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From "Szilard Nemeth (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4599) Set OOM control for memory cgroups
Date Thu, 17 May 2018 16:31:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-4599?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16479324#comment-16479324
] 

Szilard Nemeth commented on YARN-4599:
--------------------------------------

Thanks [~miklos.szegedi@cloudera.com] for your answer and the updated patch!

About your response to 3: fair enough then, the multiplication can be way faster in this sense.

Checked your latest patch (015), LGTM (non-binding).

> Set OOM control for memory cgroups
> ----------------------------------
>
>                 Key: YARN-4599
>                 URL: https://issues.apache.org/jira/browse/YARN-4599
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager
>    Affects Versions: 2.9.0
>            Reporter: Karthik Kambatla
>            Assignee: Miklos Szegedi
>            Priority: Major
>              Labels: oct16-medium
>         Attachments: Elastic Memory Control in YARN.pdf, YARN-4599.000.patch, YARN-4599.001.patch,
YARN-4599.002.patch, YARN-4599.003.patch, YARN-4599.004.patch, YARN-4599.005.patch, YARN-4599.006.patch,
YARN-4599.007.patch, YARN-4599.008.patch, YARN-4599.009.patch, YARN-4599.010.patch, YARN-4599.011.patch,
YARN-4599.012.patch, YARN-4599.013.patch, YARN-4599.014.patch, YARN-4599.015.patch, YARN-4599.sandflee.patch,
yarn-4599-not-so-useful.patch
>
>
> YARN-1856 adds memory cgroups enforcing support. We should also explicitly set OOM control
so that containers are not killed as soon as they go over their usage. Today, one could set
the swappiness to control this, but clusters with swap turned off exist.



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