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[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, 2014-08-28, 02:50
[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, 2014-08-27, 16:33
[MAPREDUCE-4818] Easier identification of tasks that timeout during localization - MapReduce - [issue]
...When a task is taking too long to localize and is killed by the AM due to task timeout, the job UI/history is not very helpful.  The attempt simply lists a diagnostic stating it was kil...
http://issues.apache.org/jira/browse/MAPREDUCE-4818    Author: Jason Lowe, 2014-08-25, 14:28
[MAPREDUCE-4815] FileOutputCommitter.commitJob can be very slow for jobs with many output files - MapReduce - [issue]
...If a job generates many files to commit then the commitJob method call at the end of the job can take minutes.  This is a performance regression from 1.x, as 1.x had the tasks commit di...
http://issues.apache.org/jira/browse/MAPREDUCE-4815    Author: Jason Lowe, 2014-08-23, 00:48
[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, 2014-08-15, 16:11
[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, 2014-08-15, 06:48
Re: [VOTE] Release Apache Hadoop 2.5.0 RC2 - MapReduce - [mail # dev]
...+1 (binding)- verified signatures and digests- built from source- deployed a single-node cluster- ran some sample jobsJasonOn 08/06/2014 03:59 PM, Karthik Kambatla wrote: ...
   Author: Jason Lowe, 2014-08-10, 23:00
Re: [VOTE] Migration from subversion to git for version control - MapReduce - [mail # dev]
...+1JasonOn 08/08/2014 09:57 PM, Karthik Kambatla wrote: ...
   Author: Jason Lowe, 2014-08-10, 20:45
[MAPREDUCE-6021] MR AM should have working directory in LD_LIBRARY_PATH - MapReduce - [issue]
...Tasks implicitly pick up shared libraries added to the job because the task launch context explicitly adds the container working directory to LD_LIBRARY_PATH.  However the same is not d...
http://issues.apache.org/jira/browse/MAPREDUCE-6021    Author: Jason Lowe, 2014-08-08, 16:21
[MAPREDUCE-6022] map_input_file is missing from streaming job environment - MapReduce - [issue]
...When running a streaming job the 'map_input_file' environment variable is not being set.  This property is deprecated, but in the past deprecated properties still appeared in a stream j...
http://issues.apache.org/jira/browse/MAPREDUCE-6022    Author: Jason Lowe, 2014-08-02, 03:20
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