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From "Ajit Kumar (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-17776) HiveServer interactive stop should wait for 30 second before sending kill -9
Date Mon, 18 Jul 2016 21:16:20 GMT
Ajit Kumar created AMBARI-17776:
-----------------------------------

             Summary: HiveServer interactive stop should wait for 30 second before sending
kill -9
                 Key: AMBARI-17776
                 URL: https://issues.apache.org/jira/browse/AMBARI-17776
             Project: Ambari
          Issue Type: Bug
          Components: ambari-server
    Affects Versions: 2.4.0
            Reporter: Ajit Kumar
            Assignee: Ajit Kumar
             Fix For: 2.4.0


Currently when stopping Hive server interactive, the following steps seem to be taken.
1. Send kill to hive server interactive process
2. Wait for 5 seconds and send kill -9 if process in not killed.

If HS2 is not shutdown properly - long running sessions (AMs) started by it will not be killed.
In case of LLAP - these sessions will typically run for hours. Without the kill - LLAP cannot
be restarted, since the old sessions will exist in the LLAP queue, and due to the precise
capacity calculations - the queue will not have enough capacity to start new sessions.

Ideally it should wait for 30 second before sending kill -9




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