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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-15541) Hive OOM when ATSHook enabled and ATS goes down
Date Wed, 11 Jan 2017 20:31:16 GMT

    [ https://issues.apache.org/jira/browse/HIVE-15541?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15819078#comment-15819078
] 

Sergey Shelukhin commented on HIVE-15541:
-----------------------------------------

nit: whitespace in  case PRE_EXEC_HOOK: is weird (statements are on different levels than
other cases).
Why 64 and not 128 or 10240? :)
What I had in mind was a single thread drawing items out of the queue, w/o runnables. But
this also work. +1, above can be fixed on commit

> 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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