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https://issues.apache.org/jira/browse/SOLR-8914?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15217464#comment-15217464
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Noble Paul commented on SOLR-8914:
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hoss, what I would like to know is what if it is not threadsafe? The live nodes
set is expected to change all the time. So, what if multiple threads update the
Set one after other?
> 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: SOLR-8914.patch, SOLR-8914.patch,
> 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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