HDFS-4037. Rename the getReplication() method in BlockCollection to getBlockReplication(). 


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1398288 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4036. Remove "throw UnresolvedLinkException" from FSDirectory.unprotectedAddFile(..).  Contributed by Jing Zhao 


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1398293 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-8901. GZip and Snappy support may not work without unversioned libraries. Contributed by Colin Patrick McCabe.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1398416 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4049. Fix hflush performance regression due to nagling delays. Contributed by Todd Lipcon.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1398591 13f79535-47bb-0310-9956-ffa450edef68
Update CHANGES.txt to have HDFS-3678 under release 2.0.3 instead of 3.0.0.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1398603 13f79535-47bb-0310-9956-ffa450edef68
HDFS-2946. HA: Put a cap on the number of completed edits files retained by the NN. Contributed by Aaron T. Myers.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1398609 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4058. DirectoryScanner may fail with IOOB if the directory scanning threads return out of volume order. Contributed by Eli Collins


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1398612 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4052. BlockManager#invalidateWork should print log outside the lock. Contributed by Jing Zhao.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1398631 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-8920. Add more javadoc to metrics2 related classes. Contributed by Suresh Srinivas.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1398640 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-8929. Add toString, other improvements for SampleQuantiles. Contributed by Todd Lipcon.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1398658 13f79535-47bb-0310-9956-ffa450edef68
HDFS-3985. Add timeouts to TestMulitipleNNDataBlockScanner. Contributed by Todd Lipcon


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1398874 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-8923. JNI-based user-group mapping modules can be too chatty on lookup failures. Contributed by Kihwal Lee.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1398883 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-8883. Anonymous fallback in KerberosAuthenticator is broken. (rkanter via tucu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1398895 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-8922. Provide alternate JSONP output for JMXJsonServlet to allow javascript in browser dashboard (Damien Hardy via bobby)


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1398904 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4059. Add number of stale DataNodes to metrics. Contributed by Jing Zhao.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1398949 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-8931. Add Java version to startup message. Contributed by Eli Collins


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1398998 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-8926. hadoop.util.PureJavaCrc32 cache hit-ratio is low for static data (Gopal V via bobby)


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1399005 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4061. TestBalancer and TestUnderReplicatedBlocks need timeouts. Contributed by Eli Collins


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1399010 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-4521. mapreduce.user.classpath.first incompatibility with 0.20/1.x (Ravi Prakash via bobby)


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1399011 13f79535-47bb-0310-9956-ffa450edef68
YARN-161. Fix multiple compiler warnings for unchecked operations in YARN common. Contributed by Chris Nauroth.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1399056 13f79535-47bb-0310-9956-ffa450edef68