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From "Hadoop QA (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3505) yarn APPLICATION_CLASSPATH needs to be overridable
Date Mon, 12 Dec 2011 11:52:32 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13167458#comment-13167458

Hadoop QA commented on MAPREDUCE-3505:

-1 overall.  Here are the results of testing the latest attachment 
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  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.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit

    +1 core tests.  The patch passed unit tests in .

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1420//testReport/
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1420//console

This message is automatically generated.
> yarn APPLICATION_CLASSPATH needs to be overridable
> --------------------------------------------------
>                 Key: MAPREDUCE-3505
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3505
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.0, 0.23.1
>            Reporter: Bruno Mahé
>            Assignee: Ahmed Radwan
>              Labels: bigtop
>         Attachments: MAPREDUCE-3505.patch
> Right now MRApps sets the classpath to just being mrapp-generated-classpath, its content
and a hardcoded list of directories.
> If I understand correctly mrapp-generated-classpath is only there for testing and may
change or disappear at any time
> The list of hardcoded directories is defined in hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/ApplicationConstants.java
at line 92.
> For convenience, here is its current content:
> {noformat}
>   /**
>    * Classpath for typical applications.
>    */
>   public static final String[] APPLICATION_CLASSPATH =
>       new String[] {
>         "$HADOOP_CONF_DIR",
>         "$HADOOP_COMMON_HOME/share/hadoop/common/*",
>         "$HADOOP_COMMON_HOME/share/hadoop/common/lib/*",
>         "$HADOOP_HDFS_HOME/share/hadoop/hdfs/*",
>         "$HADOOP_HDFS_HOME/share/hadoop/hdfs/lib/*",
>         "$YARN_HOME/modules/*",
>         "$YARN_HOME/lib/*"
>       };
> {noformat}
> Not all deployment scenarii fit in this layout and therefore we need a standardized way
to customize this class path.

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