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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-8617) backport pure Java CRC32 calculator changes to branch-1
Date Tue, 25 Sep 2012 17:56:08 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-8617?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arun C Murthy updated HADOOP-8617:
----------------------------------

    Affects Version/s:     (was: 1.2.0)
        Fix Version/s:     (was: 1.2.0)
                       1.1.0

I merged this to branch-1.1 too.
                
> backport pure Java CRC32 calculator changes to branch-1
> -------------------------------------------------------
>
>                 Key: HADOOP-8617
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8617
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: performance
>            Reporter: Brandon Li
>            Assignee: Brandon Li
>             Fix For: 1.1.0
>
>         Attachments: HADOOP-8617.patch
>
>
> Multiple efforts have been made gradually to improve the CRC performance in Hadoop. This
JIRA is to back port these changes to branch-1, which include HADOOP-6166, HADOOP-6148, HADOOP-7333.
> The related HDFS and MAPREDUCE patches are uploaded to their original JIRAs HDFS-496
and MAPREDUCE-782.

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