Summary

Description

The code that runs in the child task process.

Issues: Unresolved

Key Summary Due Date
Bug MAPREDUCE-6214 MultipleOutputs output folders are not deleted when a task fails
Bug MAPREDUCE-956 Shuffle should be broken down to only two phases (copy/reduce) instead of three (copy/sort/reduce)
Improvement MAPREDUCE-1046 Remove mapred.{map|reduce}.child.ulimit and use mapred.job.{map|reduce}.memory.mb as the task's ulimit value

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Issues: Updated recently

Key Summary Updated
Improvement MAPREDUCE-5962 Support CRC32C in IFile
Bug MAPREDUCE-6400 Multiple shuffle transfer fails because input is closed too early
Bug MAPREDUCE-1700 User supplied dependencies may conflict with MapReduce system JARs

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Versions: Unreleased

Name Release date
Unreleased 0.20.204.0
Unreleased 3.0.0  
Unreleased MR-3902  
Unreleased MR-2454  
Unreleased 1.3.0  
Unreleased 2.4.0
Unreleased fs-encryption  
Unreleased 2.6.1  
Unreleased 2.8.0  
Unreleased 2.7.1  
Unreleased YARN-2928  
Unreleased 2.7.2  

...and 7 more

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