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HDFS-7644
minor typo in HttpFS docHDFS-7732
Fix the order of the parameters in DFSConfigKeys
small refinement to the use of isInAnEZ in FSNamesystem
Replace check "port number < 1024" with shared isPrivilegedPort method
Fix findbugs "inefficient new String constructor" warning in DFSClient#PATH
Bump DataNode OOM log from WARN to ERROR
Fix findbugs "unchecked conversion" warning in DFSClient#getPathTraceScope
Catch throwable
Introduce a string constant for "Failed to obtain user group info..."
Fix typo in message of ReplicaNotFoundException
various typos and message formatting fixes in nfs daemon and docHDFS-8038
PBImageDelimitedTextWriter#getEntry output HDFS path in platform-specific format.
Switch blockStateChangeLog to use slf4j
Remove dead code in BackupImage.java
Update archival storage user doc for list/set/get block storage policies
Improve log reporting during block report rpc failure
Switch BlockManager logging to use slf4j
Remove dependency on old version of Guava in TestDFSClientCache#testEviction
Fix the check condition for reserved path
BlockReceiver#close() might be called multiple times, which causes the fsvolume reference being released incorrectly.
Fix findbug in TransferFsImage.java
HDFS Peercache enabled check should not lock on object
Add the time of last HA state transition to NN's /jmx page
Code improvement for FSN#checkUnreadableBySuperuser
Remove updatePosition argument from DFSInputStream#getBlockAt()
Checking of closed in DFSInputStream#pread() should be protected by synchronization
Add incremental blockreport latency to DN metrics
Log at INFO level, not WARN level, when InvalidToken is seen in ShortCircuitCache
Add Datanode network counts to datanode jmx page
Add documentation for hdfs debug commands
TestCheckpoint#testStorageAlreadyLockedErrorMessage fails after change of log message related to locking violation.
Document the "hadoop trace" command.
Fix findbugs warning about NP_DEREFERENCE_OF_READLINE_VALUE in SpanReceiverHost
Tracing span description of IPC client is too longHDFS-7222
Expose DataNode network errors as a metric
TestOpenFilesWithSnapshot fails periodically with test timeout
Should be able to omit package name of SpanReceiver on "hadoop trace -add"
Catch throwable return null
PacketReceiver populates the packetLen field in PacketHeader incorrectly
Allow renaming of encryption zone roots
Add ACL indicator to the "Permission Denied" exception.
HDFS-7448
TestBookKeeperHACheckpoints fails in trunk build
Document, and set an accepting default for dfs.namenode.kerberos.principal.pattern
Remove TestCorruptFilesJsp from branch-2.
Fix spacing for a few keys in DFSConfigKeys.java
Fix the new findbugs warning from TransferFsImage
Allow dead nodes to finish decommissioning if all files are fully replicated
Show warning if not all favored nodes were chosen by namenode
cleanup unnecssary code logic in LocatedBlock
Document truncate for WebHDFS.