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Re: [VOTE] Release Apache Hadoop 2.4.0 - MapReduce - [mail # dev]
...Here's my late +1, was just finishing up looking at the release.- Verified signatures and digests- Examined LICENSE file- Installed binary distribution, ran some sample MapReduce jobs and ex...
   Author: Jason Lowe, 2014-04-07, 20:42
[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, 2014-03-31, 21:23
[MAPREDUCE-5542] Killing a job just as it finishes can generate an NPE in client - MapReduce - [issue]
...If a client tries to kill a job just as the job is finishing then the client can crash with an NPE....
http://issues.apache.org/jira/browse/MAPREDUCE-5542    Author: Jason Lowe, 2014-03-26, 23:48
[MAPREDUCE-5758] Reducer local data is not deleted until job completes - MapReduce - [issue]
...Ran into an instance where a reducer shuffled a large amount of data and subsequently failed, but the local data is not purged when the task fails but only after the entire job completes. &n...
http://issues.apache.org/jira/browse/MAPREDUCE-5758    Author: Jason Lowe, 2014-03-22, 22:53
[MAPREDUCE-5493] In-memory map outputs can be leaked after shuffle completes - MapReduce - [issue]
...MergeManagerImpl#close adds the contents of inMemoryMergedMapOutputs and inMemoryMapOutputs to a list of map outputs that is subsequently processed, but it does not clear those sets.  T...
http://issues.apache.org/jira/browse/MAPREDUCE-5493    Author: Jason Lowe, 2014-03-19, 18:42
[MAPREDUCE-5251] Reducer should not implicate map attempt if it has insufficient space to fetch map output - MapReduce - [issue]
...A job can fail if a reducer happens to run on a node with insufficient space to hold a map attempt's output.  The reducer keeps reporting the map attempt as bad, and if the map attempt ...
http://issues.apache.org/jira/browse/MAPREDUCE-5251    Author: Jason Lowe, 2014-03-19, 18:35
[MAPREDUCE-5456] TestFetcher.testCopyFromHostExtraBytes is missing - MapReduce - [issue]
...I noticed that the test to verify the fix from MAPREDUCE-5308 was deleted by MAPREDUCE-5194.  It looks like an accidental deletion from an upmerge.  We should reinstate this unit t...
http://issues.apache.org/jira/browse/MAPREDUCE-5456    Author: Jason Lowe, 2014-03-14, 14:56
[MAPREDUCE-5727] History server web page can filter without showing filter keyword - MapReduce - [issue]
...I loaded up a job conf page on the history server and used one of the search boxes to narrow the results.  I then navigated to other pages (e.g.: map tasks, logs, etc.) then navigated b...
http://issues.apache.org/jira/browse/MAPREDUCE-5727    Author: Jason Lowe, 2014-03-11, 21:31
[MAPREDUCE-5656] bzip2 codec can drop records when reading data in splits - MapReduce - [issue]
...Bzip2Codec.BZip2CompressionInputStream can cause records to be dropped when reading them in splits based on where record delimiters occur relative to compression block boundaries.Thanks to K...
http://issues.apache.org/jira/browse/MAPREDUCE-5656    Author: Jason Lowe, 2014-02-27, 14:40
[MAPREDUCE-5265] History server admin service to refresh user and superuser group mappings - MapReduce - [issue]
...The history server needs an admin interface with the ability to1. refresh the super user groups configurations,2. refresh user to group mappings,3. refresh its admin acls,4. get groups given...
http://issues.apache.org/jira/browse/MAPREDUCE-5265    Author: Jason Lowe, 2014-02-24, 20:58
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