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https://issues.apache.org/jira/browse/HDDS-11742?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDDS-11742:
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Labels: pull-request-available (was: )
> SCM leadership metric set to null even if the LEADER is defined
> ---------------------------------------------------------------
>
> Key: HDDS-11742
> URL: https://issues.apache.org/jira/browse/HDDS-11742
> Project: Apache Ozone
> Issue Type: Bug
> Components: SCM
> Affects Versions: 2.0.0
> Reporter: Vyacheslav Tutrinov
> Assignee: Vyacheslav Tutrinov
> Priority: Major
> Labels: pull-request-available
>
> SCM leadership metric was introduced in HDDS-8363.
> On starting of the SCM server the Raft server instance initialized earlier
> than the SCM HTTP server initializer set the leader to null:
> {code:java}
> // At this point leader is not known
> scmHAMetricsUpdate(null);
> {code}
> Log entries of the SCM server instance at start-up time:
> {code}
> 2024-11-18 11:09:29,981
> [ae525b25-2774-4f91-9bbc-83884c1f472d@group-F219F5C50F0F-FollowerState] INFO
> server.RaftServer$Division:
> ae525b25-2774-4f91-9bbc-83884c1f472d@group-F219F5C50F0F: changes role from
> FOLLOWER to CANDIDATE at term 4 for changeToCandidate
> ...
> 2024-11-18 11:09:30,412
> [ae525b25-2774-4f91-9bbc-83884c1f472d@group-F219F5C50F0F-LeaderElection1]
> INFO server.RaftServer$Division:
> ae525b25-2774-4f91-9bbc-83884c1f472d@group-F219F5C50F0F: changes role from
> CANDIDATE to LEADER at term 5 for changeToLeader
> ...
> 2024-11-18 11:09:41,593 [main] INFO http.BaseHttpServer: HTTP server of scm
> listening at http://0.0.0.0:9876
> // At this point the leadership metric will be reset to null!
> {code}
>
> SCM HTTP server initializer shouldn't reset the metric to null if the latter
> was initialized already with the raft server initializer
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