[
https://issues.apache.org/jira/browse/MAPREDUCE-2118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12999981#comment-12999981
]
Hadoop QA commented on MAPREDUCE-2118:
--------------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12470186/mapreduce.2118.2.patch
against trunk revision 1074251.
+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 (version 1.3.9)
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 failed contrib unit tests.
+1 system test framework. The patch passed system test framework compile.
Test results:
https://hudson.apache.org/hudson/job/PreCommit-MAPREDUCE-Build/61//testReport/
Findbugs warnings:
https://hudson.apache.org/hudson/job/PreCommit-MAPREDUCE-Build/61//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
https://hudson.apache.org/hudson/job/PreCommit-MAPREDUCE-Build/61//console
This message is automatically generated.
> optimize getJobSetupAndCleanupTasks
> ------------------------------------
>
> Key: MAPREDUCE-2118
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2118
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Reporter: Joydeep Sen Sarma
> Assignee: Joydeep Sen Sarma
> Attachments: mapreduce-2118.1.patch, mapreduce.2118.2.patch
>
>
> in every heartbeat, while holding the JobTracker global lock, all jobs are
> scanned for job setup/cleanup, task setup/cleanup. on a large system with
> many trackers (and heartbeats) and many jobs - this becomes the bottleneck
> for JT throughput.
> One possible route may be to rework the code to not require the JT lock while
> asking the JIP whether it has a setup/cleanup task.
--
This message is automatically generated by JIRA.
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
