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Date: Mon, 19 Nov 2012 15:27:02 +0000 (UTC)
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Subject: [jira] [Commented] (YARN-129) Simplify classpath construction for
 mini YARN tests
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    [ https://issues.apache.org/jira/browse/YARN-129?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13500312#comment-13500312 ] 

Hudson commented on YARN-129:
-----------------------------

Integrated in Hadoop-trunk-Commit #3044 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/3044/])
    YARN-129. Simplify classpath construction for mini YARN tests. (Revision 1411235)

     Result = SUCCESS
tomwhite : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1411235
Files : 
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/pom.xml
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/util/MRApps.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapreduce/security/ssl/TestEncryptedShuffle.java
* /hadoop/common/trunk/hadoop-project/pom.xml
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell/pom.xml
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell/src/main/java/org/apache/hadoop/yarn/applications/distributedshell/Client.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-unmanaged-am-launcher/pom.xml
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-unmanaged-am-launcher/src/test/java/org/apache/hadoop/yarn/applications/unmanagedamlauncher/TestUnmanagedAMLauncher.java

                
> Simplify classpath construction for mini YARN tests
> ---------------------------------------------------
>
>                 Key: YARN-129
>                 URL: https://issues.apache.org/jira/browse/YARN-129
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: client
>            Reporter: Tom White
>            Assignee: Tom White
>             Fix For: 2.0.3-alpha
>
>         Attachments: YARN-129.patch, YARN-129.patch, YARN-129.patch
>
>
> The test classpath includes a special file called 'mrapp-generated-classpath' (or similar in distributed shell) that is constructed at build time, and whose contents are a classpath with all the dependencies needed to run the tests. When the classpath for a container (e.g. the AM) is constructed the contents of mrapp-generated-classpath is read and added to the classpath, and the file itself is then added to the classpath so that later when the AM constructs a classpath for a task container it can propagate the test classpath correctly.
> This mechanism can be drastically simplified by propagating the system classpath of the current JVM (read from the java.class.path property) to a launched JVM, but only if running in the context of the mini YARN cluster. Any tests that use the mini YARN cluster will automatically work with this change. Although any that explicitly deal with mrapp-generated-classpath can be simplified.

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