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[MAPREDUCE-3971] Job History web services need to have limits on the number of items they can return. - MapReduce - [issue]
...The Job History web services canput a very large load on the job history server.  We should put in a limit on the number of entries that can be returned by the web service, and also add...
http://issues.apache.org/jira/browse/MAPREDUCE-3971    Author: Robert Joseph Evans, 2015-03-26, 23:21
[MAPREDUCE-3274] Race condition in MR App Master Preemtion can cause a dead lock - MapReduce - [issue]
...There appears to be a race condition in the MR App Master in relation to preempting reducers to let a mapper run.  In the particular case that I have been debugging a reducer was select...
http://issues.apache.org/jira/browse/MAPREDUCE-3274    Author: Robert Joseph Evans, 2015-03-16, 17:57
[MAPREDUCE-2926] 500 Error in ResourceManager UI - MapReduce - [issue]
...When accessing the resource manager UI the following is returnedProblem accessing /. Reason:    org.codehaus.jackson.type.JavaType.<init>(Ljava/lang/Class;)VCaused by:ja...
http://issues.apache.org/jira/browse/MAPREDUCE-2926    Author: Robert Joseph Evans, 2015-03-16, 17:57
[MAPREDUCE-2913] TestMRJobs.testFailingMapper does not assert the correct thing. - MapReduce - [issue]
...    Assert.assertEquals(TaskCompletionEvent.Status.FAILED,         events[0].getStatus().FAILED);    Assert.assertEquals(TaskCompletion...
http://issues.apache.org/jira/browse/MAPREDUCE-2913    Author: Robert Joseph Evans, 2015-03-16, 17:57
[MAPREDUCE-2659] MR-279: ShuffleHandler should use Protocol Buffers for ServiceData - MapReduce - [issue]
...Auxiliary Services (Specifically ShuffleHandler) should use ProtocolBuffers for storing/retrieving data in the ByteBuffer.  Right now there are TODOs to have the format include a versio...
http://issues.apache.org/jira/browse/MAPREDUCE-2659    Author: Robert Joseph Evans, 2015-03-09, 21:34
[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
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB