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https://issues.apache.org/jira/browse/HADOOP-3350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12594486#action_12594486
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Hadoop QA commented on HADOOP-3350:
-----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12381473/3350-0.patch
against trunk revision 653638.
+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 tests are needed for 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/2405/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2405/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2405/artifact/trunk/build/test/checkstyle-errors.html
Console output:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2405/console
This message is automatically generated.
> distcp should permit users to limit the number of maps
> ------------------------------------------------------
>
> Key: HADOOP-3350
> URL: https://issues.apache.org/jira/browse/HADOOP-3350
> Project: Hadoop Core
> Issue Type: Improvement
> Reporter: Chris Douglas
> Fix For: 0.18.0
>
> Attachments: 3350-0.patch
>
>
> distcp provides no user-configurable setting to affect the number of maps run
> during a copy. For large clusters, the current calculation- min(#bytes /
> 256MB, #nodes * 20)- can be overly aggressive.
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