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4286 Commits

Author SHA1 Message Date
Kihwal Lee 5305a392c3 HDFS-10789. Route webhdfs through the RPC call queue. Contributed by Daryn Sharp and Rushabh S Shah. 
(cherry picked from commit 85cd06f663)

Conflicts:
	hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/web/resources/NamenodeWebHdfsMethods.java
	hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
 2016-10-12 15:22:51 -05:00
Mingliang Liu e341e5151a HDFS-10965. Add unit test for HDFS command 'dfsadmin -printTopology'. Contributed by Xiaobing Zhou 
(cherry picked from commit f340d286d441d78c847722b529939b78abf9d2f3)
 2016-10-11 19:59:36 -07:00
Xiaoyu Yao 2c77aca782 HDFS-10984. Expose nntop output as metrics. Contributed by Siddharth Wagle. 
(cherry picked from commit 61f0490a73)
 2016-10-11 15:56:12 -07:00
Andrew Wang a52c33fdb8 HDFS-10991. Export hdfsTruncateFile symbol in libhdfs. Contributed by Surendra Singh Lilhore. 
(cherry picked from commit dacd3ec66b)
 2016-10-11 15:07:22 -07:00
Wei-Chiu Chuang 402856a8a7 HDFS-10933. Refactor TestFsck. Contributed by Takanobu Asanuma. 2016-10-11 13:18:48 -07:00
Mingliang Liu 11e748394d HDFS-10988. Refactor TestBalancerBandwidth. Contributed by Brahma Reddy Battula 
(cherry picked from commit b963818621)
 2016-10-10 13:23:10 -07:00
Mingliang Liu 6c137ea94e HDFS-10972. Add unit test for HDFS command 'dfsadmin -getDatanodeInfo'. Contributed by Xiaobing Zhou 
(cherry picked from commit 3441c746b5)
 2016-10-10 11:45:43 -07:00
Xiao Chen 5c96ef365d HDFS-10797. Disk usage summary of snapshots causes renamed blocks to get counted twice. Contributed by Sean Mackrory. 
(cherry picked from commit 3ea027e970ec7c95a10e581435cdb6c3a6b64abb)
 2016-10-07 17:37:23 -07:00
Kihwal Lee 7f05306895 HDFS-10980. Optimize check for existence of parent directory. Contributed by Daryn Sharp. 
(cherry picked from commit e57fa81d95)
 2016-10-07 17:21:28 -05:00
Kihwal Lee 5ea87e4aeb HDFS-10979. Pass IIP for FSDirDeleteOp methods. Contributed by Daryn Sharp. 
(cherry picked from commit 3565c9af17)
 2016-10-07 14:35:28 -05:00
Kihwal Lee 76c03acc6d HDFS-10939. Reduce performance penalty of encryption zones. Contributed by Daryn Sharp. 2016-10-07 13:20:05 -05:00
Brahma Reddy Battula cddd35e1f0 HDFS-10969. Fix typos in hdfs-default.xml Contributed by Yiqun Lin 
(cherry picked from commit be3cb10f53)
 2016-10-07 22:19:21 +05:30
Kihwal Lee e3a9666d28 HDFS-10955. Pass IIP for FSDirAttr methods. Contributed by Daryn Sharp. 2016-10-06 16:32:12 -05:00
Chris Nauroth a28ffd0fde HADOOP-13150. Avoid use of toString() in output of HDFS ACL shell commands. Contributed by Chris Nauroth. 
(cherry picked from commit 1d330fbaf6)
 2016-10-06 13:22:35 -07:00
Mingliang Liu 7aee005c03 HDFS-10893. Refactor TestDFSShell by setting up MiniDFSCluser once for all commands test. Contributed by Mingliang Liu 2016-10-06 08:59:49 -07:00
Brahma Reddy Battula d9e4ad78ca HDFS-10963. Reduce log level when network topology cannot find enough datanodes. Contributed by Xiao chen 
(cherry picked from commit b90fc70d67)
 2016-10-06 17:48:49 +05:30
Mingliang Liu a868cf4046 Revert "HDFS-10893. Refactor TestDFSShell by setting up MiniDFSCluser once for all commands test. Contributed by Mingliang Liu" 
This reverts commit 14bacd2b99.
 2016-10-05 23:10:28 -07:00
Mingliang Liu 14bacd2b99 HDFS-10893. Refactor TestDFSShell by setting up MiniDFSCluser once for all commands test. Contributed by Mingliang Liu 2016-10-05 22:54:27 -07:00
Wei-Chiu Chuang 434403a2a0 HDFS-10683. Make class Token$PrivateToken private. Contributed by John Zhuge. 
(cherry picked from commit c5ca216915)
 2016-10-05 17:46:46 -07:00
Andrew Wang 6b2a853dd7 HDFS-10962. TestRequestHedgingProxyProvider is flaky. 
(cherry picked from commit e68c7b96c7)
 2016-10-05 15:09:11 -07:00
Kihwal Lee b565fa8e05 HDFS-10956. Remove rename/delete performance penalty when not using snapshots. Contributed by Daryn Sharp. 
(cherry picked from commit 44f48ee96e)
 2016-10-04 15:26:42 -05:00
Kihwal Lee a9a2f64e56 HDFS-10878. TestDFSClientRetries#testIdempotentAllocateBlockAndClose throws ConcurrentModificationException. Contributed by Rushabh S Shah. 
(cherry picked from commit 382307cbdd)
 2016-10-04 11:10:29 -05:00
Brahma Reddy Battula 560e524f93 HDFS-10947. Correct the API name for truncate in webhdfs document. Contributed by Surendra Singh Lilhore 
(cherry picked from commit ef7f06f7d1)
 2016-10-04 18:51:40 +05:30
Brahma Reddy Battula c9df3c5f21 HDFS-10944. Correct the javadoc of dfsadmin#disallowSnapshot. Contributed by Jagadesh Kiran N 
(cherry picked from commit 5ea0210c7f)
 2016-10-04 18:37:43 +05:30
Mingliang Liu 612aa0cc0b HDFS-10934. TestDFSShell#testStat fails intermittently. Contributed by Eric Badger 
(cherry picked from commit f61e3d13e9)
 2016-10-03 22:47:09 -04:00
Mingliang Liu d963ecb918 HDFS-10810. setreplication removing block from underconstrcution temporarily. Contributed by Brahma Reddy Battula 2016-10-03 21:59:31 -04:00
Xiao Chen d9b686a2bd HDFS-10918. Add a tool to get FileEncryptionInfo from CLI. Contributed by Xiao Chen. 
(cherry picked from commit 853d65a157)
 2016-10-03 16:02:07 -07:00
Xiaoyu Yao 6f3744195d HDFS-10690. Optimize insertion/removal of replica in ShortCircuitCache. Contributed by Fenghua Hu. 
(cherry picked from commit 607705c488)
 2016-10-03 11:00:15 -07:00
Kihwal Lee 03b797a6ac HDFS-10940. Reduce performance penalty of block caching when not used. Contributed by Daryn Sharp. 
(cherry picked from commit 744208431f)

Conflicts:
	hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
	hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirStatAndListingOp.java
 2016-10-03 11:41:19 -05:00
Kihwal Lee ebfbce3b5f HDFS-10945. Fix the Findbugwaring FSNamesystem#renameTo() in branch-2. Contributed by Brahma Reddy Battula. 2016-10-03 10:48:14 -05:00
Kihwal Lee 2ee47f02cf HDFS-10619. Cache path in InodesInPath. Contributed by Daryn Sharp. 
(cherry picked from commit 90020624b0)
 2016-10-03 09:20:08 -05:00
Arpit Agarwal 6dd747b6bc Revert "HDFS-10923. Make InstrumentedLock require ReentrantLock." 
This reverts commit 9873ed32c6.
 2016-09-30 23:12:07 -07:00
Arpit Agarwal 9873ed32c6 HDFS-10923. Make InstrumentedLock require ReentrantLock. 2016-09-30 23:04:22 -07:00
Kihwal Lee 2551ff80b7 HDFS-10851. FSDirStatAndListingOp: stop passing path as string. Contributed by Daryn Sharp. 2016-09-30 15:59:40 -05:00
Zhe Zhang dfca0f4abb HDFS-10896. Move lock logging logic from FSNamesystem into FSNamesystemLock. Contributed by Erik Krogen. 
(cherry-picked from commit 434c5ea75d)
 2016-09-30 13:30:31 -07:00
Kihwal Lee 10222cd54e HDFS-10850. getEZForPath should NOT throw FNF. Contributed by Andrew Wang. 
(cherry picked from commit 0670149c88)
 2016-09-30 08:58:38 -05:00
Mingliang Liu a7c1636296 HDFS-10892. Add unit tests for HDFS command 'dfs -tail' and 'dfs -stat'. Contributed by Mingliang Liu 
(cherry picked from commit 84c6264079)
 2016-09-28 16:09:09 -07:00
Andrew Wang b12f004474 HDFS-10914. Move remnants of oah.hdfs.client to hadoop-hdfs-client. 
(cherry picked from commit 92e5e91598)

 Conflicts:
	hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/client/HdfsAdmin.java
 2016-09-28 16:03:16 -07:00
Kihwal Lee 087c61192d HDFS-10779. Rename does not need to re-solve destination. Contributed by Daryn Sharp. 
(cherry picked from commit 5f34402ada)
 2016-09-28 17:58:53 -05:00
Arpit Agarwal 50888471d9 HDFS-10824. MiniDFSCluster#storageCapacities has no effects on real capacity. Contributed by Xiaobing Zhou. 2016-09-28 15:56:08 -07:00
Brahma Reddy Battula e9a34ae29c HDFS-9444. Add utility to find set of available ephemeral ports to ServerSocketUtil. Contributed by Masatake Iwasaki 2016-09-28 10:50:50 +05:30
Mingliang Liu 54ca505c41 HDFS-10915. Fix time measurement bug in TestDatanodeRestart. Contributed by Xiaobing Zhou 
(cherry picked from commit 6437ba18c5)
 2016-09-27 20:42:47 -07:00
Wangda Tan 269401dc83 HADOOP-13544. JDiff reports unncessarily show unannotated APIs and cause confusion while our javadocs only show annotated and public APIs. (vinodkv via wangda) 
(cherry picked from commit 875062b5bc)
 2016-09-27 11:27:25 -07:00
Arpit Agarwal 80628ee2c3 HDFS-10828. Fix usage of FsDatasetImpl object lock in ReplicaMap. (Arpit Agarwal) 2016-09-27 10:02:22 -07:00
Masatake Iwasaki d17f03b625 HDFS-10426. TestPendingInvalidateBlock failed in trunk. Contributed by Yiqun Lin. 
(cherry picked from commit f55eb981dd)
 2016-09-28 01:40:55 +09:00
Arpit Agarwal b3c0656e90 HDFS-10713. Throttle FsNameSystem lock warnings. Contributed by Hanisha Koneru. 2016-09-27 09:00:39 -07:00
Brahma Reddy Battula 61368c8039 HDFS-10889. Remove outdated Fault Injection Framework documentaion. Contributed by Brahma Reddy Battula 
(cherry picked from commit df1d0f5d56)
 2016-09-27 19:34:38 +05:30
Arpit Agarwal 809a45a60c HDFS-9895. Remove unnecessary conf cache from DataNode. Contributed by Xiaobing Zhou. 2016-09-26 19:24:16 -07:00
Wei-Chiu Chuang bde787db23 HDFS-10609. Uncaught InvalidEncryptionKeyException during pipeline recovery may abort downstream applications. Contributed by Wei-Chiu Chuang. 
(cherry picked from commit 3ae652f821)
 2016-09-26 14:44:48 -07:00
Brahma Reddy Battula 74962e3451 HDFS-10869. Remove the unused method InodeId#checkId(). Contributed by Jagadesh Kiran N 
(cherry picked from commit 3e37e243ee)
 2016-09-25 11:04:30 +05:30
Wei-Chiu Chuang 6c98455728 HDFS-10876. Dispatcher#dispatch should log IOException stacktrace. Contributed by Manoj Govindassamy. 
(cherry picked from commit 74b3dd514c)
 2016-09-23 13:28:18 -07:00
Konstantin V Shvachko c872ecaab4 HDFS-10843. Update space quota when a UC block is completed rather than committed. Contributed by Erik Krogen. 
(cherry picked from commit a5bb88c8e0)
 2016-09-23 10:40:09 -07:00
Brahma Reddy Battula 347131fe8d HDFS-10886. Replace fs.default.name with fs.defaultFS in viewfs document. 
(cherry picked from commit bbdf350ff9)
 2016-09-23 19:32:37 +05:30
Masatake Iwasaki 1b91ebb714 HDFS-9333. Some tests using MiniDFSCluster errored complaining port in use. (iwasakims) 
(cherry picked from commit 964e546ab1)

 Conflicts:
  hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockTokenWithDFSStriped.java
 2016-09-21 10:40:56 +09:00
Xiao Chen 81df2be017 HDFS-10879. TestEncryptionZonesWithKMS#testReadWrite fails intermittently. Contributed by Xiao Chen. 
(cherry picked from commit d31bef575478fe78c0600fb602e117e4b81c9887)
 2016-09-20 16:57:34 -07:00
Xiao Chen 4e376f162f HDFS-10875. Optimize du -x to cache intermediate result. Contributed by Xiao Chen. 
(cherry picked from commit e52d6e7a46)
 2016-09-19 21:45:05 -07:00
Xiao Chen b6a60d715d HDFS-10489. Deprecate dfs.encryption.key.provider.uri for HDFS encryption zones. Contributed by Xiao Chen. 
(cherry picked from commit ea839bd48e)

Conflicts:
	hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/HdfsConfiguration.java
	hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
 2016-09-19 16:38:18 -07:00
Andrew Wang b03a0be7a3 HDFS-10823. Implement HttpFSFileSystem#listStatusIterator. 
(cherry picked from commit 8a40953058)
 2016-09-16 15:37:49 -07:00
Akira Ajisaka 214b6d16d5 HDFS-10862. Typos in 4 log messages. Contributed by Mehran Hassani. 
(cherry picked from commit b09a03cd7d)
 2016-09-16 16:12:19 +09:00
Arpit Agarwal 853e1e6946 HDFS-10805. Reduce runtime for append test. Contributed by Gergely Novak. 2016-09-14 09:31:24 -07:00
Andrew Wang abaad976cd HDFS-10837. Standardize serializiation of WebHDFS DirectoryListing. 
(cherry picked from commit db6d243cf8)
 2016-09-13 11:02:43 -07:00
Akira Ajisaka 764cf431ca HDFS-10856. Update the comment of BPServiceActor$Scheduler#scheduleNextBlockReport. Contributed by Yiqun Lin. 
(cherry picked from commit f0876b8b60)
 2016-09-13 14:51:04 +09:00
Yongjun Zhang 223ce108a1 HDFS-10657. testAclCLI.xml setfacl test should expect mask r-x. (John Zhuge via Yongjun Zhang) 
(cherry picked from commit d2466ec3e0)
 2016-09-12 21:46:09 -07:00
Arpit Agarwal 6948691ad1 HDFS-10830. FsDatasetImpl#removeVolumes crashes with IllegalMonitorStateException when vol being removed is in use. (Arpit Agarwal and Manoj Govindassamy) 2016-09-10 18:22:15 -07:00
Arpit Agarwal 012b266e5e HDFS-10742. Measure lock time in FsDatasetImpl. Contributed by Chen Liang. 2016-09-10 18:04:00 -07:00
Arpit Agarwal ad0ac6cced HDFS-10682. Replace FsDatasetImpl object lock with a separate lock object. (Contributed by Chen Liang) 2016-09-10 17:48:27 -07:00
Xiao Chen bb6d866207 HDFS-9781. FsDatasetImpl#getBlockReports can occasionally throw NullPointerException. Contributed by Manoj Govindassamy. 2016-09-09 18:25:35 -07:00
Andrew Wang f448ce2a89 HDFS-10832. Propagate ACL bit and isEncrypted bit in HttpFS FileStatus permissions. 
(cherry picked from commit cba973f036)
 2016-09-09 12:16:08 -07:00
Andrew Wang 72ea641468 HDFS-10831. Add log when URLConnectionFactory.openConnection failed. Contributed by yunjiong zhao. 
(cherry picked from commit b07c266dca)
 2016-09-08 18:30:26 -07:00
Akira Ajisaka c0756dfef6 HDFS-10847. Complete the document for FileDistribution processor in OfflineImageViewer. Contributed by Yiqun Lin. 
(cherry picked from commit 20a20c2f6e)
 2016-09-09 01:35:36 +09:00
Akira Ajisaka fe6dd66174 HDFS-10778. Add -format option to make the output of FileDistribution processor human-readable in OfflineImageViewer. 
(cherry picked from commit 63f594892e)
 2016-09-08 15:18:25 +09:00
Arpit Agarwal f9415b7a7e HDFS-9038. DFS reserved space is erroneously counted towards non-DFS used. (Brahma Reddy Battula) 2016-09-06 13:44:22 -07:00
Xiao Chen 3025992bd3 HDFS-10841. Remove duplicate or unused variable in appendFile(). Contributed by Kihwal Lee. 
(cherry picked from commit f6c0b7543f)

Conflicts:
	hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirAppendOp.java
 2016-09-06 11:52:30 -07:00
Andrew Wang 40eab77562 HDFS-10833. Fix JSON errors in WebHDFS.md examples. 
(cherry picked from commit cbd909ce2a)
 2016-09-02 14:50:41 -07:00
Lei Xu d6bfb2176c HDFS-10822. Log DataNodes in the write pipeline. John Zhuge via Lei Xu 
(cherry picked from commit 5a8c5064d1)
 2016-09-02 11:02:38 -07:00
Allen Wittenauer b1466b8124 HDFS-9877. HDFS Namenode UI: Fix browsing directories that need to be encoded (Ravi Prakash via aw) 
(cherry picked from commit 15f018434c)
 2016-09-01 14:24:13 -07:00
Allen Wittenauer b9eedc24a6 HDFS-7987. Allow files / directories to be moved (Ravi Prakash via aw) 
(cherry picked from commit d44f4745b4)
 2016-09-01 14:23:42 -07:00
Allen Wittenauer 743c0ebd67 HDFS-7767. Use the noredirect flag in WebHDFS to allow web browsers to upload files via the NN UI (Ravi Prakash via aw) 
(cherry picked from commit 99a771cd7a)
 2016-09-01 14:22:23 -07:00
Zhe Zhang 776eccd873 Addendum fix for HDFS-10817 to fix failure of the added testFSReadLockLongHoldingReport in branch-2. 
(cherry picked from commit 6c600360ca)
 2016-08-31 23:44:54 -07:00
Zhe Zhang f87e2f5d05 HDFS-10817. Add Logging for Long-held NN Read Locks. Contributed by Erik Krogen. 
(cherry picked from commit 6f4b0d33ca)
 2016-08-31 15:54:03 -07:00
Andrew Wang 72d90cbe32 HDFS-10784. Implement WebHdfsFileSystem#listStatusIterator. 
(cherry picked from commit 85bab5fb57)
 2016-08-31 14:33:14 -07:00
Allen Wittenauer 72334a4be3 HDFS-7766. Add a flag to WebHDFS op=CREATE to not respond with a 307 redirect (Ravi Prakash via aw) 
(cherry picked from commit 4b0f55b6ea)
 2016-08-31 14:33:10 -07:00
Kihwal Lee 34042ccbb9 HDFS-10729. Improve log message for edit loading failures caused by FS limit checks. Contributed by Wei-Chiu Chuang. 
(cherry picked from commit 01721dd88e)
 2016-08-31 14:09:23 -05:00
Ming Ma 56c9a96a76 HDFS-9392. Admins support for maintenance state. Contributed by Ming Ma. 
(cherry picked from commit 9dcbdbdb5a)
 2016-08-30 14:09:18 -07:00
Wei-Chiu Chuang abbd95b790 HDFS-10760. DataXceiver#run() should not log InvalidToken exception as an error. Contributed by Pan Yuxuan. 
(cherry picked from commit c4ee6915a1)
 2016-08-30 10:44:27 -07:00
Zhe Zhang 320be1b3c6 HDFS-10814. Add assertion for getNumEncryptionZones when no EZ is created. Contributed by Vinitha Reddy Gankidi. 
(cherry picked from commit 4bd45f54ee)
 2016-08-29 23:42:46 -07:00
Xiao Chen 72863f0049 HDFS-4210. Throw helpful exception when DNS entry for JournalNode cannot be resolved. Contributed by Charles Lamb and John Zhuge. 
(cherry picked from commit 046f6bf0f944311fc70de3a96fc6ab8211cbbbd8)
 2016-08-29 17:48:49 -07:00
Yongjun Zhang 4bed2a4b9c HDFS-10625. VolumeScanner to report why a block is found bad. Contributed by Rushabh S Shah and Yiqun Lin. 
(cherry picked from commit 5d1609ddf2)
 2016-08-29 14:08:36 -07:00
Mingliang Liu 875c14004d HDFS-10807. Doc about upgrading to a version of HDFS with snapshots may be confusing. (Contributed by Mingliang Liu) 
(cherry picked from commit 6742fb6e68)
 2016-08-29 10:19:33 -07:00
Yongjun Zhang e813a3ea4a HDFS-10652. Add a unit test for HDFS-4660. Contributed by Vinayakumar B., Wei-Chiu Chuang, Yongjun Zhang. 
(cherry picked from commit c25817159a)
 2016-08-27 22:59:19 -07:00
Andrew Wang 1c47a356d8 HDFS-10793. Fix HdfsAuditLogger binary incompatibility introduced by HDFS-9184. Contributed by Manoj Govindassamy. 
(cherry picked from commit a445b82baa)
 2016-08-26 15:40:05 -07:00
Zhe Zhang f3a4cbcc60 HDFS-10798. Make the threshold of reporting FSNamesystem lock contention configurable. Contributed by Erik Krogen. 
(cherry picked from commit 407b519fb1)
 2016-08-26 14:20:48 -07:00
Kihwal Lee 442dfd1bbe HDFS-10768. Optimize mkdir ops. Contributed by Daryn Sharp. 
(cherry picked from commit 8b7adf4ddf)

Conflicts:
	hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirWriteFileOp.java
 2016-08-26 15:49:56 -05:00
Kihwal Lee 2a6497cc7c HDFS-8915. TestFSNamesystem.testFSLockGetWaiterCount fails intermittently. Contributed by Masatake Iwasaki. 
(cherry picked from commit 13fb1b50e6)
 2016-08-26 10:00:36 -05:00
Xiaoyu Yao fc67501393 HDFS-10748. TestFileTruncate#testTruncateWithDataNodesRestart runs sometimes timeout. Contributed by Yiqun Lin. 
(cherry picked from commit 4da5000dd3)
 2016-08-25 09:22:02 -07:00
Kihwal Lee ba3257baf5 HDFS-10772. Reduce byte/string conversions for get listing. Contributed by Daryn Sharp. 
(cherry picked from commit a1f3293762)
 2016-08-24 15:25:33 -05:00
Wei-Chiu Chuang d19e29bd68 HDFS-8986. Add option to -du to calculate directory space usage excluding snapshots. Contributed by Xiao Chen. 2016-08-24 08:49:54 -07:00
Daryn Sharp a30f6a68fa HDFS-10762. Pass IIP for file status related methods 
(cherry picked from commit ec252ce0fc)
 2016-08-24 08:51:05 -05:00
Zhe Zhang dfcbc12026 HADOOP-12765. HttpServer2 should switch to using the non-blocking SslSelectChannelConnector to prevent performance degradation when handling SSL connections. Contributed by Min Shen. Branch-2 patch contributed by Wei-Chiu Chuang. 2016-08-23 14:46:08 -07:00
Jason Lowe 8cd3996246 HDFS-9745. TestSecureNNWithQJM#testSecureMode sometimes fails with timeouts. Contributed by Xiao Chen 
(cherry picked from commit 126d165efd)
 2016-08-23 14:48:35 +00:00