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Arpit Gupta commented on MAPREDUCE-4749: ---------------------------------------- Test patch results {code} [exec] BUILD SUCCESSFUL [exec] Total time: 5 minutes 6 seconds [exec] [exec] [exec] [exec] [exec] -1 overall. [exec] [exec] +1 @author. The patch does not contain any @author tags. [exec] [exec] +1 tests included. The patch appears to include 2 new or modified tests. [exec] [exec] +1 javadoc. The javadoc tool did not generate any warning messages. [exec] [exec] +1 javac. The applied patch does not increase the total number of javac compiler warnings. [exec] [exec] -1 findbugs. The patch appears to introduce 9 new Findbugs (version 1.3.9) warnings. [exec] [exec] [exec] [exec] [exec] ====================================================================== [exec] ====================================================================== [exec] Finished build. [exec] ====================================================================== [exec] ====================================================================== [exec] [exec] {code} Findbugs warnings are not related to this patch. > Killing multiple attempts of a task taker longer as more attempts are killed > ---------------------------------------------------------------------------- > > Key: MAPREDUCE-4749 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-4749 > Project: Hadoop Map/Reduce > Issue Type: Bug > Affects Versions: 1.1.0 > Reporter: Arpit Gupta > Assignee: Arpit Gupta > Attachments: MAPREDUCE-4749.branch-1.patch, > MAPREDUCE-4749.branch-1.patch, MAPREDUCE-4749.branch-1.patch, > MAPREDUCE-4749.branch-1.patch > > > The following was noticed on a mr job running on hadoop 1.1.0 > 1. Start an mr job with 1 mapper > 2. Wait for a min > 3. Kill the first attempt of the mapper and then subsequently kill the other > 3 attempts in order to fail the job > The time taken to kill the task grew exponentially. > 1st attempt was killed immediately. > 2nd attempt took a little over a min > 3rd attempt took approx. 20 mins > 4th attempt took around 3 hrs. > The command used to kill the attempt was "hadoop job -fail-task" > Note that the command returned immediately as soon as the fail attempt was > accepted but the time the attempt was actually killed was as stated above. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira