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https://issues.apache.org/jira/browse/SOLR-16783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17719431#comment-17719431
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ASF subversion and git services commented on SOLR-16783:
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Commit 29275fb32e9e124de2dfd2312823cb8e202f3aeb in solr's branch
refs/heads/branch_9_2 from Tomas Eduardo Fernandez Lobbe
[ https://gitbox.apache.org/repos/asf?p=solr.git;h=29275fb32e9 ]
SOLR-16783: Ignore NoNodeException when deleting clusterstate.json on startup
(#1624)
> Race condition deleting clusterstate.json can prevent Solr from starting
> ------------------------------------------------------------------------
>
> Key: SOLR-16783
> URL: https://issues.apache.org/jira/browse/SOLR-16783
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Tomas Eduardo Fernandez Lobbe
> Priority: Minor
> Time Spent: 20m
> Remaining Estimate: 0h
>
> ZkController attempts to delete the deprecated {{clusterstate.json}} file
> from ZooKeeper if empty on startup. If multiple instances attempt to delete
> it at the same time one of them will succeed and the others will fail with
> `NoNodeException`, which bubbles up and causes the instant to fail startup,
> requiring another restart
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