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Posted to yarn-issues@hadoop.apache.org by "Nathan Roberts (JIRA)" <ji...@apache.org> on 2014/11/05 16:39:34 UTC

[jira] [Created] (YARN-2809) Implement workaround for linux kernel panic when removing cgroup

Nathan Roberts created YARN-2809:
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             Summary: Implement workaround for linux kernel panic when removing cgroup
                 Key: YARN-2809
                 URL: https://issues.apache.org/jira/browse/YARN-2809
             Project: Hadoop YARN
          Issue Type: Bug
          Components: nodemanager
    Affects Versions: 2.6.0
         Environment:  RHEL 6.4
            Reporter: Nathan Roberts
            Assignee: Nathan Roberts


Some older versions of linux have a bug that can cause a kernel panic when the LCE attempts to remove a cgroup. It is a race condition so it's a bit rare but on a few thousand node cluster it can result in a couple of panics per day.

This is the commit that likely (haven't verified) fixes the problem in linux: https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?h=linux-2.6.39.y&id=068c5cc5ac7414a8e9eb7856b4bf3cc4d4744267

Details will be added in comments.




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