[ https://issues.apache.org/jira/browse/KAFKA-15441?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
David Arthur resolved KAFKA-15441. ---------------------------------- Resolution: Fixed > Broker sessions can time out during ZK migration > ------------------------------------------------ > > Key: KAFKA-15441 > URL: https://issues.apache.org/jira/browse/KAFKA-15441 > Project: Kafka > Issue Type: Bug > Affects Versions: 3.6.0 > Reporter: David Arthur > Assignee: David Arthur > Priority: Blocker > Fix For: 3.6.0 > > > When a ZK to KRaft migration takes more than a few seconds to complete, the > sessions between the ZK brokers and the KRaft controller will expire. This > appears to be due to the heartbeat events being blocked in the purgatory on > the controller. > The side effect of this expiration is that after the metadata is migrated, > the KRaft controller will immediately fence all of the brokers and remove > them from ISRs. This leads to a mass leadership change that can cause large > latency spikes on the brokers. -- This message was sent by Atlassian Jira (v8.20.10#820010)