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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-7503) Recovery after ZK session expiration happens in a single thread for all cores in a node
Date Mon, 18 May 2015 21:28:01 GMT

    [ https://issues.apache.org/jira/browse/SOLR-7503?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14549262#comment-14549262
] 

ASF subversion and git services commented on SOLR-7503:
-------------------------------------------------------

Commit 1680106 from [~thelabdude] in branch 'dev/trunk'
[ https://svn.apache.org/r1680106 ]

SOLR-7503: move changes text to bug fixes section was in other changes

> Recovery after ZK session expiration happens in a single thread for all cores in a node
> ---------------------------------------------------------------------------------------
>
>                 Key: SOLR-7503
>                 URL: https://issues.apache.org/jira/browse/SOLR-7503
>             Project: Solr
>          Issue Type: Bug
>          Components: SolrCloud
>    Affects Versions: 5.1
>            Reporter: Shalin Shekhar Mangar
>            Assignee: Timothy Potter
>              Labels: impact-high
>             Fix For: Trunk, 5.2
>
>         Attachments: SOLR-7503.patch
>
>
> Currently cores are registered in parallel in an executor. However, when there's a ZK
expiration, the recovery, which also happens in the register call, happens in a single thread:
> https://github.com/apache/lucene-solr/blob/trunk/solr/core/src/java/org/apache/solr/cloud/ZkController.java#L300
> We should make these happen in parallel as well so that recovery after ZK expiration
doesn't take forever.
> Thanks to [~mewmewball] for catching this.



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