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From "Alejandro Abdelnur (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2424) LCE should support non-cgroups, non-secure mode
Date Wed, 20 Aug 2014 17:36:27 GMT

    [ https://issues.apache.org/jira/browse/YARN-2424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14104179#comment-14104179
] 

Alejandro Abdelnur commented on YARN-2424:
------------------------------------------

I disagree on YARN-1253 being a breakage. 

Personally, I would never recommend using this in production. Given that, I'm OK with the
patch if:

* the NM logs print a WARN at startup stating the setting.
* the container stdout/stderr also prints a WARN to alert the user of the setting.



> LCE should support non-cgroups, non-secure mode
> -----------------------------------------------
>
>                 Key: YARN-2424
>                 URL: https://issues.apache.org/jira/browse/YARN-2424
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 2.3.0, 2.4.0, 2.5.0, 2.4.1
>            Reporter: Allen Wittenauer
>            Priority: Blocker
>         Attachments: YARN-2424.patch
>
>
> After YARN-1253, LCE no longer works for non-secure, non-cgroup scenarios.  This is a
fairly serious regression, as turning on LCE prior to turning on full-blown security is a
fairly standard procedure.



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