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From "Eric Badger (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-8259) Revisit liveliness checks for Docker containers
Date Mon, 11 Jun 2018 20:05:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-8259?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16508657#comment-16508657

Eric Badger commented on YARN-8259:

I would give a slight preference to proposal #1 because of performance, especially in the
live-restore case. There is a workaround even with hidepid in place, so I think the good outweighs
the bad. 

> Revisit liveliness checks for Docker containers
> -----------------------------------------------
>                 Key: YARN-8259
>                 URL: https://issues.apache.org/jira/browse/YARN-8259
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>    Affects Versions: 3.0.2, 3.2.0, 3.1.1
>            Reporter: Shane Kumpf
>            Assignee: Shane Kumpf
>            Priority: Blocker
>              Labels: Docker
>         Attachments: YARN-8259.001.patch
> As privileged containers may execute as a user that does not match the YARN run as user,
sending the null signal for liveliness checks could fail. We need to reconsider how liveliness
checks are handled in the Docker case.

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