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https://issues.apache.org/jira/browse/SOLR-10983?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16117560#comment-16117560
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ASF subversion and git services commented on SOLR-10983:
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Commit d704796a785aa0d8e455661e519bb2f0c67b7311 in lucene-solr's branch
refs/heads/branch_6x from Erick
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=d704796 ]
SOLR-10983: Fix DOWNNODE -> queue-work explosion, backporting to 6x as per the
comments in the JIRA
> Fix DOWNNODE -> queue-work explosion
> ------------------------------------
>
> Key: SOLR-10983
> URL: https://issues.apache.org/jira/browse/SOLR-10983
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: SolrCloud
> Reporter: Scott Blum
> Assignee: Scott Blum
> Fix For: 7.0, master (8.0), 7.1
>
> Attachments: SOLR-10983.patch
>
>
> Every DOWNNODE command enqueues N copies of itself into queue-work, where N
> is number of collections affected by the DOWNNODE.
> This rarely matters in practice, because queue-work gets immediately dumped--
> however, if anything throws an exception (such as ZK bad version), we don't
> clear queue-work. Then the next time through the loop we run the expensive
> DOWNNODE command potentially hundreds of times.
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