[jira] [Commented] (KAFKA-16121) Partition reassignments in ZK migration dual write mode stalled until leader epoch incremented
[ https://issues.apache.org/jira/browse/KAFKA-16121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17815421#comment-17815421 ] Stanislav Kozlovski commented on KAFKA-16121: - Marked as closed in order to be able to build an RC > Partition reassignments in ZK migration dual write mode stalled until leader > epoch incremented > -- > > Key: KAFKA-16121 > URL: https://issues.apache.org/jira/browse/KAFKA-16121 > Project: Kafka > Issue Type: Bug >Reporter: David Mao >Assignee: David Mao >Priority: Major > Fix For: 3.7.0 > > > I noticed this in an integration test in > https://github.com/apache/kafka/pull/15184 > In ZK mode, partition leaders rely on the LeaderAndIsr request to be notified > of new replicas as part of a reassignment. In ZK mode, we ignore any > LeaderAndIsr request where the partition leader epoch is less than or equal > to the current partition leader epoch. > In KRaft mode, we do not bump the leader epoch when starting a new > reassignment, see: `triggerLeaderEpochBumpIfNeeded`. This means that the > leader will ignore the LISR request initiating the reassignment until a > leader epoch bump is triggered through another means, for instance preferred > leader election. -- This message was sent by Atlassian Jira (v8.20.10#820010)
[jira] [Commented] (KAFKA-16121) Partition reassignments in ZK migration dual write mode stalled until leader epoch incremented
[ https://issues.apache.org/jira/browse/KAFKA-16121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17807040#comment-17807040 ] Ismael Juma commented on KAFKA-16121: - It's a bit odd to mark this as a duplicate of KAFKA-16120 given that the descriptions are different. I understand that both issues were fixed by the same PR, but we should either update the description of KAFKA-16120 or mark this one as FIXED (instead of duplicate). > Partition reassignments in ZK migration dual write mode stalled until leader > epoch incremented > -- > > Key: KAFKA-16121 > URL: https://issues.apache.org/jira/browse/KAFKA-16121 > Project: Kafka > Issue Type: Bug >Reporter: David Mao >Assignee: David Mao >Priority: Major > Fix For: 3.7.0 > > > I noticed this in an integration test in > https://github.com/apache/kafka/pull/15184 > In ZK mode, partition leaders rely on the LeaderAndIsr request to be notified > of new replicas as part of a reassignment. In ZK mode, we ignore any > LeaderAndIsr request where the partition leader epoch is less than or equal > to the current partition leader epoch. > In KRaft mode, we do not bump the leader epoch when starting a new > reassignment, see: `triggerLeaderEpochBumpIfNeeded`. This means that the > leader will ignore the LISR request initiating the reassignment until a > leader epoch bump is triggered through another means, for instance preferred > leader election. -- This message was sent by Atlassian Jira (v8.20.10#820010)
