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https://issues.apache.org/jira/browse/SOLR-17077?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Smiley resolved SOLR-17077.
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Fix Version/s: main (10.0)
Resolution: Fixed
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> When rejoining shard leader election, we try to leave the election twice
> ------------------------------------------------------------------------
>
> Key: SOLR-17077
> URL: https://issues.apache.org/jira/browse/SOLR-17077
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: SolrCloud
> Affects Versions: 8.11.2, 9.4
> Reporter: Pierre Salagnac
> Priority: Minor
> Fix For: main (10.0)
>
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> When rejoining leader election, we tries to delete the leader election twice
> in Zookeeper.
> This has no impact on the outcome of the leader election and this does not
> cause other failure. This is visible in logs (see bellow).
>
> *Scénario details*
> Method {{ZkController.rejoinShardLeaderElection()}} leaves the election by
> removing the sequential election node and the leader registration node. This
> is done directly from there by invoking {{{}prevContext.cancelElection(){}}}.
> Then {{LeaderElector.retryElection()}} does that again
> (this.context.cancelElection()) but the second time around always fails as
> the Zookeeper nodes were already removed by the first attempt.
> Following log line is logged each time we invoke {{REJOINELECTION}} of a
> shard.
> _"No version found for ephemeral leader parent node, won't remove previous
> leader registration."_
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