Task.TaskReporter.done method blocked for some time when task is finishing
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Key: MAPREDUCE-3612
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3612
Project: Hadoop Map/Red
Support no sort dataflow in map output and reduce merge phrase
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Key: MAPREDUCE-3397
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3397
Project: Hadoop Map/Reduce
Issue Type
Duplicate job.getOutputValueGroupingComparator() in ReduceTask
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Key: MAPREDUCE-3383
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3383
Project: Hadoop Map/Reduce
Issue Type
Add hash aggregation style data flow and/or new API
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Key: MAPREDUCE-3247
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3247
Project: Hadoop Map/Reduce
Issue Type: New Feature
Make Task extensible to support modifications of Task or even alternate
programming paradigms
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Key: MAPREDUCE-3246
URL: https://issues.apache.org/jira/browse/MAPREDUCE-32