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https://issues.apache.org/jira/browse/HADOOP-3598?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12606680#action_12606680
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Hadoop QA commented on HADOOP-3598:
-----------------------------------
+1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12384351/HADOOP-3598_0_20080619.patch
against trunk revision 669790.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 9 new or modified tests.
+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/2705/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2705/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2705/artifact/trunk/build/test/checkstyle-errors.html
Console output:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2705/console
This message is automatically generated.
> Map-Reduce framework needlessly creates temporary _${taskid} directories for
> Maps
> ---------------------------------------------------------------------------------
>
> Key: HADOOP-3598
> URL: https://issues.apache.org/jira/browse/HADOOP-3598
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.18.0
> Reporter: Arun C Murthy
> Assignee: Arun C Murthy
> Priority: Blocker
> Fix For: 0.18.0
>
> Attachments: HADOOP-3598_0_20080619.patch,
> HADOOP-3598_0_20080619.patch, HADOOP-3598_0_20080619.patch
>
>
> The staging directory for task-outputs (i.e.
> ${mapred.out.dir}/_temporary/_${taskid}) should only be created when Maps
> produce output on HDFS, which usually isn't the case. This plays very badly
> with HDFS quotas and may lead to thousands of temp names in the FS namespace,
> there-by overhauling the quotas. IAC, it isn't good to needlessly create
> these directories.
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