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


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Update to a changes description to format is correctly.

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svn merge -c 1384742 from branch-1 for HDFS-3703. Datanodes are marked stale if heartbeat is not received in configured timeout and are selected as the last location to read from.


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HDFS-3617. Port HDFS-96 to branch-1 (support blocks greater than 2GB). Contributed by Patrick Kling and Harsh J.

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release notes for Hadoop-1.1.0-rc4

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HDFS-3596. Improve FSEditLog pre-allocation in branch-1. Contributed by Colin Patrick McCabe, backported by Jing Zhao.

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HDFS-3966. Merging change 1388722 from branch-1

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HDFS-3698. Merge change r1364697 from branch-1 to fix TestHftpFileSystem failure.

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Fix the length of the secret key.


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MAPREDUCE-4673. Fix TestRawHistoryFile and TestJobHistoryServer to not write to /tmp. Contributed by Arpit Gupta.
svn merge --ignore-ancestry -c  1389528 ../branch-1


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MAPREDUCE-4675. Fixed a race condition caused in TestKillSubProcesses caused due to a recent commit. Contributed by Bikas Saha.
svn merge --ignore-ancestry -c 1389638 ../branch-1


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Merge -c 1368724 from branch-1 to branch-1 to fix MAPREDUCE-3289. Make use of fadvise in the NM's shuffle handler.

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Merge -c 1373672 from branch-1 to branch-1 to fix MAPREDUCE-4511. Add IFile readahead.

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Merge -c 1366285 from branch-1 to branch-1.1 to fix MAPREDUCE-1906. Lower minimum heartbeat interval between tasktracker and JobTracker for smaller clusters.

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Merge -c 1356904 from branch-1 to branch-1.1 to fix MAPREDUCE-3837. Job tracker is not able to recover job in case of crash and after that no user can submit job.

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Merge -c 1374095 from branch-1 to branch-1.1 to fix MAPREDUCE-4558. Disable TestJobTrackerSafeMode.

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Merge -c 1377714 from branch-1 to branch-1.1 to fix MAPREDUCE-4328. Add a JobTracker safemode to allow it to be resilient to NameNode failures.

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Merge -c 1365591 from branch-1 to branch-1.1 to fix HADOOP-8617. Backport HADOOP-6148, HADOOP-6166 and HADOOP-7333 for a pure Java CRC32 calculator implementation.

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Merge -c 1365881 from branch-1 to branch-1.1 to fix HDFS-496. Backport: Use PureJavaCrc32 in HDFS.

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Merge -c 1366280 from branch-1 to branch-1.1 to fix MAPREDUCE-782. Use PureJavaCrc32 in mapreduce spills.

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