MAPREDUCE-2767. Remove Linux task-controller from 0.22 branch. Contributed by Milind Bhandarkar.

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HDFS-2315. Fix build-contrib to work with ant older than 1.8. Contributed by Joep Rottinghuis.

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reverting to provide proper comments

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HDFS-2281. NPE in checkpoint during processIOError(). Contributed by Uma Maheswara Rao G.

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HDFS-2280. BackupNode fails with MD5 checksum Exception. Contributed by Konstantin Shvachko.

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MAPREDUCE-2948. Hadoop streaming test failure, post MR-2767 (mahadev)

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MAPREDUCE-2940. Build fails with ant 1.7.0 but works with 1.8.0. Contributed by Joep Rottinghuis.

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HDFS-2285. BackupNode should reject requests to modify namespace. Contributed by Konstantin Shvachko.

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HADOOP-7568. SequenceFile should not print into stdout. Contributed by Plamen Jeliazkov.

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MAPREDUCE-2991. queueinfo.jsp fails if queue names contain special symbols. Contributed by Priyo Mustafi.

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HDFS-2271. startJournalSpool should invoke processIOError. Contributed by Uma Maheswara Rao G.

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MAPREDUCE-3025. Contribs not building. Contributed by Joep Rottinghuis.

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HDFS-2341. Contribs not building. Contributed by Joep Rottinghuis.

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Revert HDFS-2341.

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HDFS-2341. Contribs not building new patch. Contributed by Joep Rottinghuis.

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HDFS-2290. Block with corrupt replica is not getting replicated. Contributed by Benoy Antony.

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HADOOP-7663. Fix TestHDFSTrash failure. Contributed by Mayank Bansal.

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HADOOP-7457. Remove out-of-date Chinese language documentation. Contributed by Jakob Homan

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HADOOP-7457. build.xml correction.

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