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[MAPREDUCE-6058] native-task: KVTest and LargeKVTest should check mr job is sucessful - MapReduce - [issue]
...When running KVTest and LargeKVTest, if the job failed for some reason(lack libhadoop.so etc), both native and normal job failed, and both compare empty output directory, so the test passes ...
http://issues.apache.org/jira/browse/MAPREDUCE-6058    Author: Binglin Chang, 2014-09-05, 05:24
[MAPREDUCE-6072] Update INSTALL document - MapReduce - [issue]
..."./hadoop-mapreduce-project/INSTALL" has become stale. The document shows svn as SCM, now we use git ant to compile hadoop-mapreduce-examplesThe document should be updated to link BUILDING.t...
http://issues.apache.org/jira/browse/MAPREDUCE-6072    Author: Akira AJISAKA, 2014-09-05, 04:07
[MAPREDUCE-6063] In sortAndSpill of MapTask.java, size is calculated wrongly when bufend < bufstart. - MapReduce - [issue]
...In sortAndSpill of MapTask.java, size is calculated wrongly when bufend < bufstart.  we should change (bufvoid - bufend) + bufstart to (bufvoid - bufstart) + bufend.Should change&nbs...
http://issues.apache.org/jira/browse/MAPREDUCE-6063    Author: zhihai xu, 2014-09-05, 04:05
Would multireducers be of interest to Hadoop MR core? - MapReduce - [mail # dev]
...Hi,Hadoop includes MultipleOutputs class to deal with MR job that needs towrite to multiple output formats.We at Akamai have extended the idea, and allowed multiple mappers to writeto multip...
   Author: Elazar Leibovich, 2014-09-04, 22:42
[MAPREDUCE-5279] Jobs can deadlock if headroom is limited by cpu instead of memory - MapReduce - [issue]
...YARN-2 imported cpu dimension scheduling, but MR RMContainerAllocator doesn't take into account virtual cores while scheduling reduce tasks.This may cause more reduce tasks to be scheduled b...
http://issues.apache.org/jira/browse/MAPREDUCE-5279    Author: Peng Zhang, 2014-09-04, 16:52
[MAPREDUCE-5221] Reduce side Combiner is not used when using the new API - MapReduce - [issue]
...If a combiner is specified using o.a.h.mapreduce.Job.setCombinerClass - this will silently ignored on the reduce side since the reduce side usage is only aware of the old api combiner.This d...
http://issues.apache.org/jira/browse/MAPREDUCE-5221    Author: Siddharth Seth, 2014-09-04, 04:14
[MAPREDUCE-6057] Remove obsolete entries from mapred-default.xml - MapReduce - [issue]
...The following properties are defined in mapred-default.xml but no longer exist in MRJobConfig.  map.sort.class  mapred.child.env  mapred.child.java.opts &n...
http://issues.apache.org/jira/browse/MAPREDUCE-6057    Author: Ray Chiang, 2014-09-04, 03:56
[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, 2014-09-04, 03:40
[MAPREDUCE-5688] TestStagingCleanup fails intermittently with JDK7 - MapReduce - [issue]
...Due to random ordering ordering in JDK7, the test TestStagingCleanup#testDeletionofStagingOnKillLastTry is failingTests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 4.231 sec &l...
http://issues.apache.org/jira/browse/MAPREDUCE-5688    Author: Mit Desai, 2014-09-04, 02:15
[MAPREDUCE-5791] Shuffle phase is slow in Windows - FadviseFileRegion::transferTo does not read disks efficiently - MapReduce - [issue]
...transferTo method in org.apache.hadoop.mapred.FadvisedFileRegion is using transferTo method from a FileChannel to transfer data from a disk to socket. This is performing slow in Windows, slo...
http://issues.apache.org/jira/browse/MAPREDUCE-5791    Author: Nikola Vujic, 2014-09-04, 02:15
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