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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-18078) WM getSession needs some retry logic
Date Tue, 12 Dec 2017 19:27:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-18078?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sergey Shelukhin updated HIVE-18078:
------------------------------------
    Attachment: HIVE-18078.03.patch

I hate ptest

> WM getSession needs some retry logic
> ------------------------------------
>
>                 Key: HIVE-18078
>                 URL: https://issues.apache.org/jira/browse/HIVE-18078
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>         Attachments: HIVE-18078.01.patch, HIVE-18078.01.patch, HIVE-18078.02.patch, HIVE-18078.03.patch,
HIVE-18078.only.patch, HIVE-18078.patch
>
>
> 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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