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Hadoop QA commented on MAPREDUCE-1306: -------------------------------------- +1 overall. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12438267/MAPREDUCE-1306-20100308.patch against trunk revision 921230. +1 @author. The patch does not contain any @author tags. +1 tests included. The patch appears to include 10 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/Mapreduce-Patch-h6.grid.sp2.yahoo.net/515/testReport/ Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h6.grid.sp2.yahoo.net/515/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html Checkstyle results: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h6.grid.sp2.yahoo.net/515/artifact/trunk/build/test/checkstyle-errors.html Console output: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h6.grid.sp2.yahoo.net/515/console This message is automatically generated. > [MUMAK] Randomize the arrival of heartbeat responses > ---------------------------------------------------- > > Key: MAPREDUCE-1306 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-1306 > Project: Hadoop Map/Reduce > Issue Type: Improvement > Components: contrib/mumak > Affects Versions: 0.21.0, 0.22.0 > Reporter: Tamas Sarlos > Assignee: Tamas Sarlos > Fix For: 0.21.0, 0.22.0 > > Attachments: MAPREDUCE-1306-20100108.patch, > MAPREDUCE-1306-20100308-hong.patch, MAPREDUCE-1306-20100308.patch > > > We propose to make the following changes to mumak, MAPREDUCE-728 > - make the timing of heartbeat responses more realistic by adding an option > to randomly perturb them > - randomize the startup time of task trackers in a fixed interval > - remove 2 magic constants from SimulatorEngine and make sure that the first > job is submitted only after the entire cluster is up and running -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.