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[MAPREDUCE-5888] Failed job leaves hung AM after it unregisters - MapReduce - [issue]
...When a job fails the AM hangs during shutdown.  A non-daemon thread pool executor thread prevents the JVM teardown from completing, and the AM lingers on the cluster for the AM expiry i...
http://issues.apache.org/jira/browse/MAPREDUCE-5888    Author: Jason Lowe, 2014-07-31, 14:39
[MAPREDUCE-6010] HistoryServerFileSystemStateStore fails to update tokens - MapReduce - [issue]
...When token recovery is enabled and the file system state store is being used then tokens fail to be updated due to a rename destination conflict....
http://issues.apache.org/jira/browse/MAPREDUCE-6010    Author: Jason Lowe, 2014-07-29, 23:32
[MAPREDUCE-6011] Improve history server behavior during a recovery error - MapReduce - [issue]
...Currently when the history server encounters an error during recovery it is fatal without specific details on the error (e.g. which token was involved during the recovery error).  We sh...
http://issues.apache.org/jira/browse/MAPREDUCE-6011    Author: Jason Lowe, 2014-07-28, 19:04
Re: [DISCUSS] Assume Private-Unstable for classes that are not annotated - MapReduce - [mail # dev]
...I think that's a reasonable proposal as long as we understand it changes the burden from finding all the things that should be marked @Private to finding all the things that should be marked...
   Author: Jason Lowe, 2014-07-23, 14:23
[MAPREDUCE-5982] Task attempts that fail from the ASSIGNED state can disappear - MapReduce - [issue]
...If a task attempt fails in the ASSIGNED state, e.g.: container launch fails,  then it can disappear from the job history.  The task overview page will show subsequent attempts but ...
http://issues.apache.org/jira/browse/MAPREDUCE-5982    Author: Jason Lowe, 2014-07-18, 17:14
[MAPREDUCE-5885] build/test/test.mapred.spill causes release audit warnings - MapReduce - [issue]
...Multiple unit tests are creating files under hadoop-mapreduce-client-jobclient/build/test/test.mapred.spill which are causing release audit warnings during Jenkins patch precommit builds. &n...
http://issues.apache.org/jira/browse/MAPREDUCE-5885    Author: Jason Lowe, 2014-07-08, 19:20
[MAPREDUCE-5868] TestPipeApplication causing nightly build to fail - MapReduce - [issue]
...TestPipeApplication appears to be timing out which causes the nightly build to fail....
http://issues.apache.org/jira/browse/MAPREDUCE-5868    Author: Jason Lowe, 2014-07-08, 16:04
[MAPREDUCE-5044] Have AM trigger jstack on task attempts that timeout before killing them - MapReduce - [issue]
...When an AM expires a task attempt it would be nice if it triggered a jstack output via SIGQUIT before killing the task attempt.  This would be invaluable for helping users debug their h...
http://issues.apache.org/jira/browse/MAPREDUCE-5044    Author: Jason Lowe, 2014-07-03, 06:55
[MAPREDUCE-5267] History server should be more robust when cleaning old jobs - MapReduce - [issue]
...Ran across a situation where an admin user had accidentally created a directory in one of the date directories under /mapred/history/done/ that was not readable by the historyserver user. &n...
http://issues.apache.org/jira/browse/MAPREDUCE-5267    Author: Jason Lowe, 2014-07-03, 06:33
[MAPREDUCE-5891] Improved shuffle error handling across NM restarts - MapReduce - [issue]
...To minimize the number of map fetch failures reported by reducers across an NM restart it would be nice if reducers only reported a fetch failure after trying for at specified period of time...
http://issues.apache.org/jira/browse/MAPREDUCE-5891    Author: Jason Lowe, 2014-07-03, 06:33
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