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[MAPREDUCE-4503] Should throw InvalidJobConfException if duplicates found in cacheArchives or cacheFiles - MapReduce - [issue]
...in 1.0 if a file was both in a jobs cache archives and cache files, and InvalidJobConfException was thrown.  We should replicate this behavior on mrv2.  We should also extend it so...
http://issues.apache.org/jira/browse/MAPREDUCE-4503    Author: Robert Joseph Evans, 2014-09-04, 02:00
[MAPREDUCE-4647] We should only unjar jobjar if there is a lib directory in it. - MapReduce - [issue]
...For backwards compatibility we recently added made is so we would unjar the job.jar and add anything to the classpath in the lib directory of that jar.  But this also slows job startup ...
http://issues.apache.org/jira/browse/MAPREDUCE-4647    Author: Robert Joseph Evans, 2014-09-04, 01:57
[MAPREDUCE-4458] Warn if java.library.path is used for AM or Task - MapReduce - [issue]
...If java.library.path is used on the command line for launching an MRAppMaster or an MR Task, it could conflict with how standard Hadoop/HDFS JNI libraries and dependencies are found.  A...
http://issues.apache.org/jira/browse/MAPREDUCE-4458    Author: Robert Joseph Evans, 2014-09-04, 00:27
[MAPREDUCE-5103] Remove dead code QueueManager and JobEndNotifier - MapReduce - [issue]
...There are a few classes that are dead or duplicate code at this point.  org/apache/hadoop/mapred/JobEndNotifier.javaorg/apache/hadoop/mapred/QueueManager.javaorg/apache/hadoop/mapred/Qu...
http://issues.apache.org/jira/browse/MAPREDUCE-5103    Author: Robert Joseph Evans, 2014-04-30, 13:39
[MAPREDUCE-4901] JobHistoryEventHandler errors should be fatal - MapReduce - [issue]
...To be able to truly fix issues like MAPREDUCE-4819 and MAPREDUCE-4832, we need a 2 phase commit where a subsequent AM can be sure that at a specific point in time it knows exactly if any tas...
http://issues.apache.org/jira/browse/MAPREDUCE-4901    Author: Robert Joseph Evans, 2014-04-16, 21:42
[MAPREDUCE-4775] Reducer will "never" commit suicide - MapReduce - [issue]
...In 1.0 there are a number of conditions that will cause a reducer to commit suicide and exit.This includes if it is stalled, if the error percentage of total fetches is too high.  In th...
http://issues.apache.org/jira/browse/MAPREDUCE-4775    Author: Robert Joseph Evans, 2014-04-16, 21:36
[MAPREDUCE-4766] in diagnostics task ids and task attempt ids should become clickable links - MapReduce - [issue]
...It would be great if when we see a task id or a task attempt id in the diagnostics that we change it to be a clickable link....
http://issues.apache.org/jira/browse/MAPREDUCE-4766    Author: Robert Joseph Evans, 2014-04-16, 21:31
[MAPREDUCE-3801] org.apache.hadoop.mapreduce.v2.app.TestRuntimeEstimators.testExponentialEstimator fails intermittently - MapReduce - [issue]
...org.apache.hadoop.mapreduce.v2.app.TestRuntimeEstimators,testExponentialEstimator fails intermittently...
http://issues.apache.org/jira/browse/MAPREDUCE-3801    Author: Robert Joseph Evans, 2013-10-02, 22:00
[MAPREDUCE-3520] Allow for metrics to be exchanged between maps and reduces - MapReduce - [issue]
...Some people on the mailing lists have requested having read access in reducers to counters that were set by mappers.  I propose that we provide a new interface for doing this.  The...
http://issues.apache.org/jira/browse/MAPREDUCE-3520    Author: Robert Joseph Evans, 2013-10-01, 14:55
[MAPREDUCE-3954] Clean up passing HEAPSIZE to yarn and mapred commands. - MapReduce - [issue]
...Currently the heap size for all of these is set in yarn-env.sh.  JAVA_HEAP_MAX is set to -Xmx1000m unless YARN_HEAPSIZE is set.  If it is set it will override JAVA_HEAP_MAX.  ...
http://issues.apache.org/jira/browse/MAPREDUCE-3954    Author: Robert Joseph Evans, 2013-08-25, 15:32
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