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Date: Tue, 8 May 2012 12:41:52 +0000 (UTC)
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Subject: [jira] [Commented] (HADOOP-8327) distcpv2 and distcpv1 jars should
 not coexist
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    [ https://issues.apache.org/jira/browse/HADOOP-8327?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13270412#comment-13270412 ] 

Hudson commented on HADOOP-8327:
--------------------------------

Integrated in Hadoop-Hdfs-0.23-Build #251 (See [https://builds.apache.org/job/Hadoop-Hdfs-0.23-Build/251/])
    svn merge -c 1335075 FIXES: HADOOP-8327. distcpv2 and distcpv1 jars should not coexist (Dave Thompson via bobby) (Revision 1335079)

     Result = SUCCESS
bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1335079
Files : 
* /hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/CHANGES.txt
* /hadoop/common/branches/branch-0.23/hadoop-tools/hadoop-extras/src/main/java/org/apache/hadoop/tools/DistCp.java
* /hadoop/common/branches/branch-0.23/hadoop-tools/hadoop-extras/src/main/java/org/apache/hadoop/tools/DistCpV1.java
* /hadoop/common/branches/branch-0.23/hadoop-tools/hadoop-extras/src/main/java/org/apache/hadoop/tools/Logalyzer.java
* /hadoop/common/branches/branch-0.23/hadoop-tools/hadoop-extras/src/test/java/org/apache/hadoop/tools/TestCopyFiles.java

                
> distcpv2 and distcpv1 jars should not coexist
> ---------------------------------------------
>
>                 Key: HADOOP-8327
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8327
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 0.23.2
>            Reporter: Dave Thompson
>            Assignee: Dave Thompson
>             Fix For: 0.23.3, 2.0.0, 3.0.0
>
>         Attachments: HADOOP-8327-branch-0.23.2.patch, HADOOP-8327.patch, HADOOP-8327.patch
>
>
> Distcp v2 (hadoop-tools/hadoop-distcp/...)    and Distcp v1 (hadoop-tools/hadoop-extras/...) are currently both built, and the resulting hadoop-distcp-x.jar and hadoop-extras-x.jar end up in the same class path directory.   This causes some undeterministic problems, where v1 is launched when v2 is intended, or even v2 is launched, but may later fail on various nodes because of mismatch with v1.
> According to
> http://docs.oracle.com/javase/6/docs/technotes/tools/windows/classpath.html ("Understanding class path wildcards")
> "The order in which the JAR files in a directory are enumerated in the expanded class path is not specified and may vary from platform to platform and even from moment to moment on the same machine."
> Suggest distcpv1 be deprecated at this point, possibly by discontinuing build of distcpv1.

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