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Date: Tue, 9 Oct 2012 07:16:03 +0000 (UTC)
From: "Hadoop QA (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=13472191#comment-13472191 ] 

Hadoop QA commented on HADOOP-8901:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12548366/HADOOP-8901.003.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:red}-1 tests included{color}.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of javac compiler warnings.

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-common-project/hadoop-common.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/1587//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/1587//console

This message is automatically generated.
                
> 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
>         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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