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https://issues.apache.org/jira/browse/SOLR-10983?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Erick Erickson updated SOLR-10983:
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Fix Version/s: 6.7
> 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, 6.7, 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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