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Posted to common-dev@hadoop.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2008/09/02 11:30:44 UTC
[jira] Commented: (HADOOP-3748) Flag to make tasks to send counter
information only at the end of the task
[ https://issues.apache.org/jira/browse/HADOOP-3748?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12627615#action_12627615 ]
Hadoop QA commented on HADOOP-3748:
-----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12389319/%5BHADOOP-3748%5D.patch
against trunk revision 691099.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 6 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 generated 306 release audit warnings (more than the trunk's current 305 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/3157/testReport/
Release audit warnings: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3157/artifact/trunk/current/releaseAuditDiffWarnings.txt
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3157/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3157/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3157/console
This message is automatically generated.
> Flag to make tasks to send counter information only at the end of the task
> --------------------------------------------------------------------------
>
> Key: HADOOP-3748
> URL: https://issues.apache.org/jira/browse/HADOOP-3748
> Project: Hadoop Core
> Issue Type: Improvement
> Components: mapred
> Environment: all
> Reporter: Alejandro Abdelnur
> Attachments: [HADOOP-3748].patch
>
>
> Currently counters are streaming from the task to the jobtracker as the task progresses. If the number of counters is large this has a significant impact on the network traffic as well as in the JobTracker load.
> The should be a flag, for example by counter-group, that indicates that the counters are to be reported at the end of the task. By default this flag should be set to false for all counter-groups maintaining the current behavior.
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