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https://issues.apache.org/jira/browse/FLINK-30474?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias Pohl resolved FLINK-30474.
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Fix Version/s: 1.17.0
1.15.4
1.16.2
Resolution: Fixed
> DefaultMultipleComponentLeaderElectionService triggers HA backend change even
> if it's not the leader
> ----------------------------------------------------------------------------------------------------
>
> Key: FLINK-30474
> URL: https://issues.apache.org/jira/browse/FLINK-30474
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Coordination
> Affects Versions: 1.16.0, 1.17.0, 1.15.3
> Reporter: Matthias Pohl
> Assignee: Matthias Pohl
> Priority: Critical
> Labels: pull-request-available
> Fix For: 1.17.0, 1.15.4, 1.16.2
>
>
> {{DefaultMultipleComponentLeaderElectionService}} calls
> {{LeaderElectionEventHandler#onLeaderInformationChange}} in any case even
> though the contracts of that method states that it should be only called by
> the leader to update the HA backend information (see
> [JavaDoc|https://github.com/apache/flink/blob/5a2f220e31c50306a60aae8281f0ab4073fb85e1/flink-runtime/src/main/java/org/apache/flink/runtime/leaderelection/LeaderElectionEventHandler.java#L46-L50]).
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