailureNoPanic
+)
+
 // RespStatus represents status code from prover to scroll
 type RespStatus uint32
 
@@ -199,6 +211,7 @@ func (a *ProofMsg) PublicKey() (string, error) {
 
 // TaskMsg is a wrapper type around db ProveTask type.
 type TaskMsg struct {
+	UUID            string           `json:"uuid"`
 	ID              string           `json:"id"`
 	Type            ProofType        `json:"type,omitempty"`
 	BatchTaskDetail *BatchTaskDetail `json:"batch_task_detail,omitempty"`
@@ -250,12 +263,14 @@ type ChunkInfo struct {
 
 // ChunkProof includes the proof info that are required for chunk verification and rollup.
 type ChunkProof struct {
-	StorageTrace []byte     `json:"storage_trace"`
-	Protocol     []byte     `json:"protocol"`
-	Proof        []byte     `json:"proof"`
-	Instances    []byte     `json:"instances"`
-	Vk           []byte     `json:"vk"`
-	ChunkInfo    *ChunkInfo `json:"chunk_info,omitempty"` // cross-reference between cooridinator computation and prover compution
+	StorageTrace []byte `json:"storage_trace"`
+	Protocol     []byte `json:"protocol"`
+	Proof        []byte `json:"proof"`
+	Instances    []byte `json:"instances"`
+	Vk           []byte `json:"vk"`
+	// cross-reference between cooridinator computation and prover compution
+	ChunkInfo  *ChunkInfo `json:"chunk_info,omitempty"`
+	GitVersion string     `json:"git_version,omitempty"`
 }
 
 // BatchProof includes the proof info that are required for batch verification and rollup.
@@ -263,6 +278,8 @@ type BatchProof struct {
 	Proof     []byte `json:"proof"`
 	Instances []byte `json:"instances"`
 	Vk        []byte `json:"vk"`
+	// cross-reference between cooridinator computation and prover compution
+	GitVersion string `json:"git_version,omitempty"`
 }
 
 // SanityCheck checks whether an BatchProof is in a legal format

common/types/message/message_test.go

@@ -108,7 +108,7 @@ func TestProofDetailHash(t *testing.T) {
 	}
 	hash, err := proofDetail.Hash()
 	assert.NoError(t, err)
-	expectedHash := "72a00232c1fcb100b1b67e6d12cd449e5d2d890e3a66e50f4c23499d4990766f"
+	expectedHash := "d3b57cb84b0da8043373eeb3612806fb7248d6d1b6e089846ccf3ccce2d9f31c"
 	assert.Equal(t, expectedHash, hex.EncodeToString(hash))
 }
 

common/version/version.go

@@ -3,10 +3,11 @@ package version
 import (
 	"fmt"
 	"runtime/debug"
+	"strconv"
 	"strings"
 )
 
-var tag = "v4.1.43"
+var tag = "v4.2.13"
 
 var commit = func() string {
 	if info, ok := debug.ReadBuildInfo(); ok {
@@ -44,5 +45,38 @@ func CheckScrollProverVersion(proverVersion string) bool {
 		return false
 	}
 	// compare the `scroll_prover` version
-	return remote[2] == local[2] || remote[2] == "0756ac6"
+	return remote[2] == local[2]
+}
+
+// CheckScrollProverVersionTag check the "scroll-prover" version's tag, if it's too old, return false
+func CheckScrollProverVersionTag(proverVersion string) bool {
+	// note the the version is in fact in the format of "tag-commit-scroll_prover-halo2",
+	// so split-by-'-' length should be 4
+	remote := strings.Split(proverVersion, "-")
+	if len(remote) != 4 {
+		return false
+	}
+	remoteTagNums := strings.Split(strings.TrimPrefix(remote[0], "v"), ".")
+	if len(remoteTagNums) != 3 {
+		return false
+	}
+	remoteTagMajor, err := strconv.Atoi(remoteTagNums[0])
+	if err != nil {
+		return false
+	}
+	remoteTagMinor, err := strconv.Atoi(remoteTagNums[1])
+	if err != nil {
+		return false
+	}
+	remoteTagPatch, err := strconv.Atoi(remoteTagNums[2])
+	if err != nil {
+		return false
+	}
+	if remoteTagMajor < 4 {
+		return false
+	}
+	if remoteTagMinor == 1 && remoteTagPatch < 98 {
+		return false
+	}
+	return true
 }

contracts/docs/apis/L1ERC1155Gateway.md

@@ -260,6 +260,23 @@ function owner() external view returns (address)
 *Returns the address of the current owner.*
 
 
+#### Returns
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | address | undefined |
+
+### rateLimiter
+
+```solidity
+function rateLimiter() external view returns (address)
+```
+
+The address of token rate limiter contract.
+
+
+
+
 #### Returns
 
 | Name | Type | Description |
@@ -354,6 +371,22 @@ function transferOwnership(address newOwner) external nonpayable
 |---|---|---|
 | newOwner | address | undefined |
 
+### updateRateLimiter
+
+```solidity
+function updateRateLimiter(address _newRateLimiter) external nonpayable
+```
+
+Update rate limiter contract.
+
+*This function can only called by contract owner.*
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _newRateLimiter | address | The address of new rate limiter contract. |
+
 ### updateTokenMapping
 
 ```solidity
@@ -530,6 +563,23 @@ Emitted when some ERC1155 token is refunded.
 | tokenId  | uint256 | undefined |
 | amount  | uint256 | undefined |
 
+### UpdateRateLimiter
+
+```solidity
+event UpdateRateLimiter(address indexed _oldRateLimiter, address indexed _newRateLimiter)
+```
+
+Emitted when owner updates rate limiter contract.
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _oldRateLimiter `indexed` | address | undefined |
+| _newRateLimiter `indexed` | address | undefined |
+
 ### UpdateTokenMapping
 
 ```solidity

contracts/docs/apis/L1ERC721Gateway.md

@@ -227,6 +227,23 @@ function owner() external view returns (address)
 *Returns the address of the current owner.*
 
 
+#### Returns
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | address | undefined |
+
+### rateLimiter
+
+```solidity
+function rateLimiter() external view returns (address)
+```
+
+The address of token rate limiter contract.
+
+
+
+
 #### Returns
 
 | Name | Type | Description |
@@ -299,6 +316,22 @@ function transferOwnership(address newOwner) external nonpayable
 |---|---|---|
 | newOwner | address | undefined |
 
+### updateRateLimiter
+
+```solidity
+function updateRateLimiter(address _newRateLimiter) external nonpayable
+```
+
+Update rate limiter contract.
+
+*This function can only called by contract owner.*
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _newRateLimiter | address | The address of new rate limiter contract. |
+
 ### updateTokenMapping
 
 ```solidity
@@ -469,6 +502,23 @@ Emitted when some ERC721 token is refunded.
 | recipient `indexed` | address | undefined |
 | tokenId  | uint256 | undefined |
 
+### UpdateRateLimiter
+
+```solidity
+event UpdateRateLimiter(address indexed _oldRateLimiter, address indexed _newRateLimiter)
+```
+
+Emitted when owner updates rate limiter contract.
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _oldRateLimiter `indexed` | address | undefined |
+| _newRateLimiter `indexed` | address | undefined |
+
 ### UpdateTokenMapping
 
 ```solidity

contracts/docs/apis/L1ScrollMessenger.md

@@ -239,6 +239,23 @@ Mapping from queue index to previous replay queue index.
 |---|---|---|
 | _0 | uint256 | undefined |
 
+### rateLimiter
+
+```solidity
+function rateLimiter() external view returns (address)
+```
+
+The address of ETH rate limiter contract.
+
+
+
+
+#### Returns
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | address | undefined |
+
 ### relayMessageWithProof
 
 ```solidity
@@ -436,6 +453,22 @@ Update max replay times.
 |---|---|---|
 | _newMaxReplayTimes | uint256 | The new max replay times. |
 
+### updateRateLimiter
+
+```solidity
+function updateRateLimiter(address _newRateLimiter) external nonpayable
+```
+
+Update rate limiter contract.
+
+*This function can only called by contract owner.*
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _newRateLimiter | address | The address of new rate limiter contract. |
+
 ### xDomainMessageSender
 
 ```solidity
@@ -609,5 +642,22 @@ Emitted when the maximum number of times each message can be replayed is updated
 | oldMaxReplayTimes  | uint256 | undefined |
 | newMaxReplayTimes  | uint256 | undefined |
 
+### UpdateRateLimiter
+
+```solidity
+event UpdateRateLimiter(address indexed _oldRateLimiter, address indexed _newRateLimiter)
+```
+
+Emitted when owner updates rate limiter contract.
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _oldRateLimiter `indexed` | address | undefined |
+| _newRateLimiter `indexed` | address | undefined |
+
 
 

contracts/docs/apis/L1StandardERC20Gateway.md

@@ -225,6 +225,23 @@ function owner() external view returns (address)
 *Returns the address of the current owner.*
 
 
+#### Returns
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | address | undefined |
+
+### rateLimiter
+
+```solidity
+function rateLimiter() external view returns (address)
+```
+
+The address of token rate limiter contract.
+
+
+
+
 #### Returns
 
 | Name | Type | Description |
@@ -275,6 +292,22 @@ function transferOwnership(address newOwner) external nonpayable
 |---|---|---|
 | newOwner | address | undefined |
 
+### updateRateLimiter
+
+```solidity
+function updateRateLimiter(address _newRateLimiter) external nonpayable
+```
+
+Update rate limiter contract.
+
+*This function can only called by contract owner.*
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _newRateLimiter | address | The address of new rate limiter contract. |
+
 
 
 ## Events
@@ -372,5 +405,22 @@ Emitted when some ERC20 token is refunded.
 | recipient `indexed` | address | undefined |
 | amount  | uint256 | undefined |
 
+### UpdateRateLimiter
+
+```solidity
+event UpdateRateLimiter(address indexed _oldRateLimiter, address indexed _newRateLimiter)
+```
+
+Emitted when owner updates rate limiter contract.
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _oldRateLimiter `indexed` | address | undefined |
+| _newRateLimiter `indexed` | address | undefined |
+
 
 

contracts/docs/apis/L1WETHGateway.md

@@ -223,6 +223,23 @@ function owner() external view returns (address)
 *Returns the address of the current owner.*
 
 
+#### Returns
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | address | undefined |
+
+### rateLimiter
+
+```solidity
+function rateLimiter() external view returns (address)
+```
+
+The address of token rate limiter contract.
+
+
+
+
 #### Returns
 
 | Name | Type | Description |
@@ -273,6 +290,22 @@ function transferOwnership(address newOwner) external nonpayable
 |---|---|---|
 | newOwner | address | undefined |
 
+### updateRateLimiter
+
+```solidity
+function updateRateLimiter(address _newRateLimiter) external nonpayable
+```
+
+Update rate limiter contract.
+
+*This function can only called by contract owner.*
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _newRateLimiter | address | The address of new rate limiter contract. |
+
 
 
 ## Events
@@ -370,5 +403,22 @@ Emitted when some ERC20 token is refunded.
 | recipient `indexed` | address | undefined |
 | amount  | uint256 | undefined |
 
+### UpdateRateLimiter
+
+```solidity
+event UpdateRateLimiter(address indexed _oldRateLimiter, address indexed _newRateLimiter)
+```
+
+Emitted when owner updates rate limiter contract.
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _oldRateLimiter `indexed` | address | undefined |
+| _newRateLimiter `indexed` | address | undefined |
+
 
 

contracts/docs/apis/L2ERC1155Gateway.md

@@ -205,6 +205,23 @@ function owner() external view returns (address)
 *Returns the address of the current owner.*
 
 
+#### Returns
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | address | undefined |
+
+### rateLimiter
+
+```solidity
+function rateLimiter() external view returns (address)
+```
+
+The address of token rate limiter contract.
+
+
+
+
 #### Returns
 
 | Name | Type | Description |
@@ -299,6 +316,22 @@ function transferOwnership(address newOwner) external nonpayable
 |---|---|---|
 | newOwner | address | undefined |
 
+### updateRateLimiter
+
+```solidity
+function updateRateLimiter(address _newRateLimiter) external nonpayable
+```
+
+Update rate limiter contract.
+
+*This function can only called by contract owner.*
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _newRateLimiter | address | The address of new rate limiter contract. |
+
 ### updateTokenMapping
 
 ```solidity
@@ -455,6 +488,23 @@ event OwnershipTransferred(address indexed previousOwner, address indexed newOwn
 | previousOwner `indexed` | address | undefined |
 | newOwner `indexed` | address | undefined |
 
+### UpdateRateLimiter
+
+```solidity
+event UpdateRateLimiter(address indexed _oldRateLimiter, address indexed _newRateLimiter)
+```
+
+Emitted when owner updates rate limiter contract.
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _oldRateLimiter `indexed` | address | undefined |
+| _newRateLimiter `indexed` | address | undefined |
+
 ### UpdateTokenMapping
 
 ```solidity

contracts/docs/apis/L2ERC721Gateway.md

@@ -174,6 +174,23 @@ function owner() external view returns (address)
 *Returns the address of the current owner.*
 
 
+#### Returns
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | address | undefined |
+
+### rateLimiter
+
+```solidity
+function rateLimiter() external view returns (address)
+```
+
+The address of token rate limiter contract.
+
+
+
+
 #### Returns
 
 | Name | Type | Description |
@@ -246,6 +263,22 @@ function transferOwnership(address newOwner) external nonpayable
 |---|---|---|
 | newOwner | address | undefined |
 
+### updateRateLimiter
+
+```solidity
+function updateRateLimiter(address _newRateLimiter) external nonpayable
+```
+
+Update rate limiter contract.
+
+*This function can only called by contract owner.*
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _newRateLimiter | address | The address of new rate limiter contract. |
+
 ### updateTokenMapping
 
 ```solidity
@@ -397,6 +430,23 @@ event OwnershipTransferred(address indexed previousOwner, address indexed newOwn
 | previousOwner `indexed` | address | undefined |
 | newOwner `indexed` | address | undefined |
 
+### UpdateRateLimiter
+
+```solidity
+event UpdateRateLimiter(address indexed _oldRateLimiter, address indexed _newRateLimiter)
+```
+
+Emitted when owner updates rate limiter contract.
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _oldRateLimiter `indexed` | address | undefined |
+| _newRateLimiter `indexed` | address | undefined |
+
 ### UpdateTokenMapping
 
 ```solidity

contracts/docs/apis/L2ScrollMessenger.md

@@ -104,45 +104,6 @@ Mapping from L2 message hash to sent status.
 |---|---|---|
 | _0 | bool | undefined |
 
-### l1MessageFailedTimes
-
-```solidity
-function l1MessageFailedTimes(bytes32) external view returns (uint256)
-```
-
-Mapping from L1 message hash to the number of failure times.
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | bytes32 | undefined |
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | uint256 | undefined |
-
-### maxFailedExecutionTimes
-
-```solidity
-function maxFailedExecutionTimes() external view returns (uint256)
-```
-
-The maximum number of times each L1 message can fail on L2.
-
-
-
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | uint256 | undefined |
-
 ### messageQueue
 
 ```solidity
@@ -194,6 +155,23 @@ function paused() external view returns (bool)
 |---|---|---|
 | _0 | bool | undefined |
 
+### rateLimiter
+
+```solidity
+function rateLimiter() external view returns (address)
+```
+
+The address of ETH rate limiter contract.
+
+
+
+
+#### Returns
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | address | undefined |
+
 ### relayMessage
 
 ```solidity
@@ -312,13 +290,13 @@ Update fee vault contract.
 |---|---|---|
 | _newFeeVault | address | The address of new fee vault contract. |
 
-### updateMaxFailedExecutionTimes
+### updateRateLimiter
 
 ```solidity
-function updateMaxFailedExecutionTimes(uint256 _newMaxFailedExecutionTimes) external nonpayable
+function updateRateLimiter(address _newRateLimiter) external nonpayable
 ```
 
-Update max failed execution times.
+Update rate limiter contract.
 
 *This function can only called by contract owner.*
 
@@ -326,7 +304,7 @@ Update max failed execution times.
 
 | Name | Type | Description |
 |---|---|---|
-| _newMaxFailedExecutionTimes | uint256 | The new max failed execution times. |
+| _newRateLimiter | address | The address of new rate limiter contract. |
 
 ### xDomainMessageSender
 
@@ -501,5 +479,22 @@ Emitted when the maximum number of times each message can fail in L2 is updated.
 | oldMaxFailedExecutionTimes  | uint256 | undefined |
 | newMaxFailedExecutionTimes  | uint256 | undefined |
 
+### UpdateRateLimiter
+
+```solidity
+event UpdateRateLimiter(address indexed _oldRateLimiter, address indexed _newRateLimiter)
+```
+
+Emitted when owner updates rate limiter contract.
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _oldRateLimiter `indexed` | address | undefined |
+| _newRateLimiter `indexed` | address | undefined |
+
 
 

contracts/docs/apis/L2StandardERC20Gateway.md

@@ -139,6 +139,23 @@ function owner() external view returns (address)
 *Returns the address of the current owner.*
 
 
+#### Returns
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | address | undefined |
+
+### rateLimiter
+
+```solidity
+function rateLimiter() external view returns (address)
+```
+
+The address of token rate limiter contract.
+
+
+
+
 #### Returns
 
 | Name | Type | Description |
@@ -206,6 +223,22 @@ function transferOwnership(address newOwner) external nonpayable
 |---|---|---|
 | newOwner | address | undefined |
 
+### updateRateLimiter
+
+```solidity
+function updateRateLimiter(address _newRateLimiter) external nonpayable
+```
+
+Update rate limiter contract.
+
+*This function can only called by contract owner.*
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _newRateLimiter | address | The address of new rate limiter contract. |
+
 ### withdrawERC20
 
 ```solidity
@@ -321,6 +354,23 @@ event OwnershipTransferred(address indexed previousOwner, address indexed newOwn
 | previousOwner `indexed` | address | undefined |
 | newOwner `indexed` | address | undefined |
 
+### UpdateRateLimiter
+
+```solidity
+event UpdateRateLimiter(address indexed _oldRateLimiter, address indexed _newRateLimiter)
+```
+
+Emitted when owner updates rate limiter contract.
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _oldRateLimiter `indexed` | address | undefined |
+| _newRateLimiter `indexed` | address | undefined |
+
 ### WithdrawERC20
 
 ```solidity

contracts/docs/apis/L2WETHGateway.md

@@ -172,6 +172,23 @@ function owner() external view returns (address)
 *Returns the address of the current owner.*
 
 
+#### Returns
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | address | undefined |
+
+### rateLimiter
+
+```solidity
+function rateLimiter() external view returns (address)
+```
+
+The address of token rate limiter contract.
+
+
+
+
 #### Returns
 
 | Name | Type | Description |
@@ -222,6 +239,22 @@ function transferOwnership(address newOwner) external nonpayable
 |---|---|---|
 | newOwner | address | undefined |
 
+### updateRateLimiter
+
+```solidity
+function updateRateLimiter(address _newRateLimiter) external nonpayable
+```
+
+Update rate limiter contract.
+
+*This function can only called by contract owner.*
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _newRateLimiter | address | The address of new rate limiter contract. |
+
 ### withdrawERC20
 
 ```solidity
@@ -337,6 +370,23 @@ event OwnershipTransferred(address indexed previousOwner, address indexed newOwn
 | previousOwner `indexed` | address | undefined |
 | newOwner `indexed` | address | undefined |
 
+### UpdateRateLimiter
+
+```solidity
+event UpdateRateLimiter(address indexed _oldRateLimiter, address indexed _newRateLimiter)
+```
+
+Emitted when owner updates rate limiter contract.
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _oldRateLimiter `indexed` | address | undefined |
+| _newRateLimiter `indexed` | address | undefined |
+
 ### WithdrawERC20
 
 ```solidity

contracts/scripts/foundry/InitializeL1BridgeContracts.s.sol

@@ -12,6 +12,7 @@ import {L1ScrollMessenger} from "../../src/L1/L1ScrollMessenger.sol";
 import {L1StandardERC20Gateway} from "../../src/L1/gateways/L1StandardERC20Gateway.sol";
 import {L1WETHGateway} from "../../src/L1/gateways/L1WETHGateway.sol";
 import {L1DAIGateway} from "../../src/L1/gateways/L1DAIGateway.sol";
+import {MultipleVersionRollupVerifier} from "../../src/L1/rollup/MultipleVersionRollupVerifier.sol";
 import {ScrollChain} from "../../src/L1/rollup/ScrollChain.sol";
 import {L1MessageQueue} from "../../src/L1/rollup/L1MessageQueue.sol";
 import {L2GasPriceOracle} from "../../src/L1/rollup/L2GasPriceOracle.sol";
@@ -71,6 +72,9 @@ contract InitializeL1BridgeContracts is Script {
         ScrollChain(L1_SCROLL_CHAIN_PROXY_ADDR).addSequencer(L1_COMMIT_SENDER_ADDRESS);
         ScrollChain(L1_SCROLL_CHAIN_PROXY_ADDR).addProver(L1_FINALIZE_SENDER_ADDRESS);
 
+        // initialize MultipleVersionRollupVerifier
+        MultipleVersionRollupVerifier(L1_MULTIPLE_VERSION_ROLLUP_VERIFIER_ADDR).initialize(L1_SCROLL_CHAIN_PROXY_ADDR);
+
         // initialize L2GasPriceOracle
         L2GasPriceOracle(L2_GAS_PRICE_ORACLE_PROXY_ADDR).initialize(
             21000, // _txGas

contracts/scripts/initialize_l1_erc20_gateway.ts

@@ -25,18 +25,18 @@ async function main() {
   const L2StandardERC20Impl = process.env.L2_SCROLL_STANDARD_ERC20_ADDR!;
   const L2StandardERC20FactoryAddress = process.env.L2_SCROLL_STANDARD_ERC20_FACTORY_ADDR!;
 
-  // if ((await L1StandardERC20Gateway.counterpart()) === constants.AddressZero) {
-  const tx = await L1StandardERC20Gateway.initialize(
-    L2StandardERC20GatewayAddress,
-    L1GatewayRouterAddress,
-    L1ScrollMessengerAddress,
-    L2StandardERC20Impl,
-    L2StandardERC20FactoryAddress
-  );
-  console.log("initialize L1StandardERC20Gateway, hash:", tx.hash);
-  const receipt = await tx.wait();
-  console.log(`✅ Done, gas used: ${receipt.gasUsed}`);
-  // }
+  if ((await L1StandardERC20Gateway.counterpart()) === constants.AddressZero) {
+    const tx = await L1StandardERC20Gateway.initialize(
+      L2StandardERC20GatewayAddress,
+      L1GatewayRouterAddress,
+      L1ScrollMessengerAddress,
+      L2StandardERC20Impl,
+      L2StandardERC20FactoryAddress
+    );
+    console.log("initialize L1StandardERC20Gateway, hash:", tx.hash);
+    const receipt = await tx.wait();
+    console.log(`✅ Done, gas used: ${receipt.gasUsed}`);
+  }
 }
 
 // We recommend this pattern to be able to use async/await everywhere

contracts/scripts/initialize_l1_gateway_router.ts

@@ -23,16 +23,16 @@ async function main() {
   const L1ScrollMessengerAddress = addressFile.get("L1ScrollMessenger.proxy");
   const L2GatewayRouterAddress = process.env.L2_GATEWAY_ROUTER_PROXY_ADDR!;
 
-  // if ((await L1GatewayRouter.counterpart()) === constants.AddressZero) {
-  const tx = await L1GatewayRouter.initialize(
-    L1StandardERC20GatewayAddress,
-    L2GatewayRouterAddress,
-    L1ScrollMessengerAddress
-  );
-  console.log("initialize L1StandardERC20Gateway, hash:", tx.hash);
-  const receipt = await tx.wait();
-  console.log(`✅ Done, gas used: ${receipt.gasUsed}`);
-  // }
+  if ((await L1GatewayRouter.counterpart()) === constants.AddressZero) {
+    const tx = await L1GatewayRouter.initialize(
+      L1StandardERC20GatewayAddress,
+      L2GatewayRouterAddress,
+      L1ScrollMessengerAddress
+    );
+    console.log("initialize L1StandardERC20Gateway, hash:", tx.hash);
+    const receipt = await tx.wait();
+    console.log(`✅ Done, gas used: ${receipt.gasUsed}`);
+  }
 }
 
 // We recommend this pattern to be able to use async/await everywhere

contracts/scripts/initialize_l1_messenger.ts

@@ -21,12 +21,12 @@ async function main() {
 
   const ZKRollupAddress = addressFile.get("ZKRollup.proxy");
 
-  // if ((await L1ScrollMessenger.rollup()) === constants.AddressZero) {
-  const tx = await L1ScrollMessenger.initialize(ZKRollupAddress);
-  console.log("initialize L1StandardERC20Gateway, hash:", tx.hash);
-  const receipt = await tx.wait();
-  console.log(`✅ Done, gas used: ${receipt.gasUsed}`);
-  // }
+  if ((await L1ScrollMessenger.rollup()) === constants.AddressZero) {
+    const tx = await L1ScrollMessenger.initialize(ZKRollupAddress);
+    console.log("initialize L1StandardERC20Gateway, hash:", tx.hash);
+    const receipt = await tx.wait();
+    console.log(`✅ Done, gas used: ${receipt.gasUsed}`);
+  }
 }
 
 // We recommend this pattern to be able to use async/await everywhere

contracts/scripts/initialize_l2_erc20_gateway.ts

@@ -24,17 +24,17 @@ async function main() {
   const L2StandardERC20FactoryAddress = addressFile.get("ScrollStandardERC20Factory");
   const L1StandardERC20GatewayAddress = process.env.L1_STANDARD_ERC20_GATEWAY_PROXY_ADDR!;
 
-  // if ((await L2StandardERC20Gateway.counterpart()) === constants.AddressZero) {
-  const tx = await L2StandardERC20Gateway.initialize(
-    L1StandardERC20GatewayAddress,
-    L2GatewayRouterAddress,
-    L2ScrollMessengerAddress,
-    L2StandardERC20FactoryAddress
-  );
-  console.log("initialize L2StandardERC20Gateway, hash:", tx.hash);
-  const receipt = await tx.wait();
-  console.log(`✅ Done, gas used: ${receipt.gasUsed}`);
-  // }
+  if ((await L2StandardERC20Gateway.counterpart()) === constants.AddressZero) {
+    const tx = await L2StandardERC20Gateway.initialize(
+      L1StandardERC20GatewayAddress,
+      L2GatewayRouterAddress,
+      L2ScrollMessengerAddress,
+      L2StandardERC20FactoryAddress
+    );
+    console.log("initialize L2StandardERC20Gateway, hash:", tx.hash);
+    const receipt = await tx.wait();
+    console.log(`✅ Done, gas used: ${receipt.gasUsed}`);
+  }
 }
 
 // We recommend this pattern to be able to use async/await everywhere

contracts/scripts/initialize_l2_gateway_router.ts

@@ -23,16 +23,16 @@ async function main() {
   const L2ScrollMessengerAddress = addressFile.get("L2ScrollMessenger");
   const L1GatewayRouterAddress = process.env.L1_GATEWAY_ROUTER_PROXY_ADDR!;
 
-  // if ((await L2GatewayRouter.counterpart()) === constants.AddressZero) {
-  const tx = await L2GatewayRouter.initialize(
-    L2StandardERC20GatewayAddress,
-    L1GatewayRouterAddress,
-    L2ScrollMessengerAddress
-  );
-  console.log("initialize L1StandardERC20Gateway, hash:", tx.hash);
-  const receipt = await tx.wait();
-  console.log(`✅ Done, gas used: ${receipt.gasUsed}`);
-  // }
+  if ((await L2GatewayRouter.counterpart()) === constants.AddressZero) {
+    const tx = await L2GatewayRouter.initialize(
+      L2StandardERC20GatewayAddress,
+      L1GatewayRouterAddress,
+      L2ScrollMessengerAddress
+    );
+    console.log("initialize L1StandardERC20Gateway, hash:", tx.hash);
+    const receipt = await tx.wait();
+    console.log(`✅ Done, gas used: ${receipt.gasUsed}`);
+  }
 }
 
 // We recommend this pattern to be able to use async/await everywhere

contracts/src/L1/L1ScrollMessenger.sol

@@ -98,6 +98,9 @@ contract L1ScrollMessenger is ScrollMessengerBase, IL1ScrollMessenger {
 
         rollup = _rollup;
         messageQueue = _messageQueue;
+
+        maxReplayTimes = 3;
+        emit UpdateMaxReplayTimes(0, 3);
     }
 
     /*****************************
@@ -149,7 +152,7 @@ contract L1ScrollMessenger is ScrollMessengerBase, IL1ScrollMessenger {
 
         // @note check more `_to` address to avoid attack in the future when we add more gateways.
         require(_to != messageQueue, "Forbid to call message queue");
-        require(_to != address(this), "Forbid to call self");
+        _validateTargetAddress(_to);
 
         // @note This usually will never happen, just in case.
         require(_from != xDomainMessageSender, "Invalid message sender");
@@ -312,6 +315,8 @@ contract L1ScrollMessenger is ScrollMessengerBase, IL1ScrollMessenger {
         uint256 _gasLimit,
         address _refundAddress
     ) internal nonReentrant {
+        _addUsedAmount(_value);
+
         address _messageQueue = messageQueue; // gas saving
         address _counterpart = counterpart; // gas saving
 

contracts/src/L1/gateways/L1ERC20Gateway.sol

@@ -14,8 +14,6 @@ import {ScrollConstants} from "../../libraries/constants/ScrollConstants.sol";
 import {ScrollGatewayBase} from "../../libraries/gateway/ScrollGatewayBase.sol";
 import {IMessageDropCallback} from "../../libraries/callbacks/IMessageDropCallback.sol";
 
-// solhint-disable no-empty-blocks
-
 abstract contract L1ERC20Gateway is IL1ERC20Gateway, IMessageDropCallback, ScrollGatewayBase {
     using SafeERC20Upgradeable for IERC20Upgradeable;
 
@@ -68,7 +66,7 @@ abstract contract L1ERC20Gateway is IL1ERC20Gateway, IMessageDropCallback, Scrol
         address _to,
         uint256 _amount,
         bytes calldata _data
-    ) external payable override onlyCallByCounterpart nonReentrant {
+    ) external payable virtual override onlyCallByCounterpart nonReentrant {
         _beforeFinalizeWithdrawERC20(_l1Token, _l2Token, _from, _to, _amount, _data);
 
         // @note can possible trigger reentrant call to this contract or messenger,
@@ -161,6 +159,9 @@ abstract contract L1ERC20Gateway is IL1ERC20Gateway, IMessageDropCallback, Scrol
         // ignore weird fee on transfer token
         require(_amount > 0, "deposit zero amount");
 
+        // rate limit
+        _addUsedAmount(_token, _amount);
+
         return (_from, _amount, _data);
     }
 

contracts/src/L1/gateways/L1ETHGateway.sol

@@ -52,7 +52,7 @@ contract L1ETHGateway is ScrollGatewayBase, IL1ETHGateway, IMessageDropCallback
         address _to,
         uint256 _amount,
         uint256 _gasLimit
-    ) public payable override {
+    ) external payable override {
         _deposit(_to, _amount, new bytes(0), _gasLimit);
     }
 
@@ -124,6 +124,8 @@ contract L1ETHGateway is ScrollGatewayBase, IL1ETHGateway, IMessageDropCallback
             (_from, _data) = abi.decode(_data, (address, bytes));
         }
 
+        // @note no rate limit here, since ETH is limited in messenger
+
         // 2. Generate message passed to L1ScrollMessenger.
         bytes memory _message = abi.encodeCall(IL2ETHGateway.finalizeDepositETH, (_from, _to, _amount, _data));
 

contracts/src/L1/gateways/usdc/L1USDCGateway.sol

@@ -2,10 +2,176 @@
 
 pragma solidity =0.8.16;
 
-import {L1CustomERC20Gateway} from "../L1CustomERC20Gateway.sol";
+import {OwnableUpgradeable} from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
+import {IERC20Upgradeable} from "@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol";
 
-// solhint-disable no-empty-blocks
+import {IFiatToken} from "../../../interfaces/IFiatToken.sol";
+import {IUSDCBurnableSourceBridge} from "../../../interfaces/IUSDCBurnableSourceBridge.sol";
+import {IL2ERC20Gateway} from "../../../L2/gateways/IL2ERC20Gateway.sol";
+import {IL1ScrollMessenger} from "../../IL1ScrollMessenger.sol";
+import {IL1ERC20Gateway} from "../IL1ERC20Gateway.sol";
 
-contract L1USDCGateway is L1CustomERC20Gateway {
+import {ScrollGatewayBase} from "../../../libraries/gateway/ScrollGatewayBase.sol";
+import {L1ERC20Gateway} from "../L1ERC20Gateway.sol";
 
+/// @title L1USDCGateway
+/// @notice The `L1USDCGateway` contract is used to deposit `USDC` token in layer 1 and
+/// finalize withdraw `USDC` from layer 2, before USDC become native in layer 2.
+contract L1USDCGateway is L1ERC20Gateway, IUSDCBurnableSourceBridge {
+    /*************
+     * Constants *
+     *************/
+
+    /// @notice The address of L1 USDC address.
+    // solhint-disable-next-line var-name-mixedcase
+    address public immutable l1USDC;
+
+    /// @notice The address of L2 USDC address.
+    address public immutable l2USDC;
+
+    /*************
+     * Variables *
+     *************/
+
+    /// @notice The address of caller from Circle.
+    address public circleCaller;
+
+    /// @notice The flag indicates whether USDC deposit is paused.
+    bool public depositPaused;
+
+    /// @notice The flag indicates whether USDC withdrawal is paused.
+    /// @dev This is not necessary to be set `true` since we will set `L2USDCGateway.withdrawPaused` first.
+    ///      This is kept just in case and will be set after all pending messages are relayed.
+    bool public withdrawPaused;
+
+    /// @notice The total amount of bridged USDC in this contract.
+    /// @dev Only deposited USDC will count. Accidentally transferred USDC will be ignored.
+    uint256 public totalBridgedUSDC;
+
+    /***************
+     * Constructor *
+     ***************/
+
+    constructor(address _l1USDC, address _l2USDC) {
+        _disableInitializers();
+
+        l1USDC = _l1USDC;
+        l2USDC = _l2USDC;
+    }
+
+    /// @notice Initialize the storage of L1WETHGateway.
+    /// @param _counterpart The address of L2ETHGateway in L2.
+    /// @param _router The address of L1GatewayRouter.
+    /// @param _messenger The address of L1ScrollMessenger.
+    function initialize(
+        address _counterpart,
+        address _router,
+        address _messenger
+    ) external initializer {
+        require(_router != address(0), "zero router address");
+        ScrollGatewayBase._initialize(_counterpart, _router, _messenger);
+    }
+
+    /*************************
+     * Public View Functions *
+     *************************/
+
+    /// @inheritdoc IL1ERC20Gateway
+    function getL2ERC20Address(address) public view override returns (address) {
+        return l2USDC;
+    }
+
+    /*******************************
+     * Public Restricted Functions *
+     *******************************/
+
+    /// @inheritdoc IUSDCBurnableSourceBridge
+    function burnAllLockedUSDC() external override {
+        require(msg.sender == circleCaller, "only circle caller");
+
+        // @note Only bridged USDC will be burned. We may refund the rest if possible.
+        uint256 _balance = totalBridgedUSDC;
+        totalBridgedUSDC = 0;
+
+        IFiatToken(l1USDC).burn(_balance);
+    }
+
+    /// @notice Update the Circle EOA address.
+    /// @param _caller The address to update.
+    function updateCircleCaller(address _caller) external onlyOwner {
+        circleCaller = _caller;
+    }
+
+    /// @notice Change the deposit pause status of this contract.
+    /// @param _paused The new status, `true` means paused and `false` means not paused.
+    function pauseDeposit(bool _paused) external onlyOwner {
+        depositPaused = _paused;
+    }
+
+    /// @notice Change the withdraw pause status of this contract.
+    /// @param _paused The new status, `true` means paused and `false` means not paused.
+    function pauseWithdraw(bool _paused) external onlyOwner {
+        withdrawPaused = _paused;
+    }
+
+    /**********************
+     * Internal Functions *
+     **********************/
+
+    /// @inheritdoc L1ERC20Gateway
+    function _beforeFinalizeWithdrawERC20(
+        address _l1Token,
+        address _l2Token,
+        address,
+        address,
+        uint256 _amount,
+        bytes calldata
+    ) internal virtual override {
+        require(msg.value == 0, "nonzero msg.value");
+        require(_l1Token == l1USDC, "l1 token not USDC");
+        require(_l2Token == l2USDC, "l2 token not USDC");
+        require(!withdrawPaused, "withdraw paused");
+
+        totalBridgedUSDC -= _amount;
+    }
+
+    /// @inheritdoc L1ERC20Gateway
+    function _beforeDropMessage(
+        address,
+        address,
+        uint256 _amount
+    ) internal virtual override {
+        require(msg.value == 0, "nonzero msg.value");
+        totalBridgedUSDC -= _amount;
+    }
+
+    /// @inheritdoc L1ERC20Gateway
+    function _deposit(
+        address _token,
+        address _to,
+        uint256 _amount,
+        bytes memory _data,
+        uint256 _gasLimit
+    ) internal virtual override nonReentrant {
+        require(_amount > 0, "deposit zero amount");
+        require(_token == l1USDC, "only USDC is allowed");
+        require(!depositPaused, "deposit paused");
+
+        // 1. Transfer token into this contract.
+        address _from;
+        (_from, _amount, _data) = _transferERC20In(_token, _amount, _data);
+        require(_data.length == 0, "call is not allowed");
+        totalBridgedUSDC += _amount;
+
+        // 2. Generate message passed to L2USDCGateway.
+        bytes memory _message = abi.encodeCall(
+            IL2ERC20Gateway.finalizeDepositERC20,
+            (_token, l2USDC, _from, _to, _amount, _data)
+        );
+
+        // 3. Send message to L1ScrollMessenger.
+        IL1ScrollMessenger(messenger).sendMessage{value: msg.value}(counterpart, 0, _message, _gasLimit, _from);
+
+        emit DepositERC20(_token, l2USDC, _from, _to, _amount, _data);
+    }
 }

contracts/src/L1/gateways/usdc/draft-L1USDCGatewayCCTP.sol

@@ -0,0 +1,180 @@
+// SPDX-License-Identifier: MIT
+
+pragma solidity =0.8.16;
+
+import {OwnableUpgradeable} from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
+
+import {ITokenMessenger} from "../../../interfaces/ITokenMessenger.sol";
+import {IL2ERC20Gateway} from "../../../L2/gateways/IL2ERC20Gateway.sol";
+import {IL1ScrollMessenger} from "../../IL1ScrollMessenger.sol";
+import {IL1ERC20Gateway} from "../IL1ERC20Gateway.sol";
+
+import {CCTPGatewayBase} from "../../../libraries/gateway/CCTPGatewayBase.sol";
+import {ScrollGatewayBase} from "../../../libraries/gateway/ScrollGatewayBase.sol";
+import {L1ERC20Gateway} from "../L1ERC20Gateway.sol";
+
+/// @title L1USDCGatewayCCTP
+/// @notice The `L1USDCGateway` contract is used to deposit `USDC` token in layer 1 and
+/// finalize withdraw `USDC` from layer 2, after USDC become native in layer 2.
+contract L1USDCGatewayCCTP is CCTPGatewayBase, L1ERC20Gateway {
+    /***************
+     * Constructor *
+     ***************/
+
+    constructor(
+        address _l1USDC,
+        address _l2USDC,
+        uint32 _destinationDomain
+    ) CCTPGatewayBase(_l1USDC, _l2USDC, _destinationDomain) {
+        _disableInitializers();
+    }
+
+    /// @notice Initialize the storage of L1USDCGatewayCCTP.
+    /// @param _counterpart The address of L2USDCGatewayCCTP in L2.
+    /// @param _router The address of L1GatewayRouter.
+    /// @param _messenger The address of L1ScrollMessenger.
+    /// @param _cctpMessenger The address of TokenMessenger in local domain.
+    /// @param _cctpTransmitter The address of MessageTransmitter in local domain.
+    function initialize(
+        address _counterpart,
+        address _router,
+        address _messenger,
+        address _cctpMessenger,
+        address _cctpTransmitter
+    ) external initializer {
+        require(_router != address(0), "zero router address");
+        ScrollGatewayBase._initialize(_counterpart, _router, _messenger);
+        CCTPGatewayBase._initialize(_cctpMessenger, _cctpTransmitter);
+    }
+
+    /*************************
+     * Public View Functions *
+     *************************/
+
+    /// @inheritdoc IL1ERC20Gateway
+    function getL2ERC20Address(address) public view override returns (address) {
+        return l2USDC;
+    }
+
+    /*****************************
+     * Public Mutating Functions *
+     *****************************/
+
+    /// @notice Relay cross chain message and claim USDC that has been cross chained.
+    /// @dev The `_scrollMessage` is actually encoded calldata for `L1ScrollMessenger.relayMessageWithProof`.
+    ///
+    /// @dev This helper function is aimed to claim USDC in single transaction.
+    ///      Normally, an user should call `L1ScrollMessenger.relayMessageWithProof` first,
+    ///      then `L1USDCGatewayCCTP.claimUSDC`.
+    ///
+    /// @param _nonce The nonce of the message from CCTP.
+    /// @param _cctpMessage The message passed to MessageTransmitter contract in CCTP.
+    /// @param _cctpSignature The message passed to MessageTransmitter contract in CCTP.
+    /// @param _scrollMessage The message passed to L1ScrollMessenger contract.
+    function relayAndClaimUSDC(
+        uint256 _nonce,
+        bytes calldata _cctpMessage,
+        bytes calldata _cctpSignature,
+        bytes calldata _scrollMessage
+    ) external {
+        require(status[_nonce] == CCTPMessageStatus.None, "message relayed");
+        // call messenger to set `status[_nonce]` to `CCTPMessageStatus.Pending`.
+        (bool _success, ) = messenger.call(_scrollMessage);
+        require(_success, "call messenger failed");
+
+        claimUSDC(_nonce, _cctpMessage, _cctpSignature);
+    }
+
+    /// @inheritdoc IL1ERC20Gateway
+    /// @dev The function will not mint the USDC, users need to call `claimUSDC` after this function is done.
+    function finalizeWithdrawERC20(
+        address _l1Token,
+        address _l2Token,
+        address _from,
+        address _to,
+        uint256 _amount,
+        bytes memory _data
+    ) external payable override onlyCallByCounterpart {
+        require(msg.value == 0, "nonzero msg.value");
+        require(_l1Token == l1USDC, "l1 token not USDC");
+        require(_l2Token == l2USDC, "l2 token not USDC");
+
+        uint256 _nonce;
+        (_nonce, _data) = abi.decode(_data, (uint256, bytes));
+        require(status[_nonce] == CCTPMessageStatus.None, "message relayed");
+        status[_nonce] = CCTPMessageStatus.Pending;
+
+        emit FinalizeWithdrawERC20(_l1Token, _l2Token, _from, _to, _amount, _data);
+    }
+
+    /*******************************
+     * Public Restricted Functions *
+     *******************************/
+
+    /// @notice Update the CCTP contract addresses.
+    /// @param _messenger The address of TokenMessenger in local domain.
+    /// @param _transmitter The address of MessageTransmitter in local domain.
+    function updateCCTPContracts(address _messenger, address _transmitter) external onlyOwner {
+        cctpMessenger = _messenger;
+        cctpTransmitter = _transmitter;
+    }
+
+    /**********************
+     * Internal Functions *
+     **********************/
+
+    /// @inheritdoc L1ERC20Gateway
+    function _beforeFinalizeWithdrawERC20(
+        address,
+        address,
+        address,
+        address,
+        uint256,
+        bytes calldata
+    ) internal virtual override {}
+
+    /// @inheritdoc L1ERC20Gateway
+    function _beforeDropMessage(
+        address,
+        address,
+        uint256
+    ) internal virtual override {
+        require(msg.value == 0, "nonzero msg.value");
+    }
+
+    /// @inheritdoc L1ERC20Gateway
+    function _deposit(
+        address _token,
+        address _to,
+        uint256 _amount,
+        bytes memory _data,
+        uint256 _gasLimit
+    ) internal virtual override nonReentrant {
+        require(_amount > 0, "deposit zero amount");
+        require(_token == l1USDC, "only USDC is allowed");
+
+        // 1. Extract real sender if this call is from L1GatewayRouter.
+        address _from;
+        (_from, _amount, _data) = _transferERC20In(_token, _amount, _data);
+
+        // 2. Burn token through CCTP TokenMessenger
+        uint256 _nonce = ITokenMessenger(cctpMessenger).depositForBurnWithCaller(
+            _amount,
+            destinationDomain,
+            bytes32(uint256(uint160(_to))),
+            address(this),
+            bytes32(uint256(uint160(counterpart)))
+        );
+
+        // 3. Generate message passed to L2USDCGatewayCCTP.
+        bytes memory _message = abi.encodeCall(
+            IL2ERC20Gateway.finalizeDepositERC20,
+            (_token, l2USDC, _from, _to, _amount, abi.encode(_nonce, _data))
+        );
+
+        // 4. Send message to L1ScrollMessenger.
+        IL1ScrollMessenger(messenger).sendMessage{value: msg.value}(counterpart, 0, _message, _gasLimit);
+
+        emit DepositERC20(_token, l2USDC, _from, _to, _amount, _data);
+    }
+}

contracts/src/L1/rollup/IScrollChain.sol

@@ -28,6 +28,9 @@ interface IScrollChain {
      * Public View Functions *
      *************************/
 
+    /// @notice The latest finalized batch index.
+    function lastFinalizedBatchIndex() external view returns (uint256);
+
     /// @notice Return the batch hash of a committed batch.
     /// @param batchIndex The index of the batch.
     function committedBatches(uint256 batchIndex) external view returns (bytes32);

contracts/src/L1/rollup/MultipleVersionRollupVerifier.sol

@@ -4,6 +4,7 @@ pragma solidity =0.8.16;
 
 import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
 
+import {IScrollChain} from "./IScrollChain.sol";
 import {IRollupVerifier} from "../../libraries/verifier/IRollupVerifier.sol";
 import {IZkEvmVerifier} from "../../libraries/verifier/IZkEvmVerifier.sol";
 
@@ -38,6 +39,9 @@ contract MultipleVersionRollupVerifier is IRollupVerifier, Ownable {
     /// @notice The lastest used zkevm verifier.
     Verifier public latestVerifier;
 
+    /// @notice The address of ScrollChain contract.
+    address public scrollChain;
+
     /***************
      * Constructor *
      ***************/
@@ -48,6 +52,12 @@ contract MultipleVersionRollupVerifier is IRollupVerifier, Ownable {
         latestVerifier.verifier = _verifier;
     }
 
+    function initialize(address _scrollChain) external onlyOwner {
+        require(scrollChain == address(0), "initialized");
+
+        scrollChain = _scrollChain;
+    }
+
     /*************************
      * Public View Functions *
      *************************/
@@ -101,6 +111,8 @@ contract MultipleVersionRollupVerifier is IRollupVerifier, Ownable {
     /// @param _startBatchIndex The start batch index when the verifier will be used.
     /// @param _verifier The address of new verifier.
     function updateVerifier(uint64 _startBatchIndex, address _verifier) external onlyOwner {
+        require(_startBatchIndex > IScrollChain(scrollChain).lastFinalizedBatchIndex(), "start batch index finalized");
+
         Verifier memory _latestVerifier = latestVerifier;
         require(_startBatchIndex >= _latestVerifier.startBatchIndex, "start batch index too small");
         require(_verifier != address(0), "zero verifier address");

contracts/src/L1/rollup/ScrollChain.sol

@@ -36,10 +36,10 @@ contract ScrollChain is OwnableUpgradeable, PausableUpgradeable, IScrollChain {
     /// @param newVerifier The address of new rollup verifier.
     event UpdateVerifier(address indexed oldVerifier, address indexed newVerifier);
 
-    /// @notice Emitted when the value of `maxNumL2TxInChunk` is updated.
-    /// @param oldMaxNumL2TxInChunk The old value of `maxNumL2TxInChunk`.
-    /// @param newMaxNumL2TxInChunk The new value of `maxNumL2TxInChunk`.
-    event UpdateMaxNumL2TxInChunk(uint256 oldMaxNumL2TxInChunk, uint256 newMaxNumL2TxInChunk);
+    /// @notice Emitted when the value of `maxNumTxInChunk` is updated.
+    /// @param oldMaxNumTxInChunk The old value of `maxNumTxInChunk`.
+    /// @param newMaxNumTxInChunk The new value of `maxNumTxInChunk`.
+    event UpdateMaxNumTxInChunk(uint256 oldMaxNumTxInChunk, uint256 newMaxNumTxInChunk);
 
     /*************
      * Constants *
@@ -53,7 +53,7 @@ contract ScrollChain is OwnableUpgradeable, PausableUpgradeable, IScrollChain {
      *************/
 
     /// @notice The maximum number of transactions allowed in each chunk.
-    uint256 public maxNumL2TxInChunk;
+    uint256 public maxNumTxInChunk;
 
     /// @notice The address of L1MessageQueue.
     address public messageQueue;
@@ -67,8 +67,8 @@ contract ScrollChain is OwnableUpgradeable, PausableUpgradeable, IScrollChain {
     /// @notice Whether an account is a prover.
     mapping(address => bool) public isProver;
 
-    /// @notice The latest finalized batch index.
-    uint256 public lastFinalizedBatchIndex;
+    /// @inheritdoc IScrollChain
+    uint256 public override lastFinalizedBatchIndex;
 
     /// @inheritdoc IScrollChain
     mapping(uint256 => bytes32) public override committedBatches;
@@ -107,16 +107,16 @@ contract ScrollChain is OwnableUpgradeable, PausableUpgradeable, IScrollChain {
     function initialize(
         address _messageQueue,
         address _verifier,
-        uint256 _maxNumL2TxInChunk
+        uint256 _maxNumTxInChunk
     ) public initializer {
         OwnableUpgradeable.__Ownable_init();
 
         messageQueue = _messageQueue;
         verifier = _verifier;
-        maxNumL2TxInChunk = _maxNumL2TxInChunk;
+        maxNumTxInChunk = _maxNumTxInChunk;
 
         emit UpdateVerifier(address(0), _verifier);
-        emit UpdateMaxNumL2TxInChunk(0, _maxNumL2TxInChunk);
+        emit UpdateMaxNumTxInChunk(0, _maxNumTxInChunk);
     }
 
     /*************************
@@ -272,9 +272,10 @@ contract ScrollChain is OwnableUpgradeable, PausableUpgradeable, IScrollChain {
         require(_batchIndex > lastFinalizedBatchIndex, "can only revert unfinalized batch");
 
         while (_count > 0) {
+            committedBatches[_batchIndex] = bytes32(0);
+
             emit RevertBatch(_batchIndex, _batchHash);
 
-            committedBatches[_batchIndex] = bytes32(0);
             unchecked {
                 _batchIndex += 1;
                 _count -= 1;
@@ -397,13 +398,13 @@ contract ScrollChain is OwnableUpgradeable, PausableUpgradeable, IScrollChain {
         emit UpdateVerifier(_oldVerifier, _newVerifier);
     }
 
-    /// @notice Update the value of `maxNumL2TxInChunk`.
-    /// @param _maxNumL2TxInChunk The new value of `maxNumL2TxInChunk`.
-    function updateMaxNumL2TxInChunk(uint256 _maxNumL2TxInChunk) external onlyOwner {
-        uint256 _oldMaxNumL2TxInChunk = maxNumL2TxInChunk;
-        maxNumL2TxInChunk = _maxNumL2TxInChunk;
+    /// @notice Update the value of `maxNumTxInChunk`.
+    /// @param _maxNumTxInChunk The new value of `maxNumTxInChunk`.
+    function updateMaxNumTxInChunk(uint256 _maxNumTxInChunk) external onlyOwner {
+        uint256 _oldMaxNumTxInChunk = maxNumTxInChunk;
+        maxNumTxInChunk = _maxNumTxInChunk;
 
-        emit UpdateMaxNumL2TxInChunk(_oldMaxNumL2TxInChunk, _maxNumL2TxInChunk);
+        emit UpdateMaxNumTxInChunk(_oldMaxNumTxInChunk, _maxNumTxInChunk);
     }
 
     /// @notice Pause the contract
@@ -461,19 +462,26 @@ contract ScrollChain is OwnableUpgradeable, PausableUpgradeable, IScrollChain {
 
         uint256 _numBlocks = ChunkCodec.validateChunkLength(chunkPtr, _chunk.length);
 
-        // concatenate block contexts
-        uint256 _totalTransactionsInChunk;
-        for (uint256 i = 0; i < _numBlocks; i++) {
-            dataPtr = ChunkCodec.copyBlockContext(chunkPtr, dataPtr, i);
-            uint256 _numTransactionsInBlock = ChunkCodec.numTransactions(blockPtr);
-            unchecked {
-                _totalTransactionsInChunk += _numTransactionsInBlock;
-                blockPtr += ChunkCodec.BLOCK_CONTEXT_LENGTH;
+        // concatenate block contexts, use scope to avoid stack too deep
+        {
+            uint256 _totalTransactionsInChunk;
+            for (uint256 i = 0; i < _numBlocks; i++) {
+                dataPtr = ChunkCodec.copyBlockContext(chunkPtr, dataPtr, i);
+                uint256 _numTransactionsInBlock = ChunkCodec.numTransactions(blockPtr);
+                unchecked {
+                    _totalTransactionsInChunk += _numTransactionsInBlock;
+                    blockPtr += ChunkCodec.BLOCK_CONTEXT_LENGTH;
+                }
+            }
+            assembly {
+                mstore(0x40, add(dataPtr, mul(_totalTransactionsInChunk, 0x20))) // reserve memory for tx hashes
             }
         }
 
+        // It is used to compute the actual number of transactions in chunk.
+        uint256 txHashStartDataPtr;
         assembly {
-            mstore(0x40, add(dataPtr, mul(_totalTransactionsInChunk, 0x20))) // reserve memory for tx hashes
+            txHashStartDataPtr := dataPtr
             blockPtr := add(chunkPtr, 1) // reset block ptr
         }
 
@@ -512,11 +520,8 @@ contract ScrollChain is OwnableUpgradeable, PausableUpgradeable, IScrollChain {
             }
         }
 
-        // check the number of L2 transactions in the chunk
-        require(
-            _totalTransactionsInChunk - _totalNumL1MessagesInChunk <= maxNumL2TxInChunk,
-            "too many L2 txs in one chunk"
-        );
+        // check the actual number of transactions in the chunk
+        require((dataPtr - txHashStartDataPtr) / 32 <= maxNumTxInChunk, "too many txs in one chunk");
 
         // check chunk has correct length
         require(l2TxPtr - chunkPtr == _chunk.length, "incomplete l2 transaction data");
@@ -549,9 +554,10 @@ contract ScrollChain is OwnableUpgradeable, PausableUpgradeable, IScrollChain {
 
         unchecked {
             uint256 _bitmap;
+            uint256 rem;
             for (uint256 i = 0; i < _numL1Messages; i++) {
                 uint256 quo = _totalL1MessagesPoppedInBatch >> 8;
-                uint256 rem = _totalL1MessagesPoppedInBatch & 0xff;
+                rem = _totalL1MessagesPoppedInBatch & 0xff;
 
                 // load bitmap every 256 bits
                 if (i == 0 || rem == 0) {
@@ -571,6 +577,10 @@ contract ScrollChain is OwnableUpgradeable, PausableUpgradeable, IScrollChain {
                 _totalL1MessagesPoppedInBatch += 1;
                 _totalL1MessagesPoppedOverall += 1;
             }
+
+            // check last L1 message is not skipped, _totalL1MessagesPoppedInBatch must > 0
+            rem = (_totalL1MessagesPoppedInBatch - 1) & 0xff;
+            require(((_bitmap >> rem) & 1) == 0, "cannot skip last L1 message");
         }
 
         return _ptr;

contracts/src/L2/L2ScrollMessenger.sol

@@ -40,12 +40,6 @@ contract L2ScrollMessenger is ScrollMessengerBase, IL2ScrollMessenger {
     /// @notice Mapping from L1 message hash to a boolean value indicating if the message has been successfully executed.
     mapping(bytes32 => bool) public isL1MessageExecuted;
 
-    /// @notice Mapping from L1 message hash to the number of failure times.
-    mapping(bytes32 => uint256) public l1MessageFailedTimes;
-
-    /// @notice The maximum number of times each L1 message can fail on L2.
-    uint256 public maxFailedExecutionTimes;
-
     /***************
      * Constructor *
      ***************/
@@ -58,8 +52,6 @@ contract L2ScrollMessenger is ScrollMessengerBase, IL2ScrollMessenger {
 
     function initialize(address _counterpart) external initializer {
         ScrollMessengerBase.__ScrollMessengerBase_init(_counterpart, address(0));
-
-        maxFailedExecutionTimes = 3;
     }
 
     /*****************************
@@ -105,22 +97,6 @@ contract L2ScrollMessenger is ScrollMessengerBase, IL2ScrollMessenger {
         _executeMessage(_from, _to, _value, _message, _xDomainCalldataHash);
     }
 
-    /************************
-     * Restricted Functions *
-     ************************/
-
-    /// @notice Update max failed execution times.
-    /// @dev This function can only called by contract owner.
-    /// @param _newMaxFailedExecutionTimes The new max failed execution times.
-    function updateMaxFailedExecutionTimes(uint256 _newMaxFailedExecutionTimes) external onlyOwner {
-        require(_newMaxFailedExecutionTimes > 0, "maxFailedExecutionTimes cannot be zero");
-
-        uint256 _oldMaxFailedExecutionTimes = maxFailedExecutionTimes;
-        maxFailedExecutionTimes = _newMaxFailedExecutionTimes;
-
-        emit UpdateMaxFailedExecutionTimes(_oldMaxFailedExecutionTimes, _newMaxFailedExecutionTimes);
-    }
-
     /**********************
      * Internal Functions *
      **********************/
@@ -137,6 +113,7 @@ contract L2ScrollMessenger is ScrollMessengerBase, IL2ScrollMessenger {
         uint256 _gasLimit
     ) internal nonReentrant {
         require(msg.value == _value, "msg.value mismatch");
+        _addUsedAmount(_value);
 
         uint256 _nonce = L2MessageQueue(messageQueue).nextMessageIndex();
         bytes32 _xDomainCalldataHash = keccak256(_encodeXDomainCalldata(msg.sender, _to, _value, _nonce, _message));
@@ -165,7 +142,7 @@ contract L2ScrollMessenger is ScrollMessengerBase, IL2ScrollMessenger {
     ) internal {
         // @note check more `_to` address to avoid attack in the future when we add more gateways.
         require(_to != messageQueue, "Forbid to call message queue");
-        require(_to != address(this), "Forbid to call self");
+        _validateTargetAddress(_to);
 
         // @note This usually will never happen, just in case.
         require(_from != xDomainMessageSender, "Invalid message sender");
@@ -180,11 +157,6 @@ contract L2ScrollMessenger is ScrollMessengerBase, IL2ScrollMessenger {
             isL1MessageExecuted[_xDomainCalldataHash] = true;
             emit RelayedMessage(_xDomainCalldataHash);
         } else {
-            unchecked {
-                uint256 _failedTimes = l1MessageFailedTimes[_xDomainCalldataHash] + 1;
-                require(_failedTimes <= maxFailedExecutionTimes, "Exceed maximum failure times");
-                l1MessageFailedTimes[_xDomainCalldataHash] = _failedTimes;
-            }
             emit FailedRelayedMessage(_xDomainCalldataHash);
         }
     }

contracts/src/L2/gateways/L2CustomERC20Gateway.sol

@@ -126,6 +126,9 @@ contract L2CustomERC20Gateway is L2ERC20Gateway {
             (_from, _data) = abi.decode(_data, (address, bytes));
         }
 
+        // rate limit
+        _addUsedAmount(_token, _amount);
+
         // 2. Burn token.
         IScrollERC20Upgradeable(_token).burn(_from, _amount);
 

contracts/src/L2/gateways/L2ERC20Gateway.sol

@@ -6,8 +6,6 @@ import {IL2ERC20Gateway} from "./IL2ERC20Gateway.sol";
 
 import {ScrollGatewayBase} from "../../libraries/gateway/ScrollGatewayBase.sol";
 
-// solhint-disable no-empty-blocks
-
 abstract contract L2ERC20Gateway is ScrollGatewayBase, IL2ERC20Gateway {
     /*************
      * Variables *

contracts/src/L2/gateways/L2ETHGateway.sol

@@ -98,6 +98,8 @@ contract L2ETHGateway is ScrollGatewayBase, IL2ETHGateway {
             (_from, _data) = abi.decode(_data, (address, bytes));
         }
 
+        // @note no rate limit here, since ETH is limited in messenger
+
         bytes memory _message = abi.encodeCall(IL1ETHGateway.finalizeWithdrawETH, (_from, _to, _amount, _data));
         IL2ScrollMessenger(messenger).sendMessage{value: msg.value}(counterpart, _amount, _message, _gasLimit);
 

contracts/src/L2/gateways/L2StandardERC20Gateway.sol

@@ -140,6 +140,9 @@ contract L2StandardERC20Gateway is L2ERC20Gateway {
         address _l1Token = tokenMapping[_token];
         require(_l1Token != address(0), "no corresponding l1 token");
 
+        // rate limit
+        _addUsedAmount(_token, _amount);
+
         // 2. Burn token.
         IScrollERC20Upgradeable(_token).burn(_from, _amount);
 

contracts/src/L2/gateways/L2WETHGateway.sol

@@ -116,6 +116,9 @@ contract L2WETHGateway is L2ERC20Gateway {
             (_from, _data) = abi.decode(_data, (address, bytes));
         }
 
+        // rate limit
+        _addUsedAmount(_token, _amount);
+
         // 2. Transfer token into this contract.
         IERC20Upgradeable(_token).safeTransferFrom(_from, address(this), _amount);
         IWETH(_token).withdraw(_amount);

contracts/src/L2/gateways/usdc/L2USDCGateway.sol

@@ -2,10 +2,12 @@
 
 pragma solidity =0.8.16;
 
+import {OwnableUpgradeable} from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
 import {IERC20Upgradeable} from "@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol";
 import {SafeERC20Upgradeable} from "@openzeppelin/contracts-upgradeable/token/ERC20/utils/SafeERC20Upgradeable.sol";
 
 import {IFiatToken} from "../../../interfaces/IFiatToken.sol";
+import {IUSDCDestinationBridge} from "../../../interfaces/IUSDCDestinationBridge.sol";
 import {IL1ERC20Gateway} from "../../../L1/gateways/IL1ERC20Gateway.sol";
 import {IL2ScrollMessenger} from "../../IL2ScrollMessenger.sol";
 import {IL2ERC20Gateway} from "../IL2ERC20Gateway.sol";
@@ -16,7 +18,7 @@ import {L2ERC20Gateway} from "../L2ERC20Gateway.sol";
 /// @title L2USDCGateway
 /// @notice The `L2USDCGateway` contract is used to withdraw `USDC` token on layer 2 and
 /// finalize deposit `USDC` from layer 1.
-contract L2USDCGateway is L2ERC20Gateway {
+contract L2USDCGateway is L2ERC20Gateway, IUSDCDestinationBridge {
     using SafeERC20Upgradeable for IERC20Upgradeable;
 
     /*************
@@ -33,8 +35,15 @@ contract L2USDCGateway is L2ERC20Gateway {
      * Variables *
      *************/
 
+    /// @notice The address of caller from Circle.
+    address public circleCaller;
+
+    /// @notice The flag indicates whether USDC deposit is paused.
+    /// @dev This is not necessary to be set `true` since we will set `L1USDCGateway.depositPaused` first.
+    ///      This is kept just in case and will be set after all pending messages are relayed.
     bool public depositPaused;
 
+    /// @notice The flag indicates whether USDC withdrawal is paused.
     bool public withdrawPaused;
 
     /***************
@@ -91,7 +100,8 @@ contract L2USDCGateway is L2ERC20Gateway {
 
         require(IFiatToken(_l2Token).mint(_to, _amount), "mint USDC failed");
 
-        _doCallback(_to, _data);
+        // disable call for USDC
+        // _doCallback(_to, _data);
 
         emit FinalizeDepositERC20(_l1Token, _l2Token, _from, _to, _amount, _data);
     }
@@ -100,6 +110,19 @@ contract L2USDCGateway is L2ERC20Gateway {
      * Public Restricted Functions *
      *******************************/
 
+    /// @inheritdoc IUSDCDestinationBridge
+    function transferUSDCRoles(address _owner) external {
+        require(msg.sender == circleCaller, "only circle caller");
+
+        OwnableUpgradeable(l2USDC).transferOwnership(_owner);
+    }
+
+    /// @notice Update the Circle EOA address.
+    /// @param _caller The address to update.
+    function updateCircleCaller(address _caller) external onlyOwner {
+        circleCaller = _caller;
+    }
+
     /// @notice Change the deposit pause status of this contract.
     /// @param _paused The new status, `true` means paused and `false` means not paused.
     function pauseDeposit(bool _paused) external onlyOwner {
@@ -128,15 +151,16 @@ contract L2USDCGateway is L2ERC20Gateway {
         require(_token == l2USDC, "only USDC is allowed");
         require(!withdrawPaused, "withdraw paused");
 
-        // 1. Extract real sender if this call is from L1GatewayRouter.
+        // 1. Extract real sender if this call is from L2GatewayRouter.
         address _from = msg.sender;
         if (router == msg.sender) {
             (_from, _data) = abi.decode(_data, (address, bytes));
         }
+        require(_data.length == 0, "call is not allowed");
 
         // 2. Transfer token into this contract.
         IERC20Upgradeable(_token).safeTransferFrom(_from, address(this), _amount);
-        require(IFiatToken(_token).burn(_amount), "burn USDC failed");
+        IFiatToken(_token).burn(_amount);
 
         // 3. Generate message passed to L1USDCGateway.
         address _l1USDC = l1USDC;

contracts/src/L2/gateways/usdc/draft-L2USDCGatewayCCTP.sol

@@ -0,0 +1,156 @@
+// SPDX-License-Identifier: MIT
+
+pragma solidity =0.8.16;
+
+import {OwnableUpgradeable} from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
+import {IERC20Upgradeable} from "@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol";
+import {SafeERC20Upgradeable} from "@openzeppelin/contracts-upgradeable/token/ERC20/utils/SafeERC20Upgradeable.sol";
+
+import {ITokenMessenger} from "../../../interfaces/ITokenMessenger.sol";
+import {IL1ERC20Gateway} from "../../../L1/gateways/IL1ERC20Gateway.sol";
+import {IL2ScrollMessenger} from "../../IL2ScrollMessenger.sol";
+import {IL2ERC20Gateway} from "../IL2ERC20Gateway.sol";
+
+import {CCTPGatewayBase} from "../../../libraries/gateway/CCTPGatewayBase.sol";
+import {ScrollGatewayBase} from "../../../libraries/gateway/ScrollGatewayBase.sol";
+import {L2ERC20Gateway} from "../L2ERC20Gateway.sol";
+
+/// @title L2USDCGatewayCCTP
+/// @notice The `L2USDCGatewayCCTP` contract is used to withdraw `USDC` token in layer 2 and
+/// finalize deposit `USDC` from layer 1.
+contract L2USDCGatewayCCTP is CCTPGatewayBase, L2ERC20Gateway {
+    using SafeERC20Upgradeable for IERC20Upgradeable;
+
+    /***************
+     * Constructor *
+     ***************/
+
+    constructor(
+        address _l1USDC,
+        address _l2USDC,
+        uint32 _destinationDomain
+    ) CCTPGatewayBase(_l1USDC, _l2USDC, _destinationDomain) {
+        _disableInitializers();
+    }
+
+    /// @notice Initialize the storage of L2USDCGatewayCCTP.
+    /// @param _counterpart The address of L1USDCGatewayCCTP in L1.
+    /// @param _router The address of L2GatewayRouter.
+    /// @param _messenger The address of L2ScrollMessenger.
+    /// @param _cctpMessenger The address of TokenMessenger in local domain.
+    /// @param _cctpTransmitter The address of MessageTransmitter in local domain.
+    function initialize(
+        address _counterpart,
+        address _router,
+        address _messenger,
+        address _cctpMessenger,
+        address _cctpTransmitter
+    ) external initializer {
+        require(_router != address(0), "zero router address");
+        ScrollGatewayBase._initialize(_counterpart, _router, _messenger);
+        CCTPGatewayBase._initialize(_cctpMessenger, _cctpTransmitter);
+    }
+
+    /*************************
+     * Public View Functions *
+     *************************/
+
+    /// @inheritdoc IL2ERC20Gateway
+    function getL1ERC20Address(address) external view override returns (address) {
+        return l1USDC;
+    }
+
+    /// @inheritdoc IL2ERC20Gateway
+    function getL2ERC20Address(address) public view override returns (address) {
+        return l2USDC;
+    }
+
+    /*****************************
+     * Public Mutating Functions *
+     *****************************/
+
+    /// @inheritdoc IL2ERC20Gateway
+    /// @dev The function will not mint the USDC, users need to call `claimUSDC` after this function is done.
+    function finalizeDepositERC20(
+        address _l1Token,
+        address _l2Token,
+        address _from,
+        address _to,
+        uint256 _amount,
+        bytes memory _data
+    ) external payable override onlyCallByCounterpart {
+        require(msg.value == 0, "nonzero msg.value");
+        require(_l1Token == l1USDC, "l1 token not USDC");
+        require(_l2Token == l2USDC, "l2 token not USDC");
+
+        uint256 _nonce;
+        (_nonce, _data) = abi.decode(_data, (uint256, bytes));
+        require(status[_nonce] == CCTPMessageStatus.None, "message relayed");
+        status[_nonce] = CCTPMessageStatus.Pending;
+
+        emit FinalizeDepositERC20(_l1Token, _l2Token, _from, _to, _amount, _data);
+    }
+
+    /*******************************
+     * Public Restricted Functions *
+     *******************************/
+
+    /// @notice Update the CCTP contract addresses.
+    /// @param _messenger The address of TokenMessenger in local domain.
+    /// @param _transmitter The address of MessageTransmitter in local domain.
+    function updateCCTPContracts(address _messenger, address _transmitter) external onlyOwner {
+        cctpMessenger = _messenger;
+        cctpTransmitter = _transmitter;
+    }
+
+    /**********************
+     * Internal Functions *
+     **********************/
+
+    /// @inheritdoc L2ERC20Gateway
+    function _withdraw(
+        address _token,
+        address _to,
+        uint256 _amount,
+        bytes memory _data,
+        uint256 _gasLimit
+    ) internal virtual override {
+        require(_amount > 0, "withdraw zero amount");
+        require(_token == l2USDC, "only USDC is allowed");
+
+        // 1. Extract real sender if this call is from L1GatewayRouter.
+        address _from = msg.sender;
+        if (router == msg.sender) {
+            (_from, _data) = abi.decode(_data, (address, bytes));
+        }
+
+        // 2. Transfer token into this contract.
+        IERC20Upgradeable(_token).safeTransferFrom(_from, address(this), _amount);
+
+        // 3. Burn token through CCTP TokenMessenger
+        uint256 _nonce = ITokenMessenger(cctpMessenger).depositForBurnWithCaller(
+            _amount,
+            destinationDomain,
+            bytes32(uint256(uint160(_to))),
+            address(this),
+            bytes32(uint256(uint160(counterpart)))
+        );
+
+        // 4. Generate message passed to L1USDCGateway.
+        address _l1USDC = l1USDC;
+        bytes memory _message = abi.encodeWithSelector(
+            IL1ERC20Gateway.finalizeWithdrawERC20.selector,
+            _l1USDC,
+            _token,
+            _from,
+            _to,
+            _amount,
+            abi.encode(_nonce, _data)
+        );
+
+        // 4. Send message to L1ScrollMessenger.
+        IL2ScrollMessenger(messenger).sendMessage{value: msg.value}(counterpart, 0, _message, _gasLimit);
+
+        emit WithdrawERC20(_l1USDC, _token, _from, _to, _amount, _data);
+    }
+}

contracts/src/README.md

@@ -1,6 +1,6 @@
 A library for interacting with Scroll contracts.
 
-This library includes contracts and interfaces needed to interact with the Scroll Smart Contracts deployed on both Layer 1 and Layer 2. This includes deposting and withdrawing ETH, ERC20 tokens and NFTs or sending arbitrary messages. 
+This library includes contracts and interfaces needed to interact with the Scroll Smart Contracts deployed on both Layer 1 and Layer 2. This includes deposting and withdrawing ETH, ERC20 tokens and NFTs or sending arbitrary messages.
 
 # Overview
 
@@ -21,10 +21,11 @@ pragma solidity 0.8.20;
 import "@scroll-tech/contracts/L1/gateways/IL1ETHGateway.sol";
 
 contract MyContract {
-    function bridgeETH(address scrollBridge, uint gasLimit) public payable {
-      IL1ETHGateway(scrollBridge).depositETH(msg.sender, msg.value, gasLimit);
-    }
+  function bridgeETH(address scrollBridge, uint256 gasLimit) public payable {
+    IL1ETHGateway(scrollBridge).depositETH(msg.sender, msg.value, gasLimit);
+  }
 }
+
 ```
 
 Visit the Bridge Documentation for API reference, architecture overview and guides with code examples.

contracts/src/gas-swap/GasSwap.sol

@@ -6,7 +6,6 @@ import {ERC2771Context} from "@openzeppelin/contracts/metatx/ERC2771Context.sol"
 import {ReentrancyGuard} from "@openzeppelin/contracts/security/ReentrancyGuard.sol";
 import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
 import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
-import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
 import {IERC20Permit} from "@openzeppelin/contracts/token/ERC20/extensions/draft-IERC20Permit.sol";
 
 import {OwnableBase} from "../libraries/common/OwnableBase.sol";
@@ -15,6 +14,7 @@ import {OwnableBase} from "../libraries/common/OwnableBase.sol";
 
 contract GasSwap is ERC2771Context, ReentrancyGuard, OwnableBase {
     using SafeERC20 for IERC20;
+    using SafeERC20 for IERC20Permit;
 
     /**********
      * Events *
@@ -94,7 +94,7 @@ contract GasSwap is ERC2771Context, ReentrancyGuard, OwnableBase {
         address _sender = _msgSender();
 
         // do permit
-        IERC20Permit(_permit.token).permit(
+        IERC20Permit(_permit.token).safePermit(
             _sender,
             address(this),
             _permit.value,

contracts/src/interfaces/IFiatToken.sol

@@ -18,5 +18,5 @@ interface IFiatToken {
      * amount is less than or equal to the minter's account balance
      * @param _amount uint256 the amount of tokens to be burned
      */
-    function burn(uint256 _amount) external returns (bool);
+    function burn(uint256 _amount) external;
 }

contracts/src/interfaces/IMessageTransmitter.sol

@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: MIT
+
+pragma solidity ^0.8.16;
+
+interface IMessageTransmitter {
+    function usedNonces(bytes32 _sourceAndNonce) external view returns (uint256);
+
+    /**
+     * @notice Receives an incoming message, validating the header and passing
+     * the body to application-specific handler.
+     * @param message The message raw bytes
+     * @param signature The message signature
+     * @return success bool, true if successful
+     */
+    function receiveMessage(bytes calldata message, bytes calldata signature) external returns (bool success);
+}

contracts/src/interfaces/ITokenMessenger.sol

@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: MIT
+
+pragma solidity ^0.8.16;
+
+interface ITokenMessenger {
+    /**
+     * @notice Deposits and burns tokens from sender to be minted on destination domain. The mint
+     * on the destination domain must be called by `destinationCaller`.
+     * WARNING: if the `destinationCaller` does not represent a valid address as bytes32, then it will not be possible
+     * to broadcast the message on the destination domain. This is an advanced feature, and the standard
+     * depositForBurn() should be preferred for use cases where a specific destination caller is not required.
+     * Emits a `DepositForBurn` event.
+     * @dev reverts if:
+     * - given destinationCaller is zero address
+     * - given burnToken is not supported
+     * - given destinationDomain has no TokenMessenger registered
+     * - transferFrom() reverts. For example, if sender's burnToken balance or approved allowance
+     * to this contract is less than `amount`.
+     * - burn() reverts. For example, if `amount` is 0.
+     * - MessageTransmitter returns false or reverts.
+     * @param amount amount of tokens to burn
+     * @param destinationDomain destination domain
+     * @param mintRecipient address of mint recipient on destination domain
+     * @param burnToken address of contract to burn deposited tokens, on local domain
+     * @param destinationCaller caller on the destination domain, as bytes32
+     * @return nonce unique nonce reserved by message
+     */
+    function depositForBurnWithCaller(
+        uint256 amount,
+        uint32 destinationDomain,
+        bytes32 mintRecipient,
+        address burnToken,
+        bytes32 destinationCaller
+    ) external returns (uint64 nonce);
+
+    /**
+     * @notice Replace a BurnMessage to change the mint recipient and/or
+     * destination caller. Allows the sender of a previous BurnMessage
+     * (created by depositForBurn or depositForBurnWithCaller)
+     * to send a new BurnMessage to replace the original.
+     * The new BurnMessage will reuse the amount and burn token of the original,
+     * without requiring a new deposit.
+     * @dev The new message will reuse the original message's nonce. For a
+     * given nonce, all replacement message(s) and the original message are
+     * valid to broadcast on the destination domain, until the first message
+     * at the nonce confirms, at which point all others are invalidated.
+     * Note: The msg.sender of the replaced message must be the same as the
+     * msg.sender of the original message.
+     * @param originalMessage original message bytes (to replace)
+     * @param originalAttestation original attestation bytes
+     * @param newDestinationCaller the new destination caller, which may be the
+     * same as the original destination caller, a new destination caller, or an empty
+     * destination caller (bytes32(0), indicating that any destination caller is valid.)
+     * @param newMintRecipient the new mint recipient, which may be the same as the
+     * original mint recipient, or different.
+     */
+    function replaceDepositForBurn(
+        bytes calldata originalMessage,
+        bytes calldata originalAttestation,
+        bytes32 newDestinationCaller,
+        bytes32 newMintRecipient
+    ) external;
+}