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Posted to common-dev@hadoop.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2009/03/01 10:35:15 UTC
[jira] Commented: (HADOOP-4842) Streaming combiner should allow
command, not just JavaClass
[ https://issues.apache.org/jira/browse/HADOOP-4842?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12677798#action_12677798 ]
Hadoop QA commented on HADOOP-4842:
-----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12401102/patch-4842-1.txt
against trunk revision 748861.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 3 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 Eclipse classpath. The patch retains Eclipse classpath integrity.
+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 failed contrib unit tests.
Test results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-vesta.apache.org/24/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-vesta.apache.org/24/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-vesta.apache.org/24/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-vesta.apache.org/24/console
This message is automatically generated.
> Streaming combiner should allow command, not just JavaClass
> -----------------------------------------------------------
>
> Key: HADOOP-4842
> URL: https://issues.apache.org/jira/browse/HADOOP-4842
> Project: Hadoop Core
> Issue Type: Improvement
> Components: contrib/streaming
> Reporter: Marco Nicosia
> Assignee: Amareshwari Sriramadasu
> Fix For: 0.21.0
>
> Attachments: patch-4842-1.txt, patch-4842.txt
>
>
> Streaming jobs are way slower than Java jobs for many reasons, but certainly stopping the shell-only programmer from using the combiner feature won't help. Right now, the streaming usage says:
> {quote}
> -mapper <cmd|JavaClassName> The streaming command to run
> -combiner <JavaClassName> Combiner has to be a Java class
> -reducer <cmd|JavaClassName> The streaming command to run
> {quote}
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