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HDFS-8842
Catch throwableHDFS-7252
small refinement to the use of isInAnEZ in FSNamesystem
Introduce a string constant for "Failed to obtain user group info..."
Fix findbugs "unchecked conversion" warning in DFSClient#getPathTraceScope
Fix findbugs "inefficient new String constructor" warning in DFSClient#PATH
Bump DataNode OOM log from WARN to ERROR
Fix the order of the parameters in DFSConfigKeys
Fix typo in message of ReplicaNotFoundException
various typos and message formatting fixes in nfs daemon and doc
minor typo in HttpFS doc
Replace check "port number < 1024" with shared isPrivilegedPort method
Catch throwable return null
xlator should be closed upon exit from DFSAdmin#genericRefresh()
Add the time of last HA state transition to NN's /jmx page
TestOpenFilesWithSnapshot fails periodically with test timeout
HDFS Peercache enabled check should not lock on object
Document the "hadoop trace" command.
Tracing span description of IPC client is too longHDFS-7222
Expose DataNode network errors as a metric
Code improvement for FSN#checkUnreadableBySuperuser
Fix findbugs warning about NP_DEREFERENCE_OF_READLINE_VALUE in SpanReceiverHost
Should be able to omit package name of SpanReceiver on "hadoop trace -add"
Fix findbug in TransferFsImage.java
Fix spacing for a few keys in DFSConfigKeys.java
Remove dependency on old version of Guava in TestDFSClientCache#testEviction
Document, and set an accepting default for dfs.namenode.kerberos.principal.pattern
Improve log reporting during block report rpc failure
Fix the new findbugs warning from TransferFsImage
Use file to replace data dirs in test to simulate a disk failure.
TestFileTruncate#testTruncateWithDataNodesRestart runs timeout sometimes
Remove duplicated logs in BlockManager
Refactor the checking the minimum replication logic in BlockManager
Fix intermittent test failures in TestTracingHDFS-8038
PBImageDelimitedTextWriter#getEntry output HDFS path in platform-specific format.
Remove obsolete -ns options in in DFSHAAdmin.java
Show warning if not all favored nodes were chosen by namenode
Wrong command mentioned in HDFSHighAvailabilityWithQJM documentation
Remove unnecessary synchronized in FSDataInputStream and HdfsDataInputStream
Do not create optional fields in DFSInputStream unless they are needed
cleanup unnecssary code logic in LocatedBlock
Document truncate for WebHDFS.
Update use of Iterator to Iterable in DataXceiverServer and SnapshotDiffInfo
Switch blockStateChangeLog to use slf4j
Remove dead code in BackupImage.java
Remove updatePosition argument from DFSInputStream#getBlockAt()
Checking of closed in DFSInputStream#pread() should be protected by synchronization
Log at INFO level, not WARN level, when InvalidToken is seen in ShortCircuitCache
Add incremental blockreport latency to DN metrics
Allow renaming of encryption zone roots
HDFS-7448
TestBookKeeperHACheckpoints fails in trunk build