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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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Pierre Salagnac updated SOLR-17077:
-----------------------------------
Description:
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."_
was:
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."_
> 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
> Time Spent: 10m
> 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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