HADOOP-8748. Refactor DFSClient retry utility methods to a new class in org.apache.hadoop.io.retry.  Contributed by Arun C Murthy.


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Revert MAPREDUCE-4488 and MAPREDUCE-4567.

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HDFS-3466. Get HTTP kerberos principal from the web authentication keytab.
(omalley)


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HDFS-3871. Change NameNodeProxies to use RetryUtils.  Contributed by Arun C Murthy


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MAPREDUCE-4629. Remove JobHistory.DEBUG_MODE (Karthik Kambatla via bobby)


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HADOOP-8745. Incorrect version numbers in hadoop-core POM. Contributed by Matthias Friedrich


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HDFS-2757. Cannot read a local block that's being written to when using the local read short circuit. Contributed by Jean-Daniel Cryans


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HADOOP-8781. hadoop-config.sh should add JAVA_LIBRARY_PATH to LD_LIBRARY_PATH. (tucu)

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MAPREDUCE-4576. Large dist cache can block tasktracker heartbeat (Robert Evans via tgraves).

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HADOOP-8767. Secondary namenode is started on slave nodes instead of master nodes. Contributed by Giovanni Delussu.

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Moved some of the jiras that have been merged into 1.1.0 to the relevant section from 1.2.0 section in CHANGES.txt

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Update to a changes description to format is correctly.

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HDFS-3703. Datanodes are marked stale if heartbeat is not received in configured timeout and are selected as the last location to read from.  Contributed by Jing Zhao


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Revert HDFS-3703 since the new test (testReadSelectNonStaleDatanode) fails.


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HDFS-3703. Datanodes are marked stale if heartbeat is not received in configured timeout and are selected as the last location to read from.  Contributed by Jing Zhao


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HADOOP-8819. Incorrectly & is used instead of && in some file system implementations. Contributed by Brandon Li.

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HADOOP-7688. When a servlet filter throws an exception in init(..), the Jetty server failed silently. Contributed by Uma Maheswara Rao G.



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HADOOP-8786. HttpServer continues to start even if AuthenticationFilter fails to init. Contributed by Todd Lipcon.



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HDFS-3961. FSEditLog preallocate() preallocated more than 1MB. Contributed by Jing Zhoa.

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Moving HDFS-3961 change from release 1.1 to 1.2

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