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https://issues.apache.org/jira/browse/AMBARI-18835?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Myroslav Papirkovskyi updated AMBARI-18835:
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Status: Patch Available (was: Open)
> Heartbeat lost for all hosts after server start
> -----------------------------------------------
>
> Key: AMBARI-18835
> URL: https://issues.apache.org/jira/browse/AMBARI-18835
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Affects Versions: 2.0.0
> Reporter: Myroslav Papirkovskyi
> Assignee: Myroslav Papirkovskyi
> Fix For: 2.4.2
>
> Attachments: AMBARI-18835.patch
>
>
> Occurred once after upgrade. REST endpoints for agents became inaccessible
> and agents were unable to send heartbeats.
> Research has shown that all jetty worker threads were in infinite loop while
> reading from HashMap which was not threadsafe.
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