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From "Sean Zhong (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5976) native-task should not fail to build if snappy is missing
Date Thu, 24 Jul 2014 14:20:38 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5976?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14073229#comment-14073229
] 

Sean Zhong commented on MAPREDUCE-5976:
---------------------------------------

Thanks, Manu. Looks good, +1

Changes of the new patch:
1. use system provided snappy header files, remove builtin snappy header
2. Java side delegate the codec check to a native function, NativeRuntime.supportCompressionCodec(codecName
: String) 


> native-task should not fail to build if snappy is missing
> ---------------------------------------------------------
>
>                 Key: MAPREDUCE-5976
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5976
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: task
>            Reporter: Todd Lipcon
>            Assignee: Sean Zhong
>         Attachments: mapreduce-5976-v2.txt, mapreduce-5976.txt
>
>
> Other native parts of Hadoop will automatically disable snappy support if snappy is not
present and -Drequire.snappy is not passed. native-task should do the same. (right now, it
fails to build if snappy is missing)



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