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[MAPREDUCE-5848] MapReduce counts forcibly preempted containers as FAILED - MapReduce - [issue]
...The MapReduce AM is considering a forcibly preempted container as FAILED, while I think it should be considered as KILLED (i.e., not count against the maximum number of failures)....
http://issues.apache.org/jira/browse/MAPREDUCE-5848    Author: Carlo Curino, 2014-04-19, 22:18
[MAPREDUCE-4937] MR AM handles an oversized split metainfo file poorly - MapReduce - [issue]
...When an job runs with a split metainfo file that's larger than it has been configured to handle then it just crashes.  This leaves the user with a less-than-ideal debug session since th...
http://issues.apache.org/jira/browse/MAPREDUCE-4937    Author: Jason Lowe, 2014-04-19, 16:01
[MAPREDUCE-5642] TestMiniMRChildTask fails on Windows - MapReduce - [issue]
...The test fails on Windows as a regression from MAPREDUCE-5451. In MAPREDUCE-5451, we set default config of "mapreduce.admin.user.env" to "PATH=%PATH%;%HADOOP_COMMON_HOME%bin" on Windows. In ...
http://issues.apache.org/jira/browse/MAPREDUCE-5642    Author: Chuan Liu, 2014-04-19, 16:01
[MAPREDUCE-5465] Container killed before hprof dumps profile.out - MapReduce - [issue]
...If there is profiling enabled for mapper or reducer then hprof dumps profile.out at process exit. It is dumped after task signaled to AM that work is finished.AM kills container with finishe...
http://issues.apache.org/jira/browse/MAPREDUCE-5465    Author: Radim Kolar, 2014-04-19, 09:59
[MAPREDUCE-5812]  Make task context available to OutputCommitter.isRecoverySupported() - MapReduce - [issue]
...Background==========The system like Hive provides its version of  OutputCommitter. The custom implementation of isRecoverySupported() requires task context. From taskContext:getConfigur...
http://issues.apache.org/jira/browse/MAPREDUCE-5812    Author: Mohammad Kamrul Islam, 2014-04-19, 03:37
[MAPREDUCE-5847] Remove redundant code for fileOutputByteCounter in MapTask and ReduceTask - MapReduce - [issue]
...Both MapTask and ReduceTask carry redundant code to update BYTES_WRITTEN counter. However, Task.updateCounters uses file system stats for this....
http://issues.apache.org/jira/browse/MAPREDUCE-5847    Author: Gera Shegalov, 2014-04-19, 00:24
[MAPREDUCE-5850] PATH environment variable contains duplicate values in map and reduce tasks on Windows. - MapReduce - [issue]
...The value of the PATH environment variable gets appended twice before execution of a container for a map or reduce task.  This is ultimately harmless at runtime, but it does cause a fai...
http://issues.apache.org/jira/browse/MAPREDUCE-5850    Author: Chris Nauroth, 2014-04-18, 23:41
[MAPREDUCE-5841] uber job doesn't terminate on getting mapred job kill - MapReduce - [issue]
...If you issue a "mapred job -kill" against a uberized job, the job (and the yarn application) state transitions to KILLED, but the application master process continues to run. The job actuall...
http://issues.apache.org/jira/browse/MAPREDUCE-5841    Author: Sangjin Lee, 2014-04-18, 20:07
[MAPREDUCE-5842] uber job with LinuxContainerExecutor cause exception - MapReduce - [issue]
...enable ubertask with linux container executer cause exception:2014-04-17 23:26:07,859 DEBUG [localfetcher#1] org.apache.hadoop.mapreduce.task.reduce.LocalFetcher: LocalFetcher 1 going to fet...
http://issues.apache.org/jira/browse/MAPREDUCE-5842    Author: Atkins, 2014-04-18, 20:05
[MAPREDUCE-5844] Reducer Preemption is too aggressive - MapReduce - [issue]
...We observed cases where the reducer preemption makes the job finish much later, and the preemption does not seem to be necessary since after preemption both the preempted reducer and the map...
http://issues.apache.org/jira/browse/MAPREDUCE-5844    Author: Maysam Yabandeh, 2014-04-18, 17:26
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