Summary

Description

Tag for performance-related improvements/optimizations

Issues: Unresolved

Key Summary Due Date
Bug MAPREDUCE-5908 java.lang.NoSuchMethodError: org.apache.commons.io.IOUtils.closeQuietly(Ljava/io/Closeable;)V
Improvement MAPREDUCE-3235 Improve CPU cache behavior in map side sort
Bug MAPREDUCE-3561 [Umbrella ticket] Performance issues in YARN+MR

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Issues: Updated recently

Key Summary Updated
Improvement MAPREDUCE-4274 MapOutputBuffer should use native byte order for kvmeta
Improvement MAPREDUCE-4974 Optimising the LineRecordReader initialize() method
Improvement MAPREDUCE-4126 This is a fix both for oracle support and managing DB splits in general.

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Versions: Unreleased

Name Release date
Unreleased 0.20.204.0  
Unreleased 0.20.204.1  
Unreleased 0.22.1  
Unreleased 0.23.2  
Unreleased 3.0.0  
Unreleased 1-win  
Unreleased MR-3902  
Unreleased trunk-win  
Unreleased MR-2454  
Unreleased 1.1.3  
Unreleased 1.3.0  
Unreleased 1.2.2  
Unreleased 2.4.0  
Unreleased fs-encryption  
Unreleased 2.7.0  
Unreleased 2.6.1  
Unreleased 2.8.0  

...and 12 more

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