MAPREDUCE-4974. Optimising the LineRecordReader initialize() method (Gelesh via bobby)


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YARN-444. Moved special container exit codes from YarnConfiguration to API where they belong. Contributed by Sandy Ryza.
MAPREDUCE-5151. Updated MR AM to use standard exit codes from the API after YARN-444. Contributed by Sandy Ryza.


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HDFS-4693. Some test cases in TestCheckpoint do not clean up after themselves. Contributed by Arpit Agarwal and Suresh.

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MAPREDUCE-5015. Coverage fix for org.apache.hadoop.mapreduce.tools.CLI (Aleksey Gorshkov via tgraves)

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MAPREDUCE-5065. DistCp should skip checksum comparisons if block-sizes are different on source/target. Contributed by Mithun Radhakrishnan.

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Fix HADOOP-9467 attribution.

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YARN-500. Fixed YARN webapps to not roll-over ports when explicitly asked to use non-ephemeral ports. Contributed by Kenji Kikushima.


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