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From "Jason Dere (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-15541) Hive OOM when ATSHook enabled and ATS goes down
Date Thu, 19 Jan 2017 00:31:26 GMT

    [ https://issues.apache.org/jira/browse/HIVE-15541?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15829051#comment-15829051
] 

Jason Dere commented on HIVE-15541:
-----------------------------------

Per [~hagleitn], Creating the ATS event on the main query thread is expensive and should be
done on a separate thread.
Will try creating a separate thread pool for sending the event to ATS, so that the existing
executor does not get tied up in blocking calls.

> Hive OOM when ATSHook enabled and ATS goes down
> -----------------------------------------------
>
>                 Key: HIVE-15541
>                 URL: https://issues.apache.org/jira/browse/HIVE-15541
>             Project: Hive
>          Issue Type: Bug
>          Components: Hooks
>            Reporter: Jason Dere
>            Assignee: Jason Dere
>         Attachments: HIVE-15541.1.patch, HIVE-15541.2.patch, HIVE-15541.3.patch
>
>
> The ATS API used by the Hive ATSHook is a blocking call, if ATS goes down this can block
the ATSHook executor, while the hook continues to submit work to the executor with each query.
> Over time the buildup of queued items can cause OOM.



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