svn merge -c 1455740 FIXES: MAPREDUCE-5060. Fetch failures that time out only count against the first map task. Contributed by Robert Joseph Evans


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1455742 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4013. Merge r1455754 from trunk.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1455756 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9399. protoc maven plugin doesn't work on mvn 3.0.2. Contributed by Todd Lipcon.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1455772 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4592. Default values for access time precision are out of sync between hdfs-default.xml and the code. Contributed by Aaron T. Myers.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1455778 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4522. LightWeightGSet expects incrementing a volatile to be atomic. Contributed by Colin Patrick McCabe.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1455781 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4484. libwebhdfs compilation broken with gcc 4.6.2. Contributed by Colin Patrick McCabe.


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