Apache
/
hadoop
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
11,799 Commits 326 Branches 371 Tags 1.5 GiB
Commit Graph

4096 Commits

Author SHA1 Message Date
Colin Patrick Mccabe 0914658eb8 HDFS-10328. Add per-cache-pool default replication num configuration (xupeng via cmccabe) 
(cherry picked from commit 5f6b4157a4)
 2016-06-20 18:12:41 -07:00
Jitendra Pandey f2ef1145c5 HDFS-10538. Remove AsyncDistributedFileSystem. Contributed by Xiaobing Zhou and Jitendra Pandey. 2016-06-20 18:04:05 -07:00
Jitendra Pandey 8f93bbcb11 HADOOP-13291. Probing stats in DFSOpsCountStatistics/S3AStorageStatistics should be correctly implemented. Contributed by Mingliang Liu. 2016-06-20 16:28:55 -07:00
Brahma Reddy Battula 3f27f40503 HDFS-10474. hftp copy fails when file name with Chinese+special char in branch-2 (Contributed by Brahma Reddy Battula) 2016-06-20 12:38:18 +05:30
Arpit Agarwal bd33cc0179 HDFS-10437. ReconfigurationProtocol not covered by HDFSPolicyProvider. (Arpit Agarwal) 2016-06-18 16:17:10 -07:00
Andrew Wang 94759470b8 Fix hadoop-hdfs-native-client compilation on Windows. Contributed by Brahma Reddy Battula. 
(cherry picked from commit 3ff0510ffd)
 2016-06-17 15:54:57 -07:00
Kihwal Lee 35c6b725db HDFS-10493. Add links to datanode web UI in namenode datanodes page. Contributed by Weiwei Yang. 
(cherry picked from commit 280069510b)
 2016-06-17 11:12:16 -05:00
Akira Ajisaka a36aa920f4 HADOOP-12943. Add -w -r options in dfs -test command. Contributed by Weiwei Yang. 
(cherry picked from commit 09e82acaf9)
 2016-06-17 16:21:05 +09:00
Colin Patrick Mccabe 49c0d9b325 HDFS-9466. TestShortCircuitCache#testDataXceiverCleansUpSlotsOnFailure is flaky (Wei-Chiu Chuang via cmccabe) 
(cherry picked from commit c7921c9bdd)
 2016-06-16 13:52:38 -07:00
Arpit Agarwal 159b249a3d HDFS-10532. Typo in RollingUpgrade docs. (Contributed by Yiqun Lin) 2016-06-16 10:10:49 -07:00
Vinayakumar B 6ab1f545fb HDFS-10256. Use GenericTestUtils.getTestDir method in tests for temporary directories (Contributed by Vinayakumar B) 
(cherry picked from commit cc6c265171)
 2016-06-16 16:56:27 +05:30
Colin Patrick Mccabe 8280e3bcc2 HDFS-10525. Fix NPE in CacheReplicationMonitor#rescanCachedBlockMap (Xiao Chen via cmccabe) 
(cherry picked from commit 2ca73445f5)
 2016-06-15 22:50:36 -07:00
Colin Patrick Mccabe 17301ab395 HDFS-10505. OIV's ReverseXML processor should support ACLs (Surendra Singh Lilhore via cmccabe) 
(cherry picked from commit 2449db507d)
 2016-06-15 22:42:19 -07:00
Akira Ajisaka d1c475ddd4 HADOOP-12892. fix/rewrite create-release. Contributed by Allen Wittenauer. 2016-06-16 14:03:57 +09:00
Ming Ma 32b115da1d HDFS-9922. Upgrade Domain placement policy status marks a good block in violation when there are decommissioned nodes. (Chris Trezzo via mingma) 
(cherry picked from commit b48f27e794)
 2016-06-15 22:03:20 -07:00
Ming Ma b7436f4468 HDFS-9016. Display upgrade domain information in fsck. (mingma) 2016-06-14 20:07:37 -07:00
Andrew Wang ff4466fe15 HDFS-10516. Fix bug when warming up EDEK cache of more than one encryption zone. Contributed by Xiao Chen. 
(cherry picked from commit 709a814fe0)
 2016-06-13 11:50:25 -07:00
Masatake Iwasaki 0b7388b5d2 HDFS-10508. DFSInputStream should set thread's interrupt status after catching InterruptException from sleep. Contributed by Jing Zhao. 
(cherry picked from commit 8ea9bbce26)
 2016-06-09 14:53:56 +09:00
Ravi Prakash 9c5f7f290e HDFS-10220. A large number of expired leases can make namenode unresponsive and cause failover (Nicolas Fraison via raviprak) 
(cherry picked from commit ae047655f4)
 2016-06-08 13:46:41 -07:00
Andrew Wang 9319665461 Remove redundant TestMiniDFSCluster.testDualClusters. Contributed by Jiayi Zhou. 
(cherry picked from commit 1ee9ea0026)
 2016-06-08 12:58:59 -07:00
Jing Zhao 8b34040cb9 HDFS-10468. HDFS read ends up ignoring an interrupt. Contributed by Jing Zhao 
(cherry picked from commit be34e85e68)
 2016-06-07 10:52:33 -07:00
Zhe Zhang 0499907466 HDFS-10458. getFileEncryptionInfo should return quickly for non-encrypted cluster. 
(cherry picked from commit 6de9213df1)
(cherry picked from commit 06e38c835d)
 2016-06-07 08:57:27 -07:00
Jason Lowe 5b4c80b27e HDFS-9580. TestComputeInvalidateWork#testDatanodeReRegistration failed due to unexpected number of invalidate blocks. Contributed by Wei-Chiu Chuang. 
Change-Id: I9411dfb1dd4605cbcc515ca3361218d35d7c5fe3
(cherry picked from commit 0087734cc1)

Conflicts:

	hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
 2016-06-07 15:33:43 +00:00
Akira Ajisaka b8c1db6f63 HDFS-10485. Fix findbugs warning in FSEditLog.java. (aajisaka) 
(cherry picked from commit e620530301)
 2016-06-07 17:53:09 +09:00
Wangda Tan d30e194dda Revert "HDFS-10458. getFileEncryptionInfo should return quickly for non-encrypted cluster." 
This reverts commit 06e38c835d.
 2016-06-06 22:17:30 -07:00
Zhe Zhang 06e38c835d HDFS-10458. getFileEncryptionInfo should return quickly for non-encrypted cluster. 
(cherry picked from commit 6de9213df1)
 2016-06-06 15:53:12 -07:00
Tsz-Wo Nicholas Sze 074588d78b Revert "Revert "HADOOP-13226 Support async call retry and failover."" 
This reverts commit 5bfadb8e6b.
 2016-06-06 16:52:24 +08:00
Tsz-Wo Nicholas Sze 48323b6636 Revert "Revert "HDFS-10430. Reuse FileSystem#access in TestAsyncDFS. Contributed by Xiaobing Zhou."" 
This reverts commit 6f8f40b2a5.
 2016-06-06 16:52:19 +08:00
Tsz-Wo Nicholas Sze 6762855f67 Revert "Revert "HDFS-10431 Refactor and speedup TestAsyncDFSRename. Contributed by Xiaobing Zhou"" 
This reverts commit 8e2245d0a4.
 2016-06-06 16:52:14 +08:00
Tsz-Wo Nicholas Sze 136d3b6414 Revert "Revert "HDFS-10390. Implement asynchronous setAcl/getAclStatus for DistributedFileSystem. Contributed by Xiaobing Zhou"" 
This reverts commit 87ea0784eb.
 2016-06-06 16:52:09 +08:00
Tsz-Wo Nicholas Sze 09a543fc86 Revert "Revert "HADOOP-13168. Support Future.get with timeout in ipc async calls."" 
This reverts commit 071aeab585.
 2016-06-06 16:52:02 +08:00
Tsz-Wo Nicholas Sze 428dc52e56 Revert "Revert "HDFS-10346. Implement asynchronous setPermission/setOwner for DistributedFileSystem. Contributed by Xiaobing Zhou"" 
This reverts commit 2529cabf12.
 2016-06-06 16:51:54 +08:00
Tsz-Wo Nicholas Sze 7b9062f405 Revert "Revert "HADOOP-12957. Limit the number of outstanding async calls. Contributed by Xiaobing Zhou"" 
This reverts commit 7d4c16bae9.
 2016-06-06 16:51:48 +08:00
Tsz-Wo Nicholas Sze c1947a71ff Revert "Revert "HDFS-10224. Implement asynchronous rename for DistributedFileSystem. Contributed by Xiaobing Zhou"" 
This reverts commit c11c2ee649.
 2016-06-06 16:51:41 +08:00
Andrew Wang c11c2ee649 Revert "HDFS-10224. Implement asynchronous rename for DistributedFileSystem. Contributed by Xiaobing Zhou" 
This reverts commit d316f44059.
 2016-06-03 18:11:12 -07:00
Andrew Wang 7d4c16bae9 Revert "HADOOP-12957. Limit the number of outstanding async calls. Contributed by Xiaobing Zhou" 
This reverts commit 7e0824faa9.
 2016-06-03 18:10:49 -07:00
Andrew Wang 2529cabf12 Revert "HDFS-10346. Implement asynchronous setPermission/setOwner for DistributedFileSystem. Contributed by Xiaobing Zhou" 
This reverts commit 69768bf9e0.
 2016-06-03 18:10:49 -07:00
Andrew Wang 071aeab585 Revert "HADOOP-13168. Support Future.get with timeout in ipc async calls." 
This reverts commit 658072d62e.
 2016-06-03 18:10:49 -07:00
Andrew Wang 87ea0784eb Revert "HDFS-10390. Implement asynchronous setAcl/getAclStatus for DistributedFileSystem. Contributed by Xiaobing Zhou" 
This reverts commit 56745a0cf4.
 2016-06-03 18:10:48 -07:00
Andrew Wang 8e2245d0a4 Revert "HDFS-10431 Refactor and speedup TestAsyncDFSRename. Contributed by Xiaobing Zhou" 
This reverts commit 72773f8ea8.
 2016-06-03 18:10:48 -07:00
Andrew Wang 6f8f40b2a5 Revert "HDFS-10430. Reuse FileSystem#access in TestAsyncDFS. Contributed by Xiaobing Zhou." 
This reverts commit 193f822b9a.
 2016-06-03 18:10:48 -07:00
Andrew Wang 5bfadb8e6b Revert "HADOOP-13226 Support async call retry and failover." 
This reverts commit f7189d6a1c.
 2016-06-03 18:10:47 -07:00
Andrew Wang d5609e3499 HDFS-10481. HTTPFS server should correctly impersonate as end user to open file. Contributed by Xiao Chen. 
(cherry picked from commit 47e0321ee9)
 2016-06-03 17:21:27 -07:00
Andrew Wang 03c4724c88 HADOOP-13155. Implement TokenRenewer to renew and cancel delegation tokens in KMS. Contributed by Xiao Chen. 
(cherry picked from commit 713cb71820)

 Conflicts:
	hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/crypto/key/KeyProviderDelegationTokenExtension.java
	hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DFSUtilClient.java
 2016-06-03 17:01:11 -07:00
Akira Ajisaka b6d5546e24 HDFS-10341. Add a metric to expose the timeout number of pending replication blocks. (aajisaka) 2016-06-03 16:04:11 +09:00
Akira Ajisaka cddf6b4fc7 HDFS-10471. DFSAdmin#SetQuotaCommand's help msg is not correct. Contributed by Yiqun Lin. 
(cherry picked from commit 1df6f5735c)
 2016-06-03 04:11:03 +09:00
Akira Ajisaka cbf6cacf64 HDFS-10449. TestRollingFileSystemSinkWithHdfs#testFailedClose() fails on branch-2. Contributed by Takanobu Asanuma. 2016-06-03 03:08:22 +09:00
Masatake Iwasaki 3740974413 HDFS-10367. TestDFSShell.testMoveWithTargetPortEmpty fails with Address bind exception. Contributed by Brahma Reddy Battula. 
(cherry picked from commit aadb77e412)

 Conflicts:
	hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSShell.java
 2016-06-02 20:59:40 +09:00
Akira Ajisaka 3dd557e4b6 HDFS-9476. TestDFSUpgradeFromImage#testUpgradeFromRel1BBWImage occasionally fail. Contributed by Masatake Iwasaki. 
(cherry picked from commit 69555fca06)
 2016-06-02 18:53:27 +09:00
Colin Patrick Mccabe a64e1425ed HADOOP-13137. TraceAdmin should support Kerberized cluster (Wei-Chiu Chuang via cmccabe) 
(cherry picked from commit 8ceb06e239)
 2016-05-31 18:05:28 -07:00
Colin Patrick Mccabe 14907d9b8c HDFS-10415. TestDistributedFileSystem#MyDistributedFileSystem attempts to set up statistics before initialize() is called (Mingliang Liu via cmccabe) 2016-05-31 17:19:25 -07:00
Tsz-Wo Nicholas Sze f7189d6a1c HADOOP-13226 Support async call retry and failover. 2016-05-31 17:01:43 -07:00
Chris Nauroth 193f822b9a HDFS-10430. Reuse FileSystem#access in TestAsyncDFS. Contributed by Xiaobing Zhou. 
(cherry picked from commit 21890c4239)
 2016-05-27 14:20:30 -07:00
Yongjun Zhang 2dfaedeb43 HDFS-10276. HDFS should not expose path info that user has no permission to see. (Yuanbo Liu via Yongjun Zhang) 
(cherry picked from commit 5ea6fd85c7)
 2016-05-27 10:14:30 -07:00
Karthik Kambatla b4c8729cf9 HDFS-10463. TestRollingFileSystemSinkWithHdfs needs some cleanup. (Daniel Templeton via kasha) 2016-05-26 14:39:07 -07:00
Tsz-Wo Nicholas Sze 72773f8ea8 HDFS-10431 Refactor and speedup TestAsyncDFSRename. Contributed by Xiaobing Zhou 2016-05-26 12:16:40 -07:00
Tsz-Wo Nicholas Sze e5dab68066 HDFS-8057 Move BlockReader implementation to the client implementation package. Contributed by Takanobu Asanuma 2016-05-25 12:12:27 -07:00
Vinayakumar B e28a51e988 HDFS-10217. show 'blockScheduled' tooltip in datanodes table. 
(cherry picked from commit 2dab64da2f)
 2016-05-25 12:35:15 +05:30
Karthik Kambatla afe603d973 HDFS-9782. RollingFileSystemSink should have configurable roll interval. (Daniel Templeton via kasha) 
(cherry picked from commit 57c31a3fef)
 2016-05-24 16:34:45 -07:00
Tsz-Wo Nicholas Sze 56745a0cf4 HDFS-10390. Implement asynchronous setAcl/getAclStatus for DistributedFileSystem. Contributed by Xiaobing Zhou 2016-05-24 14:52:50 -07:00
Tsz-Wo Nicholas Sze 076a73f207 HDFS-9365. Balaner does not work with the HDFS-6376 HA setup. 2016-05-24 13:08:04 -07:00
Masatake Iwasaki 094bc727c5 HDFS-10439. Update setOwner doc in HdfsPermissionsGuide. Contributed by John Zhuge. 
(cherry picked from commit 12eb5a7b11)
 2016-05-22 19:15:28 +09:00
Chris Nauroth e7b56cf93c HDFS-10438. When NameNode HA is configured to use the lifeline RPC server, it should log the address of that server. Contributed by Chris Nauroth. 
(cherry picked from commit 500e946729)
 2016-05-20 13:01:59 -07:00
Chris Nauroth d38f2090fa HDFS-10424. DatanodeLifelineProtocol not able to use under security cluster. Contributed by Chris Nauroth. 
(cherry picked from commit bcde1562d2)
 2016-05-20 12:47:52 -07:00
Tsz-Wo Nicholas Sze 658072d62e HADOOP-13168. Support Future.get with timeout in ipc async calls. 2016-05-19 15:58:15 -07:00
Kihwal Lee bae151801d HDFS-10417. Improve error message from checkBlockLocalPathAccess. Contributed by Tianyin Xu. 
(cherry picked from commit 204de430bf)
 2016-05-19 15:53:41 -05:00
Andrew Wang a44c87c2d0 HDFS-2173. saveNamespace should not throw IOE when only one storage directory fails to write VERSION file. Contributed by Andras Bokor. 
(cherry picked from commit 010e6ac328)
 2016-05-18 14:13:47 -07:00
Xiaoyu Yao 1470af8c95 HDFS-10383. Safely close resources in DFSTestUtil. Contributed by Mingliang Liu. 
(cherry picked from commit ccb1cade5b)
 2016-05-18 11:02:31 -07:00
Arpit Agarwal 24bed7768d HDFS-9926. MiniDFSCluster leaks dependency Mockito via DataNodeTestUtils. (Contributed by Josh Elser) 2016-05-18 09:21:41 -07:00
Lei Xu 2d1d2dde17 HDFS-10360. DataNode may format directory and lose blocks if current/VERSION is missing. (Wei-Chiu Chuang via lei) 
(cherry picked from commit bae11b95d492e0be7c5576097424879c2539b474)
 2016-05-17 16:37:36 -07:00
Yongjun Zhang 456fe08a6d HDFS-10381, DataStreamer DataNode exclusion log message should be warning. (John Zhuge via Yongjun Zhang) 
(cherry picked from commit 16c07cc68a)

Conflicts:
	hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/StripedDataStreamer.java
 2016-05-17 15:59:00 -07:00
Junping Du 7e36b9159e MAPREDUCE-6657. Job history server can fail on startup when NameNode is in start phase. Contributed by Haibo Chen. 
(cherry picked from commit f6ef876fe1)
 2016-05-17 14:42:11 -07:00
Kihwal Lee 1e7eb2d2ac Revert "HDFS-10417. Improve error message from checkBlockLocalPathAccess. Contributed by Tianyin Xu." 
This reverts commit 70ee477e5f.
 2016-05-17 15:20:59 -05:00
Kihwal Lee 70ee477e5f HDFS-10417. Improve error message from checkBlockLocalPathAccess. Contributed by Tianyin Xu. 
(cherry picked from commit 0942954e8a)
 2016-05-17 15:10:47 -05:00
Colin Patrick Mccabe 6ebb92c9c1 HDFS-10404. Fix formatting of CacheAdmin command usage help text (Yiqun Lin via cmccabe) 
(cherry picked from commit 7cd5ae62f6)
 2016-05-17 11:59:10 -07:00
Kihwal Lee 48be0ff67a HDFS-10303. DataStreamer#ResponseProcessor calculates packet ack latency incorrectly. Contributed by Surendra Singh Lilhore. 
(cherry picked from commit 4a5819dae2)
 2016-05-17 08:58:53 -05:00
Akira Ajisaka 7f03c1c90e HDFS-10242. Cannot create space quota of zero. Contributed by Takashi Ohnishi. 
(cherry picked from commit 9fe5828f05)
 2016-05-17 15:56:21 +09:00
Sangjin Lee 9330a7b4de HDFS-10208. Addendum for HDFS-9579: to handle the case when client machine can't resolve network path (Ming Ma via sjlee) 
(cherry picked from commit 61f46be071)
 2016-05-16 18:59:19 -07:00
Lei Xu 09a613b023 HDFS-10410. RedundantEditLogInputStream.LOG is set to wrong class. (John Zhuge via lei) 
(cherry picked from commit 6a6e74acf5)
 2016-05-16 17:07:03 -07:00
Andrew Wang 413f3dabbd HDFS-10333. Intermittent org.apache.hadoop.hdfs.TestFileAppend failure in trunk. Contributed by Yiqun Lin. 
(cherry picked from commit 45788204ae)
 2016-05-15 22:15:10 -07:00
Lei Xu 782441d47e HDFS-9389. Add maintenance states to AdminStates. (Ming Ma via lei) 
(cherry picked from commit a2774debf7)
 2016-05-12 15:44:07 -07:00
Tsz-Wo Nicholas Sze 69768bf9e0 HDFS-10346. Implement asynchronous setPermission/setOwner for DistributedFileSystem. Contributed by Xiaobing Zhou 2016-05-11 17:57:20 -07:00
Colin Patrick Mccabe 15bfcde238 HADOOP-13065. Add a new interface for retrieving FS and FC Statistics (Mingliang Liu via cmccabe) 
(cherry picked from commit 687233f20d)

Conflicts:
	hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/web/WebHdfsFileSystem.java
	hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDistributedFileSystem.java
 2016-05-11 14:02:03 -07:00
Colin Patrick Mccabe 43f32d3f4a HDFS-10377. CacheReplicationMonitor shutdown log message should use INFO level (Yiqun Lin via cmccabe) 
(cherry picked from commit f0252ad252)
 2016-05-10 11:20:46 -07:00
Akira Ajisaka 901588542b HDFS-6187. Update the document of hftp/hsftp in branch-2 to mention that they are deprecated. Contributed by Gergely Novák. 2016-05-10 09:32:33 -07:00
Akira Ajisaka a5bfb2dd25 Revert "HDFS-6187. Update the document of hftp/hsftp in branch-2 to mention that they are deprecated." 
This reverts commit c297df5995.
 2016-05-10 09:32:20 -07:00
Akira Ajisaka c297df5995 HDFS-6187. Update the document of hftp/hsftp in branch-2 to mention that they are deprecated. 2016-05-10 09:29:30 -07:00
Kihwal Lee 2c782fdb17 HDFS-10372. Fix for failing TestFsDatasetImpl#testCleanShutdownOfVolume. Contributed by Rushabh Shah. 
(cherry picked from commit b9e5a32fa1)
 2016-05-09 15:51:42 -05:00
Masatake Iwasaki 4ecbe2e9bf HDFS-2043. TestHFlush failing intermittently. Contributed by Lin Yiqun. 
(cherry picked from commit 2835f146b5)
 2016-05-06 15:47:51 +09:00
Xiaoyu Yao 35859872b7 HDFS-10324. Trash directory in an encryption zone should be pre-created with correct permissions. Contributed by Wei-Chiu Chuang. 
(cherry picked from commit dacd1f50fe)
 2016-05-05 18:15:32 -07:00
Ming Ma 5b53833171 HDFS-10320. Rack failures may result in NN terminate. (Xiao Chen via mingma) 
(cherry picked from commit 1268cf5fbe)
 2016-05-04 17:04:44 -07:00
Arpit Agarwal 313b4dbf28 HDFS-9902. Support different values of dfs.datanode.du.reserved per storage type. (Contributed by Brahma Reddy Battula) 2016-05-03 16:52:56 -07:00
Xiaoyu Yao ceb9a49d03 HDFS-10344. DistributedFileSystem#getTrashRoots should skip encryption zone that does not have .Trash. Contributed by Xiaoyu Yao. 
(cherry picked from commit 45a753ccf7)
 2016-05-02 19:37:48 -07:00
Harsh J 89c00da611 HDFS-2580. NameNode#main(...) can make use of GenericOptionsParser. Contributed by harsh. (harsh) 
(cherry picked from commit 54e612bfb9)
 2016-05-02 17:54:31 -07:00
Tsz-Wo Nicholas Sze 7e0824faa9 HADOOP-12957. Limit the number of outstanding async calls. Contributed by Xiaobing Zhou 2016-05-02 11:20:10 -07:00
Kihwal Lee 74938b537d HDFS-10347. Namenode report bad block method doesn't log the bad block or datanode. Contributed by Rushabh Shah. 
(cherry picked from commit 7da540d03e)
 2016-04-29 15:58:07 -05:00
Tsz-Wo Nicholas Sze fe3c2886be HDFS-10335 Mover$Processor#chooseTarget() always chooses the first matching target storage group. Contributed by Mingliang Liu 2016-04-29 11:24:32 -07:00
Kihwal Lee 0b9057e1d3 HDFS-10260. TestFsDatasetImpl#testCleanShutdownOfVolume often fails. Contributed by Rushabh Shah. 
(cherry picked from commit af9b000535)
 2016-04-29 09:59:58 -05:00
Kihwal Lee f715f14185 HDFS-9958. BlockManager#createLocatedBlocks can throw NPE for corruptBlocks on failed storages. Contributed by Kuhu Shukla. 2016-04-28 16:39:48 -05:00
Lei Xu 4289cb8b36 HDFS-3702. Add an option for NOT writing the blocks locally if there is a datanode on the same box as the client. (Contributed by Lei (Eddy) Xu) 
(cherry picked from commit 0a152103f1)
 2016-04-27 15:06:35 -07:00