MAPREDUCE-6024. Shortened the time when Fetcher is stuck in retrying before concluding the failure by configuration. Contributed by Yunjiong Zhao.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1618677 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6561. org.apache.hadoop.util.DataChecksum should support native checksumming (James Thomas via Colin Patrick McCabe)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1618680 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-10973. Native Libraries Guide contains format error. (Contributed by Peter Klavins)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1618682 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6825. Edit log corruption due to delayed block removal. Contributed by Yongjun Zhang.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1618684 13f79535-47bb-0310-9956-ffa450edef68
Update CHANGES.txt for HDFS-6561 which was renamed to HADOOP-10975.

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