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Hudson commented on MAPREDUCE-4425: ----------------------------------- Integrated in Hadoop-Hdfs-0.23-Build #434 (See [https://builds.apache.org/job/Hadoop-Hdfs-0.23-Build/434/]) MAPREDUCE-4425. Speculation + Fetch failures can lead to a hung job (jlowe via bobby) (Revision 1408411) Result = SUCCESS bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1408411 Files : * /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/CHANGES.txt * /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TaskImpl.java * /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TestTaskImpl.java > Speculation + Fetch failures can lead to a hung job > --------------------------------------------------- > > Key: MAPREDUCE-4425 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-4425 > Project: Hadoop Map/Reduce > Issue Type: Bug > Components: mrv2 > Affects Versions: 0.23.1 > Reporter: Siddharth Seth > Assignee: Jason Lowe > Priority: Critical > Fix For: 3.0.0, 2.0.3-alpha, 0.23.5 > > Attachments: MAPREDUCE-4425-branch23.patch, MAPREDUCE-4425.patch, > MAPREDUCE-4425.patch > > > After a task goes to SUCCEEDED, FAILED/KILLED attempts are ignored. > 1. attemp1 starts > 2. speculative attempt starts > 3. attempt 1 completes - Task moves to SUCCEEDED state > 4. speculative attempt is KILLED > 5. T_ATTEMPT_KILLED is ignored. > 6. attemp1 1 fails with TOO_MANY_FETCH_FAILURES > The job will effectively hang, since a new task attempt isn't started. -- 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