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[MAPREDUCE-5261] TestRMContainerAllocator is exiting and failing the build - MapReduce - [issue]
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...Recent builds are failing because TestRMContainerAllocator is exiting rather than succeeding or failing....
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http://issues.apache.org/jira/browse/MAPREDUCE-5261
Author: Jason Lowe,
2013-05-21, 23:57
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[MAPREDUCE-5257] TestContainerLauncherImpl fails - MapReduce - [issue]
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...TestContainerLauncherImpl is hanging and eventually being killed by the surefire timeout which fails a maven test build....
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http://issues.apache.org/jira/browse/MAPREDUCE-5257
Author: Jason Lowe,
2013-05-20, 14:21
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[MAPREDUCE-4927] Historyserver 500 error due to NPE when accessing specific counters page for failed job - MapReduce - [issue]
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...Went to the historyserver page for a job that failed and examined the counters page. When I clicked on a specific counter, the historyserver returned a 500 error. The historyserv...
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http://issues.apache.org/jira/browse/MAPREDUCE-4927
Author: Jason Lowe,
2013-05-18, 14:36
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[MAPREDUCE-5059] Job overview shows average merge time larger than for any reduce attempt - MapReduce - [issue]
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...When looking at a job overview page on the history server, the Average Merge Time is often reported with a value that is far larger than the Elapsed Merge Time shown for any reduce task atte...
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http://issues.apache.org/jira/browse/MAPREDUCE-5059
Author: Jason Lowe,
2013-05-18, 13:39
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[MAPREDUCE-5124] AM lacks flow control for task events - MapReduce - [issue]
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...The AM does not have any flow control to limit the incoming rate of events from tasks. If the AM is unable to keep pace with the rate of incoming events for a sufficient period of time...
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http://issues.apache.org/jira/browse/MAPREDUCE-5124
Author: Jason Lowe,
2013-05-16, 15:43
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[MAPREDUCE-5251] Reducer should not implicate map attempt if it has insufficient space to fetch map output - MapReduce - [issue]
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...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 ...
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http://issues.apache.org/jira/browse/MAPREDUCE-5251
Author: Jason Lowe,
2013-05-15, 14:53
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[MAPREDUCE-5168] Reducer can OOM during shuffle because on-disk output stream not released - MapReduce - [issue]
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...If a reducer needs to shuffle a map output to disk, it opens an output stream and writes the data to disk. However it does not release the reference to the output stream within the Map...
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http://issues.apache.org/jira/browse/MAPREDUCE-5168
Author: Jason Lowe,
2013-05-14, 18:04
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[MAPREDUCE-5211] Reducer intermediate files can collide during merge - MapReduce - [issue]
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...The OnDiskMerger.merge method constructs an output path that is not unique to a reduce attempt, and as a result can result in a file collision with other reducers from the same app that are ...
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http://issues.apache.org/jira/browse/MAPREDUCE-5211
Author: Jason Lowe,
2013-05-13, 21:57
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Re: 2.0.4 beta vs 2.0.3 - MapReduce - [mail # dev]
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...This may be related to MAPREDUCE-5168 . There's a memory leak of sorts in the shuffle if many map outputs end up being merged from disk. Jason On 05/04/2013 06:...
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Author: Jason Lowe,
2013-05-06, 15:09
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Re: [VOTE] Release Apache Hadoop 2.0.4-alpha - MapReduce - [mail # dev]
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...+1 (binding) - verified signatures and checksums - installed single-node cluster from binaries and ran sample jobs - built and installed single-node cluster from source and ran sample ...
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Author: Jason Lowe,
2013-04-19, 22:43
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