Boyang Chen created KAFKA-10284: ----------------------------------- Summary: Group membership update due to static member rejoin should be persisted Key: KAFKA-10284 URL: https://issues.apache.org/jira/browse/KAFKA-10284 Project: Kafka Issue Type: Bug Components: consumer Affects Versions: 2.5.0, 2.4.0, 2.3.0, 2.6.0 Reporter: Boyang Chen Assignee: Boyang Chen Fix For: 2.6.1
For known static members rejoin, we would update its corresponding member.id without triggering a new rebalance. This serves the purpose for avoiding unnecessary rebalance for static membership, as well as fencing purpose if some still uses the old member.id. The bug is that we don't actually persist the membership update, so if no upcoming rebalance gets triggered, this new member.id information will get lost during group coordinator immigration, thus bringing up the zombie member identity. -- This message was sent by Atlassian Jira (v8.3.4#803005)