Sumit Mohanty created AMBARI-18943:
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Summary: If multiple HSI components are deployed then HSI start
should not restart llap
Key: AMBARI-18943
URL: https://issues.apache.org/jira/browse/AMBARI-18943
Project: Ambari
Issue Type: Bug
Components: stacks
Affects Versions: 2.5.0
Reporter: Sumit Mohanty
Assignee: Sumit Mohanty
Priority: Critical
Fix For: 2.5.0
When HSI component is started, it destroys the llap app and then starts it.
However, if multiple HSI instances are deployed then when an instance is
started (due to fail over of another instance) then it should be checked if
llap is running and if it is then it should not be restarted.
Multiple HSI instances are deployed only in an active-passive scenario to
enable fail over. As llap app is an YARN app, it automatically supports
failover. So not forcing a restart of llap is a requirement when HSI is
deployed in an active-passive mode.
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