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Date: Fri, 1 Jun 2012 22:03:23 +0000 (UTC)
From: "Robert Joseph Evans (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
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Subject: [jira] [Updated] (MAPREDUCE-4302) NM goes down if error encountered
 during log aggregation
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     [ https://issues.apache.org/jira/browse/MAPREDUCE-4302?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Joseph Evans updated MAPREDUCE-4302:
-------------------------------------------

       Resolution: Fixed
    Fix Version/s: 3.0.0
                   2.0.1-alpha
                   0.23.3
           Status: Resolved  (was: Patch Available)

Thanks Daryn,

I put this into trunk, branch-2, and branch-0.23.
                
> NM goes down if error encountered during log aggregation
> --------------------------------------------------------
>
>                 Key: MAPREDUCE-4302
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4302
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 0.23.0, 2.0.0-alpha, trunk
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>            Priority: Critical
>             Fix For: 0.23.3, 2.0.1-alpha, 3.0.0
>
>         Attachments: MAPREDUCE-4302.patch
>
>
> When a container launch request is sent to the NM, if _any_ exception occurs during the init of log aggregation then the NM goes down.  The problem can be induced by situations including, but certainly not limited to: transient rpc connection issues, missing tokens, expired tokens, permissions, full/quota exceeded dfs, etc.  The problem may occur with and without security enabled.
> The ramification is an entire cluster can be rather easily brought down either maliciously, accidentally, or via a submission bug.

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