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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-129) Simplify classpath construction for mini YARN tests
Date Thu, 25 Oct 2012 03:58:13 GMT

    [ https://issues.apache.org/jira/browse/YARN-129?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13483874#comment-13483874
] 

Hadoop QA commented on YARN-129:
--------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12550482/YARN-129.patch
  against trunk revision .

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

    {color:green}+1 tests included{color}.  The patch appears to include 2 new or modified
test files.

    {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:red}-1 core tests{color}.  The patch failed these unit tests in hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-unmanaged-am-launcher:

                  org.apache.hadoop.mapred.TestClusterMRNotification

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

Test results: https://builds.apache.org/job/PreCommit-YARN-Build/124//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/124//console

This message is automatically generated.
                
> 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
>         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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