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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-3993) Graceful handling of codec errors during decompression
Date Sat, 07 Jul 2012 00:33:34 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3993?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Karthik Kambatla updated MAPREDUCE-3993:
----------------------------------------

    Target Version/s: 2.0.0-alpha, 1.1.0  (was: 1.1.0, 2.0.0-alpha)
             Summary: Graceful handling of codec errors during decompression  (was: reduce
fetch catch clause should catch RTEs as well)
    
> Graceful handling of codec errors during decompression
> ------------------------------------------------------
>
>                 Key: MAPREDUCE-3993
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3993
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv1, mrv2
>    Affects Versions: 0.23.1, 1.0.2
>            Reporter: Todd Lipcon
>            Assignee: Karthik Kambatla
>         Attachments: MR-3993_branch1.patch, MR-3993_trunk.patch
>
>
> When using a compression codec for intermediate compression, some cases of corrupt data
can cause the codec to throw exceptions other than IOException (eg java.lang.InternalError).
This will currently cause the whole reduce task to fail, instead of simply treating it like
another case of a failed fetch.

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