[jira] [Created] (SOLR-16783) Race condition deleting clusterstate.json can prevent Solr from starting

["Tomas Eduardo Fernandez Lobbe (Jira)" <ji...@apache.org>]

Tomas Eduardo Fernandez Lobbe created SOLR-16783:
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             Summary: 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


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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