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Date: Wed, 17 Oct 2012 13:22:07 +0000 (UTC)
From: "Hudson (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
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Subject: [jira] [Commented] (HADOOP-8901) GZip and Snappy support may not
 work without unversioned libraries
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    [ https://issues.apache.org/jira/browse/HADOOP-8901?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13477855#comment-13477855 ] 

Hudson commented on HADOOP-8901:
--------------------------------

Integrated in Hadoop-Mapreduce-trunk #1228 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1228/])
    HADOOP-8901. GZip and Snappy support may not work without unversioned libraries. Contributed by Colin Patrick McCabe. (Revision 1398416)

     Result = FAILURE
todd : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1398416
Files : 
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/CMakeLists.txt

                
> GZip and Snappy support may not work without unversioned libraries
> ------------------------------------------------------------------
>
>                 Key: HADOOP-8901
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8901
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: native
>    Affects Versions: 2.0.3-alpha
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>            Priority: Minor
>             Fix For: 3.0.0, 2.0.3-alpha
>
>         Attachments: HADOOP-8901.001.patch, HADOOP-8901.002.patch, HADOOP-8901.003.patch
>
>
> Currently, we use {{dlopen}} to open {{libz.so}} and {{libsnappy.so}}, to get Gzip and Snappy support, respectively.
> However, this is not correct; we should be dlopening {{libsnappy.so.1}} instead.  The versionless form of the shared library is not commonly installed except by development packages.  Also, we may run into subtle compatibility problems if a new version of libsnappy comes out.
> Thanks to Brandon Vargo for reporting this bug.

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