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From "Sergey Shelukhin (JIRA)" <>
Subject [jira] [Updated] (HIVE-18078) WM getSession needs some retry logic
Date Fri, 08 Dec 2017 17:51:06 GMT


Sergey Shelukhin updated HIVE-18078:
    Attachment: HIVE-18078.01.patch


> WM getSession needs some retry logic
> ------------------------------------
>                 Key: HIVE-18078
>                 URL:
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>         Attachments: HIVE-18078.01.patch, HIVE-18078.01.patch, HIVE-18078.only.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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