HADOOP-10872. TestPathData fails intermittently with 'Mkdirs failed to create d1'. (Contributed by Yongjun Zhang

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1612895 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-10830. Missing lock in JavaKeyStoreProvider.createCredentialEntry. Contributed by Benoy Antony.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1612904 13f79535-47bb-0310-9956-ffa450edef68
Moved CHANGES.txt entry for HADOOP-10830 to 2.6 section

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1612912 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-10890. TestDFVariations.testMount fails intermittently. (Contributed by Yongjun Zhang)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1612916 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6422. getfattr in CLI doesn't throw exception or return non-0 return code when xattr doesn't exist. (Charles Lamb via umamahesh)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1612922 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6114. Block Scan log rolling will never happen if blocks written continuously leading to huge size of dncp_block_verification.log.curr (vinayakumarb via cmccabe)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1612943 13f79535-47bb-0310-9956-ffa450edef68