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4559 Commits

Author SHA1 Message Date
Brahma Reddy Battula 8bfb9971ca HADOOP-14455. ViewFileSystem#rename should support be supported within same nameservice with different mountpoints. Contributed by Brahma Reddy Battula. 2017-07-30 14:01:41 +08:00
Yongjun Zhang c3e8c7d56e HDFS-12190. Enable 'hdfs dfs -stat' to display access time. Contributed by Yongjun Zhang. 
(cherry picked from commit c6330f22a5)
 2017-07-27 17:05:30 -07:00
Brahma Reddy Battula 1c5095b3cb HDFS-11896. Non-dfsUsed will be doubled on dead node re-registration. Contributed by Brahma Reddy Battula. 
(cherry picked from commit c4a85c694f)
 2017-07-27 12:30:57 -07:00
Kihwal Lee 3d8c7d701b HDFS-12171. Reduce IIP object allocations for inode lookup. Contributed by Daryn Sharp. 2017-07-25 11:07:43 -05:00
Kihwal Lee 9fe5dd098d HDFS-12143. Improve performance of getting and removing inode features. Contributed by Daryn Sharp. 
(cherry picked from commit 1a79dcfc45)
 2017-07-25 10:30:27 -05:00
Akira Ajisaka c108372777
HDFS-12176. dfsadmin shows DFS Used%: NaN% if the cluster has zero block. Contributed by Weiwei Yang. 
(cherry picked from commit 770cc46228)
 2017-07-24 16:24:50 +09:00
Kihwal Lee c12bf9a128 HDFS-11742. Improve balancer usability after HDFS-8818. Contributed by Kihwal Lee 
(cherry picked from commit 8e3a992ecc)
 2017-07-21 09:19:01 -05:00
Konstantin V Shvachko af2fb6a909 HDFS-11472. Fix inconsistent replica size after a data pipeline failure. Contributed by Erik Krogen and Wei-Chiu Chuang. 
(cherry picked from commit 2a5a313539)
 2017-07-20 15:57:34 -07:00
Anu Engineer e0297ffbc8 HDFS-12158. Secondary Namenode's web interface lack configs for X-FRAME-OPTIONS protection. Contributed by Mukul Kumar Singh. 
(cherry picked from commit 413b23eb04)
 2017-07-19 10:42:28 -07:00
Brahma Reddy Battula 979d37ae21 HDFS-12067. Correct dfsadmin commands usage message to reflects IPC port. Contributed by steven-wugang. 
(cherry picked from commit f8cd55fe33)
 2017-07-19 23:22:40 +08:00
Tsz-Wo Nicholas Sze 02627f8c5f HDFS-12138. Remove redundant 'public' modifiers from BlockCollection. Contributed by Chen Liang 2017-07-17 13:59:52 -07:00
Brahma Reddy Battula a33e89931b HDFS-12112. TestBlockManager#testBlockManagerMachinesArray sometimes fails with NPE. Contributed by Wei-Chiu Chuang. 
(cherry picked from commit b778887af5)
 2017-07-15 10:49:11 +08:00
Xiao Chen 5337c2511d HADOOP-14521. KMS client needs retry logic. Contributed by Rushabh S Shah. 
(cherry picked from commit aa395c1ec9a170f2da732c6e6114c60412161d40)
 2017-07-14 22:23:07 -07:00
Tsz-Wo Nicholas Sze bff39ca718 HDFS-12130. Optimizing permission check for getContentSummary. Contributed by Chen Liang 2017-07-14 14:40:11 -07:00
Tsz-Wo Nicholas Sze d51395363a Revert "HDFS-12130. Optimizing permission check for getContentSummary." to fix commit message. 
This reverts commit 2ba41729ab.
 2017-07-14 14:38:27 -07:00
Kihwal Lee 0fd86de128 HDFS-12140. Remove BPOfferService lock contention to get block pool id. Contributed by Daryn Sharp. 
(cherry picked from commit e7d187a1b6)
 2017-07-14 16:12:28 -05:00
Kihwal Lee a47820d72a HDFS-12137. DN dataset lock should be fair. Contributed by Daryn Sharp. 2017-07-14 15:45:26 -05:00
Tsz-Wo Nicholas Sze 2ba41729ab HDFS-12130. Optimizing permission check for getContentSummary. 2017-07-14 13:42:02 -07:00
Xiaoyu Yao af8a227a68 HDFS-11502. Datanode UI should display hostname based on JMX bean instead of window.location.hostname. Contributed by Jeffrey E Rodriguez and Yuanbo Liu. 
(cherry picked from commit e15e2713e1)
 2017-07-12 16:38:56 -07:00
Akira Ajisaka 2653cf4466
HADOOP-14629. Improve exception checking in FileContext related JUnit tests. Contributed by Andras Bokor. 
(cherry picked from commit 9144fd9e9b)
 2017-07-12 11:40:48 +09:00
Akira Ajisaka 063f2132ef
HDFS-12078. Add time unit to the description of property dfs.namenode.stale.datanode.interval in hdfs-default.xml. Contributed by Weiwei Yang. 
(cherry picked from commit 186650d21d)
 2017-07-04 14:52:39 +09:00
Akira Ajisaka 003b4a1675
HDFS-12079. Description of dfs.block.invalidate.limit is incorrect in hdfs-default.xml. Contributed by Weiwei Yang. 
(cherry picked from commit b0560e0624)
 2017-07-04 14:03:07 +09:00
Wei-Chiu Chuang 94bc5cdbb3 HDFS-12042. Lazy initialize AbstractINodeDiffList#diffs for snapshots to reduce memory consumption. Contributed by Misha Dmitriev. 
(cherry picked from commit bcba844d11)
 2017-06-30 11:42:51 -07:00
Wei-Chiu Chuang 6917c19167 HDFS-11881. NameNode consumes a lot of memory for snapshot diff report generation. Contributed by Manoj Govindassamy. 
(cherry picked from commit 16c8dbde57)
 2017-06-29 06:40:24 -07:00
Akira Ajisaka a896c0f11e
HDFS-12040. TestFsDatasetImpl.testCleanShutdownOfVolume fails. Contributed by hu xiaodong. 
(cherry picked from commit 07defa4c09)
 2017-06-27 20:49:56 +09:00
Akira Ajisaka b59b96deee
HDFS-11992. Replace commons-logging APIs with slf4j in FsDatasetImpl. Contributed by hu xiaodong. 2017-06-27 03:28:09 +09:00
Kihwal Lee 8f533ca76b HDFS-11960. Successfully closed files can stay under-replicated. Contributed by Kihwal Lee. 2017-06-20 09:16:37 -05:00
Brahma Reddy Battula 933fad2e17 HADOOP-14533. Size of args cannot be less than zero in TraceAdmin#run as its linkedlist. Contributed by Weisen Han. 
(cherry picked from commit 2e9daa2e27)
 2017-06-20 20:45:33 +08:00
Akira Ajisaka 6b3c13d543
HDFS-11345. Document the configuration key for FSNamesystem lock fairness. Contributed by Erik Krogen. 
(cherry picked from commit 2c769167db)
 2017-06-20 16:36:47 +09:00
Akira Ajisaka 71626fd0b9
HDFS-11736. OIV tests should not write outside 'target' directory. Contributed by Yiqun Lin. 2017-06-20 13:55:42 +09:00
Masatake Iwasaki b19ca498ae HDFS-11995. HDFS Architecture documentation incorrectly describes writing to a local temporary file. Contributed by Nandakumar. 
(cherry picked from commit d954a64730)
 2017-06-20 08:09:09 +09:00
Andrew Wang 1ec1aebd35 HDFS-10480. Add an admin command to list currently open files. Contributed by Manoj Govindassamy. 2017-06-19 09:52:07 -07:00
Lei Xu 33afa1fdca HADOOP-14395. Provide Builder pattern for DistributedFileSystem.append. Contributed by Lei (Eddy) Xu. 
(cherry picked from commit 6460df21a0)

    Conflicts:
    hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DistributedFileSystem.java
 2017-06-16 17:32:29 -07:00
Arpit Agarwal 9529513f18 HADOOP-14503. Make RollingAverages a mutable metric. Contributed by Hanisha Koneru. 2017-06-16 16:41:08 -07:00
Lei Xu abac844c90 HADOOP-14394. Provide Builder pattern for DistributedFileSystem.create. (lei) 
(cherry picked from commit 5fbec46525d6d49837d934556b59ba77bd2301a8)

    Conflicts:
    hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DistributedFileSystem.java
    hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/balancer/NameNodeConnector.java
    hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDistributedFileSystem.java
    hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestErasureCodingPolicies.java
 2017-06-15 10:59:11 -07:00
Akira Ajisaka 0fd0612896
Revert "HDFS-11736. OIV tests should not write outside 'target' directory. Contributed by Yiqun Lin." 
This reverts commit 88fa17c238.
 2017-06-16 00:21:54 +09:00
Akira Ajisaka 88fa17c238
HDFS-11736. OIV tests should not write outside 'target' directory. Contributed by Yiqun Lin. 
(cherry picked from commit 315f07700d)
 2017-06-15 13:47:22 +09:00
Tsz-Wo Nicholas Sze 670224ae59 HDFS-11947. When constructing a thread name, BPOfferService may print a bogus warning message. Contributed by Weiwei Yang 2017-06-13 09:47:14 +08:00
Arpit Agarwal eda4bf5196 HDFS-11967. TestJMXGet fails occasionally. Contributed by Arpit Agarwal. 2017-06-12 16:04:08 -07:00
Arpit Agarwal 097b1f74e5 HDFS-11907. Add metric for time taken by NameNode resource check. Contributed by Chen Liang. 2017-06-12 15:22:36 -07:00
Mingliang Liu facb6812d9 HDFS-11945. Internal lease recovery may not be retried for a long time. Contributed by Kihwal Lee 2017-06-08 14:46:31 -07:00
Brahma Reddy Battula fca08f8362 HDFS-11711. DN should not delete the block On "Too many open files" Exception. Contributed by Brahma Reddy Battula. 2017-06-07 16:54:29 +08:00
Yiqun Lin 72f0fdfb59 HDFS-11929. Document missing processor of hdfs oiv_legacy command. Contributed by LiXin Ge. 
(cherry picked from commit 5ec71639cf)
 2017-06-07 13:44:33 +08:00
Vinayakumar B 9a26120809 HDFS-11708. Positional read will fail if replicas moved to different DNs after stream is opened. Contributed by Vinayakumar B. 2017-06-07 10:57:47 +05:30
Andrew Wang 5c819585f2 HDFS-11840. Log HDFS Mover exception message of exit to its own log. Contributed by LiXin Ge. 
(cherry picked from commit c31cb879a3)
 2017-06-06 14:57:51 -07:00
Arpit Agarwal 226688a12c HDFS-11932. BPServiceActor thread name is not correctly set. Contributed by Chen Liang. 2017-06-06 13:51:25 -07:00
Yongjun Zhang 1e52314117 HDFS-11914. Add more diagnosis info for fsimage transfer failure. Contributed by Yongjun Zhang. 
(cherry picked from commit 6a28a2b914)

Conflicts:
	hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/common/Util.java
 2017-06-06 12:31:11 -07:00
Kihwal Lee e2ea601231 HDFS-10816. TestComputeInvalidateWork#testDatanodeReRegistration fails due to race between test and replication monitor. Contributed by Eric Badger. 2017-06-05 15:24:54 -05:00
Arpit Agarwal baff06f019 HDFS-11928. Segment overflow in FileDistributionCalculator. Contributed by LiXin Ge. 2017-06-05 13:21:35 -07:00
Yiqun Lin 2e8557de12 HDFS-11899. ASF License warnings generated intermittently in trunk. Contributed by Yiqun Lin. 
(cherry picked from commit 367da9b7b8)
 2017-06-03 22:10:01 +08:00
Brahma Reddy Battula 8e119f1e90 HADOOP-14436. Remove the redundant colon in ViewFs.md. Contributed by maobaolong. 
(cherry picked from commit 056cc72885)
 2017-06-02 22:42:23 +08:00
Brahma Reddy Battula ac2af66e77 HDFS-11905. Fix license header inconsistency in hdfs. Contributed by Yeliang Cang. 2017-06-02 22:22:43 +08:00
Yiqun Lin 870b5e39d2 HDFS-11359. DFSAdmin report command supports displaying maintenance state datanodes. Contributed by Yiqun Lin. 2017-06-02 12:53:31 +08:00
Xiao Chen eb98773ac8 HDFS-11904. Reuse iip in unprotectedRemoveXAttrs calls. 
(cherry picked from commit 219f4c199e)

Conflicts:
	hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirErasureCodingOp.java
 2017-06-01 14:16:58 -07:00
Xiao Chen 91b72a8aa5 HDFS-11741. Long running balancer may fail due to expired DataEncryptionKey. Contributed by Wei-Chiu Chuang and Xiao Chen. 
(cherry picked from commit 068e23b896c63b0f817e6b91d73c994be1551eb2)

Conflicts:
	hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/security/token/block/BlockTokenSecretManager.java
 2017-06-01 14:05:43 -07:00
Brahma Reddy Battula 5cbdefbcc0 HDFS-11893. Fix TestDFSShell.testMoveWithTargetPortEmpty failure. Contributed by Brahma Reddy Battula. 
(cherry picked from commit 0dcf843c00)
 2017-06-01 22:39:22 +08:00
Kihwal Lee 212a566088 HDFS-11856. Ability to re-add Upgrading nodes to pipeline for future pipeline updates. Contributed by Vinayakumar B. 2017-05-31 12:45:33 -05:00
Kihwal Lee 5b0baeab5e HDFS-5042. Completed files lost after power failure. Contributed by Vinayakumar B. 2017-05-31 11:02:34 -05:00
Lei Xu a3ad1a39c5 HDFS-11659. TestDataNodeHotSwapVolumes.testRemoveVolumeBeingWritten fail due to no DataNode available for pipeline recovery. Contributed by Lei (Eddy) Xu. 
(cherry picked from commit 91d6fe151f)
 2017-05-30 11:11:00 -07:00
Yiqun Lin d36e64b8b2 HDFS-11446. TestMaintenanceState#testWithNNAndDNRestart fails intermittently. Contributed by Yiqun Lin. 
(cherry picked from commit 31058b243e)
 2017-05-28 11:27:09 +08:00
Inigo Goiri e336d92b99 Fix NPE in LazyPersistFileScrubber. Contributed by Inigo Goiri. 
(cherry picked from commit 303c8dc9b6)
 2017-05-26 13:40:16 -07:00
Xiao Chen 54971c4195 HDFS-11421. Make WebHDFS' ACLs RegEx configurable. Contributed by Harsh J. 2017-05-25 21:01:39 -07:00
Kihwal Lee 2cb63433ab HDFS-11817. A faulty node can cause a lease leak and NPE on accessing data. Contributed by Kihwal Lee. 2017-05-25 17:21:56 -05:00
Brahma Reddy Battula 7bad748091 HDFS-11445. FSCK shows overall health stauts as corrupt even one replica is corrupt. Contributed by Brahma Reddy Battula. 2017-05-25 22:38:12 +08:00
Yongjun Zhang 49dc547252 HADOOP-11794. Enable distcp to copy blocks in parallel. Contributed by Yongjun Zhang, Wei-Chiu Chuang, Xiao Chen, Rosie Li. 2017-05-24 18:54:51 -07:00
Yongjun Zhang 97317b1aaa Revert "HADOOP-11794. Enable distcp to copy blocks in parallel. Contributed by Yongjun Zhang, Wei-Chiu Chuang, Xiao Chen, Rosie Li." 
This reverts commit c411adac32.
 2017-05-24 18:54:51 -07:00
Wei-Chiu Chuang bd0138ea0a Revert "HDFS-10797. Disk usage summary of snapshots causes renamed blocks to get counted twice. Contributed by Sean Mackrory." 
This reverts commit 5c96ef365d.
 2017-05-24 18:08:30 -07:00
Wei-Chiu Chuang fe2c28df70 Revert "HDFS-11515. -du throws ConcurrentModificationException. Contributed by Istvan Fajth, Wei-Chiu Chuang." 
This reverts commit 4f1f16f1a6.
 2017-05-24 18:08:10 -07:00
Sunil G ec346d6377 YARN-6584. Correct license headers in hadoop-common, hdfs, yarn and mapreduce. Contributed by Yeliang Cang. 2017-05-23 07:57:36 +05:30
Brahma Reddy Battula ec2468ced1 HDFS-11849. JournalNode startup failure exception should be logged in log file. Contributed By Surendra Singh Lilhore. 
(cherry picked from commit 9cab42cc79)
 2017-05-23 02:40:11 +08:00
Arpit Agarwal 3db695d400 HDFS-11842. TestDataNodeOutlierDetectionViaMetrics UT fails intermittently. Controbuted by Hanisha Koneru. 2017-05-17 19:38:54 -07:00
Arpit Agarwal 0e95ff78c3 HDFS-11827. NPE is thrown when log level changed in BlockPlacementPolicyDefault#chooseRandom() method. Contributed by xupeng. 2017-05-16 19:51:17 -07:00
Kihwal Lee 82ea3f4545 HDFS-11641. Reduce cost of audit logging by using FileStatus instead of HdfsFileStatus. Contributed by Daryn Sharp. 2017-05-16 15:45:41 -05:00
Akira Ajisaka c17cb03a23
HDFS-11833. HDFS architecture documentation descibes outdated placement policy. Contributed by Chen Liang. 
(cherry picked from commit 1d1c52b42f)
 2017-05-16 11:53:55 -04:00
Andrew Wang 18b89e902b HDFS-11644. Support for querying outputstream capabilities. Contributed by Manoj Govindassamy. 2017-05-13 21:41:11 -07:00
Jason Lowe aeca471ec1 HDFS-11818. TestBlockManager.testSufficientlyReplBlocksUsesNewRack fails intermittently. Contributed by Nathan Roberts 2017-05-12 17:47:17 -05:00
Vinayakumar B 53d9f56a18 HDFS-11674. reserveSpaceForReplicas is not released if append request failed due to mirror down and replica recovered (Contributed by Vinayakumar B) 
(cherry picked from commit 1411612aa4)
 2017-05-12 07:44:11 +05:30
Kihwal Lee dfaaa14a47 HDFS-11755. Underconstruction blocks can be considered missing. Contributed by Nathan Roberts. 2017-05-10 14:20:26 -05:00
Jason Lowe 0a4021387f HDFS-11745. Increase HDFS test timeouts from 1 second to 10 seconds. Contributed by Eric Badger 
(cherry picked from commit fab73748a1)
 2017-05-10 13:03:33 -05:00
Kihwal Lee 0d9322aa5b HDFS-11702. Remove indefinite caching of key provider uri in DFSClient. Contributed by Rushabh S Shah. 
(cherry picked from commit cef2815cf4)
 2017-05-08 08:29:03 -05:00
Lei Xu 1f30a8a105 HDFS-11687. Add new public encryption APIs required by Hive. (lei) 
Change-Id: I4a23a00de63ad18022312ceb1f306a87d032d07c
(cherry picked from commit 25f5d9ad5e)
 2017-05-04 12:07:29 -07:00
Arpit Agarwal 89baea96d5 HDFS-11722. Change Datanode file IO profiling sampling to percentage. Contributed by Hanisha Koneru. 2017-05-03 16:30:01 -07:00
Arpit Agarwal 4b7d1ff326 Revert "HDFS-11488. JN log segment syncing should support HA upgrade. Contributed by Hanisha Koneru." 
This reverts commit dfc6ef42c4.
 2017-05-03 16:29:44 -07:00
Arpit Agarwal dfc6ef42c4 HDFS-11488. JN log segment syncing should support HA upgrade. Contributed by Hanisha Koneru. 2017-05-03 15:53:43 -07:00
Mingliang Liu 616413ecb2 HDFS-11739. Fix regression in tests caused by YARN-679. Contributed by Steve Loughran 
(cherry picked from commit 83dded556d)
 2017-05-03 11:23:15 -07:00
Erik Krogen 9d6b873d3c HDFS-11717. Add unit test for HDFS-11709 StandbyCheckpointer should handle non-existing legacyOivImageDir gracefully. Contributed by Erik Krogen. 
(cherry picked from commit d9014bda93)

Conflicts:
	hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/ha/TestStandbyCheckpoints.java
 2017-05-02 18:39:37 -07:00
Xiaoyu Yao 3e7f97fb0b HDFS-11593. Change SimpleHttpProxyHandler#exceptionCaught log level from info to debug. Contributed by Xiaobing Zhou. 
(cherry picked from commit 1058b40843)
 2017-05-01 16:13:30 -07:00
Kihwal Lee f77d138725 HDFS-11714. Newly added NN storage directory won't get initialized and cause space exhaustion. Contributed by Kihwal Lee. 2017-05-01 17:33:24 -05:00
Kihwal Lee 6a6d0ece99 HDFS-11609. Some blocks can be permanently lost if nodes are decommissioned while dead. Contributed by Kihwal Lee. 2017-05-01 14:20:37 -05:00
Zhe Zhang fc46f398d9 HDFS-11709. StandbyCheckpointer should handle an non-existing legacyOivImageDir gracefully. Contributed by Erik Krogen. 
(cherry picked from commit d8a3309830)
 2017-04-27 09:51:04 -07:00
Konstantin V Shvachko 4cbf5c5c41 HDFS-11384. Balancer disperses getBlocks calls to avoid NameNode's rpc queue saturation. Contributed by Konstantin V Shvachko. 
(cherry picked from commit 28eb2aabeb)

Conflicts:
	hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/balancer/TestBalancer.java
 2017-04-26 19:02:48 -07:00
Akira Ajisaka cc66153e12
HDFS-11417. Add datanode admin command to get the storage info. Contributed by Surendra Singh Lilhore. 
(cherry picked from commit 93fa48fcf2)

 Conflicts:
	hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/protocol/ClientDatanodeProtocol.java
	hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/protocolPB/ClientDatanodeProtocolTranslatorPB.java
	hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/ClientDatanodeProtocolServerSideTranslatorPB.java
 2017-04-26 18:08:12 +09:00
Xiaoyu Yao fc0e6de929 HADOOP-14207. "dfsadmin -refreshCallQueue" fails with DecayRpcScheduler. Contributed by Surendra Singh Lihore. 
(cherry picked from commit 918dee10f56861d15bb6644edcefb4246a3e00a4)
 2017-04-25 18:49:44 -07:00
Jason Lowe 31af85c18e HDFS-11691. Add a proper scheme to the datanode links in NN web UI. Contributed by Kihwal Lee 
(cherry picked from commit e4321ec843)
 2017-04-25 17:31:31 -05:00
John Zhuge 5046a45507 HDFS-11685. TestDistributedFileSystem.java fails to compile. Contributed by John Zhuge. 2017-04-19 22:10:18 -07:00
Andrew Wang efb790b0d6 HDFS-11660. TestFsDatasetCache#testPageRounder fails intermittently with AssertionError. 
(cherry picked from commit 74a723852d)
 2017-04-19 18:10:16 -07:00
Yiqun Lin e278eb3ab5 HDFS-11316. TestDataNodeVolumeFailure#testUnderReplicationAfterVolFailure fails in trunk. Contributed by Yiqun Lin. 
(cherry picked from commit 724bb86351)
 2017-04-19 12:15:52 -05:00
Arpit Agarwal 5c092097b6 HDFS-11603. Improve slow mirror/disk warnings in BlockReceiver. 2017-04-18 16:20:43 -07:00
Konstantin V Shvachko c3840bde54 HDFS-11634. Optimize BlockIterator when interating starts in the middle. Contributed by Konstantin V Shvachko. 
(cherry picked from commit 8dfcd95d58)
 2017-04-17 17:06:18 -07:00
Zhe Zhang 051ab77806 HDFS-11615. FSNamesystemLock metrics can be inaccurate due to millisecond precision. Contributed by Erik Krogen. 
(cherry picked from commit ad49098eb3)
 2017-04-17 16:28:58 -07:00