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Request missing blobs while processing pending queue (#13015)

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* Request missing blobs while processing pending queue

* Fix build

* Lower complexity

* Fix conflict

* Clean up per James's comment

---------

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
This commit is contained in:
terencechain
2023-10-11 15:07:11 -07:00
committed by GitHub
parent a536612c39
commit 99843688cd
1 changed files with 17 additions and 2 deletions
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19
beacon-chain/sync/pending_blocks_queue.go
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@@ -8,6 +8,7 @@ import (
"sync"
"time"
"github.com/libp2p/go-libp2p/core"
"github.com/pkg/errors"
"github.com/prysmaticlabs/prysm/v4/async"
"github.com/prysmaticlabs/prysm/v4/beacon-chain/blockchain"
@@ -184,6 +185,7 @@ func (s *Service) hasPeer() bool {
}
// processAndBroadcastBlock validates, processes, and broadcasts a block.
// part of the function is to request missing blobs from peers if the block contains kzg commitments.
func (s *Service) processAndBroadcastBlock(ctx context.Context, b interfaces.ReadOnlySignedBeaconBlock, blkRoot [32]byte) error {
if err := s.validateBeaconBlock(ctx, b, blkRoot); err != nil {
if !errors.Is(ErrOptimisticParent, err) {
@@ -192,6 +194,14 @@ func (s *Service) processAndBroadcastBlock(ctx context.Context, b interfaces.Rea
}
}
peers := s.getBestPeers()
peerCount := len(peers)
if peerCount > 0 {
if err := s.requestPendingBlobs(ctx, b.Block(), blkRoot, peers[rand.NewGenerator().Int()%peerCount]); err != nil {
return err
}
}
if err := s.cfg.chain.ReceiveBlock(ctx, b, blkRoot); err != nil {
return err
}
@@ -219,6 +229,12 @@ func (s *Service) handleBlockProcessingError(ctx context.Context, err error, b i
log.WithError(err).WithField("slot", b.Block().Slot()).Debug("Could not process block")
}
// getBestPeers returns the list of best peers based on finalized checkpoint epoch.
func (s *Service) getBestPeers() []core.PeerID {
_, bestPeers := s.cfg.p2p.Peers().BestFinalized(maxPeerRequest, s.cfg.chain.FinalizedCheckpt().Epoch)
return bestPeers
}
func (s *Service) checkIfBlockIsBad(
ctx context.Context,
span *trace.Span,
@@ -265,8 +281,7 @@ func (s *Service) sendBatchRootRequest(ctx context.Context, roots [][32]byte, ra
if len(roots) == 0 {
return nil
}
cp := s.cfg.chain.FinalizedCheckpt()
_, bestPeers := s.cfg.p2p.Peers().BestFinalized(maxPeerRequest, cp.Epoch)
bestPeers := s.getBestPeers()
if len(bestPeers) == 0 {
return nil
}