2.1. Patch information for Hadoop

Hadoop is based on Apache Hadoop 1.1.2 and includes the following additional patches:

HDFS-4122: Reduced the size of log messages.
HADOOP-8832: Added generic service plugin mechanism from HADOOP-5257 to branch-1.
MAPREDUCE-461: Enabled service-plugins for JobTracker.
MAPREDUCE-4838: Added locality, avataar, and workflow information to JobHistory.
MAPREDUCE-4837: Added web-service APIs for JobTracker. These APIs can be used to get information on jobs and component tasks.
BUG FIXES:
- HDFS-4219: Added slive to branch-1.
- HDFS-4180: Updated TestFileCreation for HDFS-4122
- MAPREDUCE-4478: Fixed issue with TaskTracker's heartbeat.
- HDFS-4108: Fixed dfsnodelist to work in secure mode.
- HADOOP-8923: Fixed incorect rendering of the intermediate web user interface page caused when the authentication cookie (SPENGO/custom) expires.
- HADOOP-8164: Added support to handle paths using backslash character as a path separator (for Windows platform only).
HADOOP-9051: Fixed build failure issues for ant test.
HADOOP-9036: Fixed racy test case TestSinkQueue.
MAPREDUCE-4916: Fixed TestTrackerDistributedCacheManager.
HADOOP-7836: Fixed failures for TestSaslRPC#testDigestAuthMethodHostBasedToken when hostname is set to localhost.localdomain .
HDFS-3402: Fixed HDFS scripts for secure DataNodes.
HADOOP-9296: Added support to allow users from different realm to authenticate without a trust relationship.
MAPREDUCE-4434: Fixed JobSplitWriter.java to handle large job.split file.
HDFS-4222: Fixed NameNode issue that caused the NameNode to become unresponsive and resulting in lost heartbeats from DNs when configured to use LDAP.
HDFS-3515: Port HDFS-1457 to branch-1.
MAPREDUCE-4843: Fixed JobLocalizer when using DefaultTaskController.
MAPREDUCE-2217: Expire launching task now covers the UNASSIGNED task.

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