kafka runtime_error ai_generated true

org.apache.kafka.common.errors.InvalidCommitOffsetSyncException: Offset commit failed due to synchronization conflict with the group coordinator

ID: kafka/invalid-commit-offset-sync

Also available as: JSON · Markdown · 中文
80%Fix Rate
85%Confidence
1Evidence
2024-01-15First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
kafka 3.4.0 active — — —
kafka 3.5.0 active — — —
kafka 3.6.0 active — — —

Root Cause

The consumer attempted to commit offsets while the group coordinator was in the middle of a rebalance or epoch change, causing a synchronization mismatch.

generic

中文

消费者在组协调器正在进行再平衡或纪元变更时尝试提交偏移量，导致同步不匹配。

Official Documentation

https://kafka.apache.org/documentation/#upgrade_340

Workarounds

  1. 85% success Set 'enable.auto.commit=false' and manually commit offsets only after ensuring the consumer is in a stable state (e.g., after a successful poll that does not trigger rebalance). Add a retry loop with exponential backoff for commit calls. 
    Set 'enable.auto.commit=false' and manually commit offsets only after ensuring the consumer is in a stable state (e.g., after a successful poll that does not trigger rebalance). Add a retry loop with exponential backoff for commit calls.
  2. 95% success Upgrade the Kafka client library to version 3.7.0 or later, which includes a fix for coordinator epoch synchronization in offset commits. 
    Upgrade the Kafka client library to version 3.7.0 or later, which includes a fix for coordinator epoch synchronization in offset commits.

中文步骤

  1. Set 'enable.auto.commit=false' and manually commit offsets only after ensuring the consumer is in a stable state (e.g., after a successful poll that does not trigger rebalance). Add a retry loop with exponential backoff for commit calls.
  2. Upgrade the Kafka client library to version 3.7.0 or later, which includes a fix for coordinator epoch synchronization in offset commits.

Dead Ends

Common approaches that don't work:

  1. 65% fail

    A restart triggers another rebalance, which may re-introduce the synchronization conflict, especially if the coordinator state is stale.

  2. 50% fail

    This does not prevent the epoch change that causes the conflict; it only delays rebalance detection, possibly masking the underlying issue.