Zamil Majdy 033f58c075 fix(backend): Make Redis event bus gracefully handle connection failures (#11817) ...

## Summary
Adds graceful error handling to AsyncRedisEventBus and RedisEventBus so
that connection failures log exceptions with full traceback while
remaining non-breaking. This allows DatabaseManager to operate without
Redis connectivity.

## Problem
DatabaseManager was failing with "Authentication required" when trying
to publish notifications via AsyncRedisNotificationEventBus. The service
has no Redis credentials configured, causing `increment_onboarding_runs`
to fail.

## Root Cause
When `increment_onboarding_runs` publishes a notification:
1. Calls `AsyncRedisNotificationEventBus().publish()`
2. Attempts to connect to Redis via `get_redis_async()`
3. Connection fails due to missing credentials
4. Exception propagates, failing the entire DB operation

Previous fix (#11775) made the cache module lazy, but didn't address the
notification bus which also requires Redis.

## Solution
Wrap Redis operations in try-except blocks:
- `publish_event`: Logs exception with traceback, continues without
publishing
- `listen_events`: Logs exception with traceback, returns empty
generator
- `wait_for_event`: Returns None on connection failure

Using `logger.exception()` instead of `logger.warning()` ensures full
stack traces are captured for debugging while keeping operations
non-breaking.

This allows services to operate without Redis when only using event bus
for non-critical notifications.

## Changes
- Modified `backend/data/event_bus.py`:
- Added graceful error handling to `RedisEventBus` and
`AsyncRedisEventBus`
- All Redis operations now catch exceptions and log with
`logger.exception()`
- Added `backend/data/event_bus_test.py`:
  - Tests verify graceful degradation when Redis is unavailable
  - Tests verify normal operation when Redis is available

## Test Plan
- [x] New tests verify graceful degradation when Redis unavailable
- [x] Existing notification tests still pass
- [x] DatabaseManager can increment onboarding runs without Redis

## Related Issues
Fixes https://significant-gravitas.sentry.io/issues/7205834440/
(AUTOGPT-SERVER-76D)

2026-01-21 15:51:26 +00:00

..

generate_block_docs.py

fix(backend): Make Redis event bus gracefully handle connection failures (#11817)

2026-01-21 15:51:26 +00:00

test_generate_block_docs.py

feat(docs): Add block documentation auto-generation system (#11707)

2026-01-19 07:03:19 +00:00