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https://issues.apache.org/jira/browse/SOLR-6091?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14004036#comment-14004036
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Shalin Shekhar Mangar commented on SOLR-6091:
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bq. maybe we can go further and include the id in the /overseer/leader file
(e.g. 91790253334528928-<host>:8983_solr-n_0000000013) so that the Overseer
would only quit if its ID actually matched it completely.
+1
I'll work up a patch and try it out.
> Race condition in prioritizeOverseerNodes can trigger extra QUIT operations
> ---------------------------------------------------------------------------
>
> Key: SOLR-6091
> URL: https://issues.apache.org/jira/browse/SOLR-6091
> Project: Solr
> Issue Type: Bug
> Components: SolrCloud
> Affects Versions: 4.7, 4.8
> Reporter: Shalin Shekhar Mangar
> Assignee: Shalin Shekhar Mangar
> Fix For: 4.9, 5.0
>
> Attachments: SOLR-6091.patch
>
>
> When using the overseer roles feature, there is a possibility of more than
> one thread executing the prioritizeOverseerNodes method and extra QUIT
> commands being inserted into the overseer queue.
> At a minimum, the prioritizeOverseerNodes should be synchronized to avoid a
> race condition.
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