[jira] [Updated] (SOLR-17077) When rejoining shard leader election, we try to leave the election twice

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-17077?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated SOLR-17077:
----------------------------------
    Labels: pull-request-available  (was: )

> 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
>          Components: SolrCloud
>    Affects Versions: 8.11.2, 9.4
>            Reporter: Pierre Salagnac
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: main (10.0)
>
>          Time Spent: 1h 40m
>  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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