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Posted to issues@hive.apache.org by "Lefty Leverenz (JIRA)" <ji...@apache.org> on 2017/02/22 08:18:44 UTC
[jira] [Comment Edited] (HIVE-15347) LLAP: Executor memory and Xmx
should have some headroom for other services
[ https://issues.apache.org/jira/browse/HIVE-15347?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15753816#comment-15753816 ]
Lefty Leverenz edited comment on HIVE-15347 at 2/22/17 8:18 AM:
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Doc note: This adds *hive.llap.daemon.headroom.memory.per.instance.mb* to HiveConf.java and changes the default of *hive.llap.daemon.memory.per.instance.mb* back to 4096 (after HIVE-15159 changed it to 3276, also in 2.2.0).
Only *hive.llap.daemon.headroom.memory.per.instance.mb* needs to be documented in the wiki.
* [Configuration Properties -- LLAP | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-LLAP]
Added a TODOC2.2 label.
Edit (22/Feb/17): HIVE-15959 removes *hive.llap.daemon.headroom.memory.per.instance.mb* in 2.2.0, so it doesn't need to be documented after all. Removing the TODOC2.2 label.
was (Author: lefty@hortonworks.com):
Doc note: This adds *hive.llap.daemon.headroom.memory.per.instance.mb* to HiveConf.java and changes the default of *hive.llap.daemon.memory.per.instance.mb* back to 4096 (after HIVE-15159 changed it to 3276, also in 2.2.0).
Only *hive.llap.daemon.headroom.memory.per.instance.mb* needs to be documented in the wiki.
* [Configuration Properties -- LLAP | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-LLAP]
Added a TODOC2.2 label.
> LLAP: Executor memory and Xmx should have some headroom for other services
> --------------------------------------------------------------------------
>
> Key: HIVE-15347
> URL: https://issues.apache.org/jira/browse/HIVE-15347
> Project: Hive
> Issue Type: Bug
> Components: llap
> Affects Versions: 2.2.0
> Reporter: Prasanth Jayachandran
> Assignee: Prasanth Jayachandran
> Priority: Critical
> Fix For: 2.2.0
>
> Attachments: HIVE-15347.1.patch
>
>
> If executor memory + cache memory is configured close or equal to Xmx, the task attempts that is causing OOM can take down the LLAP daemon. Provide some leeway for other services during memory crunch.
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