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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5232) log classpath and other key properties on child JVM start
Date Fri, 10 May 2013 00:03:15 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13653400#comment-13653400
] 

Hadoop QA commented on MAPREDUCE-5232:
--------------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12582546/MAPREDUCE-5232.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 1 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:green}+1 core tests{color}.  The patch passed 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-core.

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

Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/3608//testReport/
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/3608//console

This message is automatically generated.
                
> 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
>         Attachments: MAPREDUCE-5232-branch-2.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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