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From "Sergey Shelukhin (JIRA)" <>
Subject [jira] [Created] (HIVE-18078) WM getSession needs some retry logic
Date Thu, 16 Nov 2017 02:01:00 GMT
Sergey Shelukhin created HIVE-18078:

             Summary: WM getSession needs some retry logic
                 Key: HIVE-18078
             Project: Hive
          Issue Type: Sub-task
            Reporter: Sergey Shelukhin

When we get a bad session (e.g. no registry info because AM has gone catatonic), the failure
by the timeout future fails the getSession call.
The retry model in TezTask is that it would get a session (which in original model can be
completely unusable, but we still get the object), and then retry (reopen) if it's a lemon.
If the reopen fails, we fail.
getSession is not covered by this retry scheme, and should thus do its own retries (or the
retry logic needs to be changed)

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