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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-10983) Fix DOWNNODE -> queue-work explosion
Date Thu, 06 Jul 2017 00:04:00 GMT

    [ https://issues.apache.org/jira/browse/SOLR-10983?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16075664#comment-16075664
] 

ASF subversion and git services commented on SOLR-10983:
--------------------------------------------------------

Commit 51638c09bf4f5457650ab40c60b5f98512f9ca1d in lucene-solr's branch refs/heads/branch_7_0
from [~dragonsinth]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=51638c0 ]

SOLR-10983: Fix DOWNNODE -> queue-work explosion


> 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
>         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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