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https://issues.apache.org/jira/browse/YARN-2424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14102684#comment-14102684
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Ravi Prakash commented on YARN-2424:
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Thanks Tucu! In YARN-1253, Vinod wrote:
bq. Even if the jobs run as a single 'yarnuser', security isn't still there -
like Arun said, any body can bomb HDFS directories of other users, any user can
kill any other user's tasks/containers, any one can delete any one else's local
dirs, log-dir and so on
Is that not true?
> 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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