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Re: 2.0.4 beta vs 2.0.3 - MapReduce - [mail # dev]
...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:...
   Author: Jason Lowe, 2013-05-06, 15:09
[MAPREDUCE-5144] TestAMWebApp.testConfView has poor test coverage - MapReduce - [issue]
...testConfView is supposed to test the rendering of a job's configuration page, but the rendering code exits early with, "Sorry, can't do anything without a JobID."  Therefore it's not re...
http://issues.apache.org/jira/browse/MAPREDUCE-5144    Author: Jason Lowe, 2013-04-11, 16:32
[MAPREDUCE-5043] Fetch failure processing can cause AM event queue to backup and eventually OOM - MapReduce - [issue]
...Saw an MRAppMaster with a 3G heap OOM.  Upon investigating another instance of it running, we saw the UI in a weird state where the task table and task attempt tables in the job overvie...
http://issues.apache.org/jira/browse/MAPREDUCE-5043    Author: Jason Lowe, 2013-04-02, 15:31
[MAPREDUCE-5114] Subsequent AM attempt can crash trying to read prior AM attempt information - MapReduce - [issue]
...Saw the second AM attempt of a job fail early during startup because it tried to read the AMInfos from the previous attempt's history file and hit an error that wasn't an IOException.  ...
http://issues.apache.org/jira/browse/MAPREDUCE-5114    Author: Jason Lowe, 2013-03-28, 20:51
[MAPREDUCE-5090] TotalOrderPartitioner does not recognize total.order.partitioner.* settings - MapReduce - [issue]
...There is a backwards-compatibility issue where TotalOrderPartitioner no longer recognizes the Hadoop 1.x properties such as total.order.partitioner.natural.order, total.order.partitioner.max...
http://issues.apache.org/jira/browse/MAPREDUCE-5090    Author: Jason Lowe, 2013-03-21, 22:19
[MAPREDUCE-4784] TestRecovery occasionally fails - MapReduce - [issue]
...TestRecovery is occasionally failing with this error:testCrashed(org.apache.hadoop.mapreduce.v2.app.TestRecovery): TaskAttempt state is not correct (timedout) expected:<FAILED> but was...
http://issues.apache.org/jira/browse/MAPREDUCE-4784    Author: Jason Lowe, 2013-03-20, 01:39
[MAPREDUCE-5003] AM recovery should recreate records for attempts that were incomplete - MapReduce - [issue]
...As discussed in MAPREDUCE-4992, it would be nice if the AM recovered task attempt entries for all task attempts launched by the prior app attempt even if those task attempts did not complete...
http://issues.apache.org/jira/browse/MAPREDUCE-5003    Author: Jason Lowe, 2013-03-18, 19:54
[MAPREDUCE-4993] AM thinks it was killed when an error occurs setting up a task container launch context - MapReduce - [issue]
...If an IOException occurs while setting up a container launch context for a task then the AM exits with a KILLED status and no diagnostics.  The job should be marked as FAILED (or maybe ...
http://issues.apache.org/jira/browse/MAPREDUCE-4993    Author: Jason Lowe, 2013-03-07, 15:30
[MAPREDUCE-5027] Shuffle does not limit number of outstanding connections - MapReduce - [issue]
...The ShuffleHandler does not have any configurable limits to the number of outstanding connections allowed.  Therefore a node with many map outputs and many reducers in the cluster tryin...
http://issues.apache.org/jira/browse/MAPREDUCE-5027    Author: Jason Lowe, 2013-03-06, 14:04
[MAPREDUCE-4871] AM uses mapreduce.jobtracker.split.metainfo.maxsize but mapred-default has mapreduce.job.split.metainfo.maxsize - MapReduce - [issue]
...When the user needs to configure a larger split metainfo file size, mapred-default.xml points to the mapreduce.job.split.metainfo.maxsize property.  However the ApplicationMaster actual...
http://issues.apache.org/jira/browse/MAPREDUCE-4871    Author: Jason Lowe, 2013-03-01, 14:04
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