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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5232) log classpath and other key properties on child JVM start
Date Wed, 15 May 2013 10:49:21 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13658233#comment-13658233
] 

Hudson commented on MAPREDUCE-5232:
-----------------------------------

Integrated in Hadoop-Yarn-trunk #210 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/210/])
    MAPREDUCE-5232. Add a configuration to be able to log classpath and other system properties
on mapreduce JVMs startup. Contributed by Sangjin Lee. (Revision 1482643)

     Result = SUCCESS
vinodkv : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1482643
Files : 
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapred/YarnChild.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/MRAppMaster.java
* /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-common/src/test/java/org/apache/hadoop/mapreduce/v2/util/TestMRApps.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/MRJobConfig.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/resources/mapred-default.xml

                
> log classpath and other key properties on child JVM start
> ---------------------------------------------------------
>
>                 Key: MAPREDUCE-5232
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5232
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: mrv1, mrv2
>    Affects Versions: 2.0.4-alpha
>            Reporter: Sangjin Lee
>            Assignee: Sangjin Lee
>             Fix For: 3.0.0
>
>         Attachments: MAPREDUCE-5232-branch-2.patch, MAPREDUCE-5232-branch-2.patch, MAPREDUCE-5232-branch-2.patch,
MAPREDUCE-5232.patch, MAPREDUCE-5232.patch, MAPREDUCE-5232.patch
>
>
> It would be great if we log vital information such as classpath, etc. upon a mapreduce
child JVM start. This would help a great deal in terms of troubleshooting classpath issues,
etc. Today it is pretty difficult to debug this unless you preserve the container script.
> Maybe it can log things like classpath, os name/version, java version, etc. at the beginning
of the child JVM start.

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