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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 Mon, 18 Aug 2014 05:46:19 GMT

    [ https://issues.apache.org/jira/browse/YARN-2424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14100302#comment-14100302
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Alejandro Abdelnur commented on YARN-2424:
------------------------------------------

I think I did, if I'm reading correctly you are stating that is better for troubleshooting,
specially in multi-tenant scenarios: 

bq. It's also worth pointing out that one of the key benefits of running tasks as the user
who submitted them is that it makes troubleshooting much easier. When one hops on a node,
it is evident as to which user's tasks one is looking at it, even if those tasks aren't validated
as "that" user. This is especially important in heavy multi-tenant scenarios.


> 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
>              Labels: regression
>         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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