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[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
[MAPREDUCE-5037] JobControl logging when a job completes - MapReduce - [issue]
...JobControl emits logs, via the logging in Job.submit(), whenever a job is launched.  It would be nice if it also logged when active jobs it is tracking complete and their final status (...
http://issues.apache.org/jira/browse/MAPREDUCE-5037    Author: Jason Lowe, 2013-02-28, 17:07
[MAPREDUCE-4831] Task commit can occur more than once due to AM retries - MapReduce - [issue]
...If a task attempt begins committing but the AM crashes before the task attempt completes then we could end up having the task commit again when the AM is relaunched.  The subsequent AM ...
http://issues.apache.org/jira/browse/MAPREDUCE-4831    Author: Jason Lowe, 2013-02-27, 23:38
[MAPREDUCE-5000] TaskImpl.getCounters() can return the counters for the wrong task attempt when task is speculating - MapReduce - [issue]
...When a task is speculating and one attempt completes then sometimes the counters for the wrong attempt are aggregated into the total counters for the job.  The scenario looks like this:...
http://issues.apache.org/jira/browse/MAPREDUCE-5000    Author: Jason Lowe, 2013-02-14, 14:05
[MAPREDUCE-4982] AM hung with one pending map task - MapReduce - [issue]
...Saw a job that hung with one pending map task that never ran.  The task was in the SCHEDULED state with a single attempt that was in the UNASSIGNED state.  The AM looked like it wa...
http://issues.apache.org/jira/browse/MAPREDUCE-4982    Author: Jason Lowe, 2013-02-13, 02:00
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