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From "Scott Blum (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-8914) ZkStateReader's refreshLiveNodes(Watcher) is not thread safe
Date Tue, 29 Mar 2016 22:32:25 GMT

    [ https://issues.apache.org/jira/browse/SOLR-8914?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15216979#comment-15216979
] 

Scott Blum commented on SOLR-8914:
----------------------------------

This is super troubling....

1290071 port 56361  Updated live nodes from ZooKeeper... (4) -> (5)
1290075 port 56361  Updated live nodes from ZooKeeper... (5) -> (1)
1290076 port 56361  Updated live nodes from ZooKeeper... (1) -> (3)

WTF?

> ZkStateReader's refreshLiveNodes(Watcher) is not thread safe
> ------------------------------------------------------------
>
>                 Key: SOLR-8914
>                 URL: https://issues.apache.org/jira/browse/SOLR-8914
>             Project: Solr
>          Issue Type: Bug
>            Reporter: Hoss Man
>         Attachments: jenkins.thetaphi.de_Lucene-Solr-6.x-Solaris_32.log.txt, live_node_mentions_port56361_with_threadIds.log.txt,
live_nodes_mentions.log.txt
>
>
> Jenkin's encountered a failure in TestTolerantUpdateProcessorCloud over the weekend....
> {noformat}
> http://jenkins.thetaphi.de/job/Lucene-Solr-6.x-Solaris/32/consoleText
> Checking out Revision c46d7686643e7503304cb35dfe546bce9c6684e7 (refs/remotes/origin/branch_6x)
> Using Java: 64bit/jdk1.8.0 -XX:+UseCompressedOops -XX:+UseG1GC
> {noformat}
> The failure happened during the static setup of the test, when a MiniSolrCloudCluster
& several clients are initialized -- before any code related to TolerantUpdateProcessor
is ever used.
> I can't reproduce this, or really make sense of what i'm (not) seeing here in the logs,
so i'm filing this jira with my analysis in the hopes that someone else can help make sense
of it.



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