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From "Zoltan Haindrich (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-20560) Set hive.llap.memory.oversubscription.max.executors.per.query to be 1/3rd of num of llap daemons
Date Fri, 14 Sep 2018 11:53:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-20560?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16614689#comment-16614689
] 

Zoltan Haindrich commented on HIVE-20560:
-----------------------------------------

+1 pending tests

> Set hive.llap.memory.oversubscription.max.executors.per.query to be 1/3rd of num of llap
daemons
> ------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-20560
>                 URL: https://issues.apache.org/jira/browse/HIVE-20560
>             Project: Hive
>          Issue Type: Improvement
>          Components: Hive
>            Reporter: Miklos Gergely
>            Assignee: Miklos Gergely
>            Priority: Major
>             Fix For: 4.0.0
>
>         Attachments: HIVE-20560.01.patch
>
>
> Unless hive.llap.memory.oversubscription.max.executors.per.query is not specified by
the user,
> it should be calculated like this:
> {noformat}
> hive.llap.memory.oversubscription.max.executors.per.query = min(max(1, int(hive.llap.daemon.num.executors
/ 3)),8)
> {noformat}
> In container mode it remains 3 (unless specified otherwise).



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