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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-6757) NullPointerException for hadoop clients launched from streaming tasks
Date Fri, 07 May 2010 09:14:47 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6757?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12865095#action_12865095
] 

Hadoop QA commented on HADOOP-6757:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12443943/HADOOP-6757-v1.0.patch
  against trunk revision 941662.

    +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 warnings.

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

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

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

Test results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-h1.grid.sp2.yahoo.net/65/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-h1.grid.sp2.yahoo.net/65/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-h1.grid.sp2.yahoo.net/65/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-h1.grid.sp2.yahoo.net/65/console

This message is automatically generated.

> NullPointerException for hadoop clients launched from streaming tasks
> ---------------------------------------------------------------------
>
>                 Key: HADOOP-6757
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6757
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: scripts
>            Reporter: Amar Kamat
>            Assignee: Amar Kamat
>         Attachments: BZ-3620565-v1.0.patch, HADOOP-6757-v1.0.patch
>
>
> TaskRunner sets HADOOP_ROOT_LOGGER to info,TLA while launching the child tasks. TLA implicitly
assumes that that task-id information will be made available via the 'hadoop.tasklog.taskid'
parameter. 'hadoop.tasklog.taskid' is passed to the child task by the TaskRunner via HADOOP_CLIENT_OPTS.
When the streaming task launches a hadoop client (say hadoop job -list), the HADOOP_ROOT_LOGGER
of the hadoop client is set to 'info,TLA' but hadoop.tasklog.taskid is not set resulting into
NPE.

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