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From "Daryn Sharp (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-4302) NM goes down if error encountered during log aggregation
Date Fri, 01 Jun 2012 16:59:23 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-4302?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Daryn Sharp updated MAPREDUCE-4302:
-----------------------------------

    Status: Patch Available  (was: Open)
    
> 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: 2.0.0-alpha, 0.23.0, trunk
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>            Priority: Critical
>         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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