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From "Varun Thacker (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SOLR-10983) Fix DOWNNODE -> queue-work explosion
Date Mon, 21 Aug 2017 09:01:00 GMT

     [ https://issues.apache.org/jira/browse/SOLR-10983?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Varun Thacker updated SOLR-10983:
---------------------------------
    Fix Version/s:     (was: 7.1)
                       (was: 6.7)
                   6.6.1

> 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, 6.6.1, master (8.0)
>
>         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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