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[MAPREDUCE-5202] Revert MAPREDUCE-4397 to avoid using incorrect config files - MapReduce - [issue]
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...MAPREDUCE-4397 added the capability to switch the location of the taskcontroller.cfg file, which weakens security....
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http://issues.apache.org/jira/browse/MAPREDUCE-5202
Author: Owen O'Malley,
2013-05-06, 05:24
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Re: Release numbering for branch-2 releases - MapReduce - [mail # dev]
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...I think that using "-(alpha,beta)" tags on the release versions is a really bad idea. All releases should follow the strictly numeric (Major.Minor.Patch) pattern that we've used for all of t...
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Author: Owen O'Malley,
2013-02-04, 21:07
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[MAPREDUCE-2355] Add an out of band heartbeat damper - MapReduce - [issue]
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...We should have a configurable knob to throttle how many out of band heartbeats are sent....
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http://issues.apache.org/jira/browse/MAPREDUCE-2355
Author: Owen O'Malley,
2012-11-30, 19:53
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[MAPREDUCE-3773] Add queue metrics with buckets for job run times - MapReduce - [issue]
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...It would be nice to have queue metrics that reflect the number of jobs in each queue that have been running for different ranges of time.Reasonable time ranges are probably 0-1 hr, 1-5 hr, 5...
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http://issues.apache.org/jira/browse/MAPREDUCE-3773
Author: Owen O'Malley,
2012-10-22, 19:47
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[MAPREDUCE-4232] Make the distributed cache tests easier to diagnose - MapReduce - [issue]
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...We currently require that the test environment: Have umask of 0022. Have a world readable basedir (including parents)It would be good to check for those before bothering to run tests....
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http://issues.apache.org/jira/browse/MAPREDUCE-4232
Author: Owen O'Malley,
2012-10-18, 10:03
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[MAPREDUCE-4601] Windows CMD processor doesn't use double quotes - MapReduce - [issue]
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...Currently, the task launch script under windows matches Linux and double quotes all of the values. Unfortunately, the Windows' CMD processor doesn't need and doesn't ignore the double quotes...
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http://issues.apache.org/jira/browse/MAPREDUCE-4601
Author: Owen O'Malley,
2012-08-28, 23:07
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[MAPREDUCE-4505] Create a combiner bypass path for keys with a single value - MapReduce - [issue]
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...It would help optimize a lot of cases where there aren't a lot of replicated keys if the framework would bypass the deserialize/combiner/serialize step for keys that only have a single value...
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http://issues.apache.org/jira/browse/MAPREDUCE-4505
Author: Owen O'Malley,
2012-08-01, 19:07
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Re: output/input ratio > 1 for map tasks? - MapReduce - [mail # user]
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...On Mon, Jul 30, 2012 at 11:47 AM, brisk wrote: The traditional case is building an inverted index of some sort. Your input is the input documents, the shuffle is the set of sear...
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Author: Owen O'Malley,
2012-07-30, 21:57
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[MAPREDUCE-318] Refactor reduce shuffle code - MapReduce - [issue]
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...The reduce shuffle code has become very complex and entangled. I think we should move it out of ReduceTask and into a separate package (org.apache.hadoop.mapred.task.reduce). Details to foll...
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http://issues.apache.org/jira/browse/MAPREDUCE-318
Author: Owen O'Malley,
2012-07-29, 21:55
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[MAPREDUCE-463] The job setup and cleanup tasks should be optional - MapReduce - [issue]
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...For jobs that require low latency and do not require setup or cleanup tasks for the job, it should be possible to turn them off for that job....
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http://issues.apache.org/jira/browse/MAPREDUCE-463
Author: Owen O'Malley,
2012-07-28, 00:36
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