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[MAPREDUCE-5090] TotalOrderPartitioner does not recognize total.order.partitioner.* settings - MapReduce - [issue]
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...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...
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http://issues.apache.org/jira/browse/MAPREDUCE-5090
Author: Jason Lowe,
2013-03-21, 22:19
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[MAPREDUCE-4784] TestRecovery occasionally fails - MapReduce - [issue]
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...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...
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http://issues.apache.org/jira/browse/MAPREDUCE-4784
Author: Jason Lowe,
2013-03-20, 01:39
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[MAPREDUCE-5003] AM recovery should recreate records for attempts that were incomplete - MapReduce - [issue]
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...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...
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http://issues.apache.org/jira/browse/MAPREDUCE-5003
Author: Jason Lowe,
2013-03-18, 19:54
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[MAPREDUCE-5042] Reducer unable to fetch for a map task that was recovered - MapReduce - [issue]
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...If an application attempt fails and is relaunched the AM will try to recover previously completed tasks. If a reducer needs to fetch the output of a map task attempt that was recovered...
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http://issues.apache.org/jira/browse/MAPREDUCE-5042
Author: Jason Lowe,
2013-03-16, 14:05
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[MAPREDUCE-4993] AM thinks it was killed when an error occurs setting up a task container launch context - MapReduce - [issue]
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...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 ...
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http://issues.apache.org/jira/browse/MAPREDUCE-4993
Author: Jason Lowe,
2013-03-07, 15:30
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[MAPREDUCE-5027] Shuffle does not limit number of outstanding connections - MapReduce - [issue]
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...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...
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http://issues.apache.org/jira/browse/MAPREDUCE-5027
Author: Jason Lowe,
2013-03-06, 14:04
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[MAPREDUCE-4842] Shuffle race can hang reducer - MapReduce - [issue]
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...Saw an instance where the shuffle caused multiple reducers in a job to hang. It looked similar to the problem described in MAPREDUCE-3721, where the fetchers were all being told to WAI...
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http://issues.apache.org/jira/browse/MAPREDUCE-4842
Author: Jason Lowe,
2013-03-06, 02:14
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[MAPREDUCE-5044] Have AM trigger jstack on task attempts that timeout before killing them - MapReduce - [issue]
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...When an AM expires a task attempt it would be nice if it triggered a jstack output via SIGQUIT before killing the task attempt. This would be invaluable for helping users debug their h...
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http://issues.apache.org/jira/browse/MAPREDUCE-5044
Author: Jason Lowe,
2013-03-02, 18:12
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[MAPREDUCE-4794] DefaultSpeculator generates error messages on normal shutdown - MapReduce - [issue]
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...DefaultSpeculator can log the following error message on a normal shutdown of the ApplicationMaster:2012-11-13 01:35:31,841 ERROR [DefaultSpeculator background processing] org.apache.hadoop....
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http://issues.apache.org/jira/browse/MAPREDUCE-4794
Author: Jason Lowe,
2013-03-02, 14:05
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[MAPREDUCE-4871] AM uses mapreduce.jobtracker.split.metainfo.maxsize but mapred-default has mapreduce.job.split.metainfo.maxsize - MapReduce - [issue]
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...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...
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http://issues.apache.org/jira/browse/MAPREDUCE-4871
Author: Jason Lowe,
2013-03-01, 14:04
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