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From gkesa...@apache.org
Subject svn commit: r1214414 [2/3] - in /hadoop/common/branches/branch-1: ./ CHANGES.txt ivy/hadoop-core-pom-template.xml src/mapred/
Date Wed, 14 Dec 2011 19:16:10 GMT
Modified: hadoop/common/branches/branch-1/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-1/CHANGES.txt?rev=1214414&r1=1214413&r2=1214414&view=diff
==============================================================================
--- hadoop/common/branches/branch-1/CHANGES.txt (original)
+++ hadoop/common/branches/branch-1/CHANGES.txt Wed Dec 14 19:16:10 2011
@@ -4,7 +4,7 @@ Release 1.1.0 - unreleased
 
   NEW FEATURES
 
-    MAPREDUCE-3118. Backport Gridmix and Rumen features to 
+    MAPREDUCE-3118. Backport Gridmix and Rumen features to
                     branch-0.20-security (Ravi Gummadi via amarrk)
   BUG FIXES
 
@@ -37,10 +37,10 @@ Release 1.1.0 - unreleased
 
     MAPREDUCE-3343. TaskTracker Out of Memory because of distributed cache.
     (Zhao Yunjiong).
-    
+
     HADOOP-7297. Remove docs for CN and BN, as they aren't present. (harsh)
 
-    HDFS-2541. For a sufficiently large value of blocks, the DN Scanner 
+    HDFS-2541. For a sufficiently large value of blocks, the DN Scanner
     may request a random number with a negative seed value. (harsh via eli)
 
     MAPREDUCE-2377. task-controller fails to parse configuration if it
@@ -73,7 +73,7 @@ Release 1.1.0 - unreleased
 
   IMPROVEMENTS
 
-    MAPREDUCE-3008. [Gridmix] Improve cumulative CPU usage emulation for 
+    MAPREDUCE-3008. [Gridmix] Improve cumulative CPU usage emulation for
                     short running tasks. (amarrk)
 
     MAPREDUCE-2836. Provide option to fail jobs when submitted to
@@ -82,7 +82,7 @@ Release 1.1.0 - unreleased
     HDFS-2332. Add test for HADOOP-7629 (using an immutable FsPermission
     object as an RPC parameter fails). (todd)
 
-    HADOOP-7509. Improve exception message thrown when Authentication is 
+    HADOOP-7509. Improve exception message thrown when Authentication is
     required. (Ravi Prakash via suresh)
 
     HADOOP-7745. Fix wrong variable name in exception message introduced
@@ -124,7 +124,7 @@ Release 1.0.0 - unreleased
 
   NEW FEATURES
 
-    HDFS-2316. [umbrella] WebHDFS: a complete FileSystem implementation for 
+    HDFS-2316. [umbrella] WebHDFS: a complete FileSystem implementation for
     accessing HDFS over HTTP (szetszwo)
 
     HDFS-2539. Support doAs and GETHOMEDIRECTORY in WebHDFS.
@@ -143,10 +143,10 @@ Release 1.0.0 - unreleased
     HDFS-2450. Filesystem supports path with both short names and FQDN.
     (Daryn Sharp via suresh)
 
-    HDFS-617. Support for non-recursive create() in HDFS. 
+    HDFS-617. Support for non-recursive create() in HDFS.
     (Kan Zhang via jitendra)
 
-    HADOOP-6840. Support non-recursive create() in FileSystem & 
+    HADOOP-6840. Support non-recursive create() in FileSystem &
     SequenceFile.Writer. (Nicolas Spiegelberg via jitendra)
 
     HADOOP-6886. LocalFileSystem Needs createNonRecursive API.
@@ -159,7 +159,7 @@ Release 1.0.0 - unreleased
     if the override value is same as the final parameter value.
     (Ravi Prakash via szetszwo)
 
-    HADOOP-7816. Allow HADOOP_HOME deprecated warning suppression based 
+    HADOOP-7816. Allow HADOOP_HOME deprecated warning suppression based
     on config specified in hadoop-env.sh (Dave Thompson via suresh)
 
     MAPREDUCE-3169. Create a new MiniMRCluster equivalent which only provides
@@ -167,10 +167,10 @@ Release 1.0.0 - unreleased
 
     HDFS-2552. Add Forrest doc for WebHDFS REST API.  (szetszwo)
 
-    HDFS-2246. Shortcut a local client reads to a Datanodes files directly. 
+    HDFS-2246. Shortcut a local client reads to a Datanodes files directly.
     (Andrew Purtell, Suresh, Jitendra)
 
-    HADOOP-7804. Enable hadoop config generator to set configurations to enable 
+    HADOOP-7804. Enable hadoop config generator to set configurations to enable
     short circuit read. (Arpit Gupta via jitendra)
 
     HDFS-2604. Add a log message to show if WebHDFS is enabled and a
@@ -178,17 +178,17 @@ Release 1.0.0 - unreleased
 
   BUG FIXES
 
-    HADOOP-7869. HADOOP_HOME warning happens all of the time (Owen O'Malley 
+    HADOOP-7869. HADOOP_HOME warning happens all of the time (Owen O'Malley
     via mattf)
 
-    HADOOP-7815. Fixed configuring map memory mb in hadoop-setup-conf.sh. 
+    HADOOP-7815. Fixed configuring map memory mb in hadoop-setup-conf.sh.
     (Ramya Sunil)
 
-    HDFS-2346. TestHost2NodesMap & TestReplicasMap will fail depending upon 
+    HDFS-2346. TestHost2NodesMap & TestReplicasMap will fail depending upon
     execution order of test methods. (Laxman and Uma Maheswara Rao via Matt Foley)
 
-    MAPREDUCE-3374. src/c++/task-controller/configure is not set executable in 
-    the tarball and that prevents task-controller from rebuilding. 
+    MAPREDUCE-3374. src/c++/task-controller/configure is not set executable in
+    the tarball and that prevents task-controller from rebuilding.
     (Roman Shaposhnik via Matt Foley)
 
     HDFS-1943. Fail to start datanode while start-dfs.sh is executed by root
@@ -196,7 +196,7 @@ Release 1.0.0 - unreleased
 
     HADOOP-7784. Fixed jsvc packaging. (Eric Yang)
 
-    HADOOP-7740. Fixed security audit logger configuration. 
+    HADOOP-7740. Fixed security audit logger configuration.
     (Arpit Gupta via Eric Yang)
 
     HADOOP-7765. Clean packaging working directory for Debian packaging.
@@ -244,17 +244,17 @@ Release 1.0.0 - unreleased
     HDFS-2528. WebHDFS: set delegation kind to WEBHDFS and add a HDFS token
     when http requests are redirected to datanode.  (szetszwo)
 
-    HDFS-2540. WebHDFS: change "Expect: 100-continue" to two-step write; change 
+    HDFS-2540. WebHDFS: change "Expect: 100-continue" to two-step write; change
     "HdfsFileStatus" and "localName" respectively to "FileStatus" and
     "pathSuffix" in JSON response.  (szetszwo)
 
-    HDFS-1257. Race condition on FSNamesystem#recentInvalidateSets introduced 
+    HDFS-1257. Race condition on FSNamesystem#recentInvalidateSets introduced
     by HADOOP-5124. (Eric Payne via jitendra)
 
     HDFS-611. Heartbeats times from Datanodes increase when there are plenty of
     blocks to delete. (Zheng Shao via jitendra)
 
-    HADOOP-7853. multiple javax security configurations cause conflicts. 
+    HADOOP-7853. multiple javax security configurations cause conflicts.
     (Daryn via jitendra)
 
     HDFS-2590. Fix the missing links in the WebHDFS forrest doc.  (szetszwo)
@@ -265,9 +265,10 @@ Release 1.0.0 - unreleased
 
     MAPREDUCE-3480. Disable TestJvmReuse in branch-1. (jitendra)
 
-    HADOOP-7855. fix to remove datanode dir creation and attribute 
+    HADOOP-7855. fix to remove datanode dir creation and attribute
     setup from hadoop-conf-setup.sh (gkesavan)
 
+    HADOOP-7461. Fix to add jackson dependency to hadoop pom. (gkesavan)
 
 Release 0.20.205.0 - 2011.10.06
 
@@ -278,11 +279,11 @@ Release 0.20.205.0 - 2011.10.06
 
     HDFS-200. Support append and sync for hadoop 0.20 branch. (dhruba)
 
-    HDFS-826. Allow a mechanism for an application to detect that 
+    HDFS-826. Allow a mechanism for an application to detect that
     datanode(s) have died in the write pipeline. (dhruba)
 
     HDFS-142. Blocks that are being written by a client are stored in the
-    blocksBeingWritten directory. 
+    blocksBeingWritten directory.
     (Dhruba Borthakur, Nicolas Spiegelberg, Todd Lipcon via dhruba)
 
     HDFS-630. Client can exclude specific nodes in the write pipeline.
@@ -291,13 +292,13 @@ Release 0.20.205.0 - 2011.10.06
     HDFS-895. Allow hflush/sync to occur in parallel with new writes to
     the file. (Todd Lipcon via hairong)
 
-    HDFS-1520. Lightweight NameNode operation recoverLease to trigger 
+    HDFS-1520. Lightweight NameNode operation recoverLease to trigger
     lease recovery. (Hairong Kuang via dhruba)
 
     MAPREDUCE-2764. Allow JobTracker to renew and cancel arbitrary token types,
     including delegation tokens obtained via hftp. (omalley)
 
-    HADOOP-7119 add Kerberos HTTP SPNEGO authentication support to 
+    HADOOP-7119 add Kerberos HTTP SPNEGO authentication support to
     Hadoop JT/NN/DN/TT web-consoles backport from Trunk (sanjay)
 
     HDFS-2284. Add a new FileSystem, webhdfs://, for supporting write Http
@@ -320,12 +321,12 @@ Release 0.20.205.0 - 2011.10.06
     HDFS-2385. Support renew and cancel delegation tokens in WebHDFS.
     (szetszwo)
 
-    MAPREDUCE-2777. Backport of MAPREDUCE-220 and MAPREDUCE-2469. Includes adding 
+    MAPREDUCE-2777. Backport of MAPREDUCE-220 and MAPREDUCE-2469. Includes adding
     cumulative CPU usage and total heap usage to task conters. (amarrk)
 
   BUG FIXES
 
-    HDFS-2404. WebHDFS liststatus json response is not correct. 
+    HDFS-2404. WebHDFS liststatus json response is not correct.
     (Suresh Srinivas via mattf)
 
     HDFS-2358. NPE when the default filesystem's uri has no authority.
@@ -336,7 +337,7 @@ Release 0.20.205.0 - 2011.10.06
 
     HADOOP-7691. Hadoop deb pkg group id. (Eric Yang via mattf)
 
-    HADOOP-7685. Resolve issues with hadoop-common file hadoop-setup-conf.sh. 
+    HADOOP-7685. Resolve issues with hadoop-common file hadoop-setup-conf.sh.
     (Eric Yang and Devaraj K, via mattf)
 
     HADOOP-7684. jobhistory server and secondarynamenode should have init.d script
@@ -345,10 +346,10 @@ Release 0.20.205.0 - 2011.10.06
     HADOOP-7683. remove hdfs-site.xml template has properties that are not used
     in 0.20-security. (Arpit Gupta via mattf)
 
-    HADOOP-7603. Set default hdfs, mapred uid, and hadoop group gid for RPM 
+    HADOOP-7603. Set default hdfs, mapred uid, and hadoop group gid for RPM
     packages. (Eric Yang via mattf)
 
-    HADOOP-7681. log4j.properties is missing properties for security audit and 
+    HADOOP-7681. log4j.properties is missing properties for security audit and
     hdfs audit should be changed to info. (Arpit Gupta via mattf)
 
     HADOOP-7679. log4j.properties templates must define mapred.jobsummary.logger
@@ -362,18 +363,18 @@ Release 0.20.205.0 - 2011.10.06
 
     MAPREDUCE-2324. Removed usage of broken
     ResourceEstimator.getEstimatedReduceInputSize to check against usable
-    disk-space on TaskTracker. (Robert Evans via acmurthy) 
+    disk-space on TaskTracker. (Robert Evans via acmurthy)
 
     MAPREDUCE-2729. Ensure jobs with reduces which can't be launched due to
-    slow-start do not count for user-limits. (Sherry Chen via acmurthy) 
+    slow-start do not count for user-limits. (Sherry Chen via acmurthy)
 
     HADOOP-6833. IPC leaks call parameters when exceptions thrown.
     (Todd Lipcon via eli)
-  
-    HADOOP-7400. Fix HdfsProxyTests fails when the -Dtest.build.dir 
+
+    HADOOP-7400. Fix HdfsProxyTests fails when the -Dtest.build.dir
     and -Dbuild.test is set a dir other than build dir (gkesavan)
 
-    MAPREDUCE-2650. back-port MAPREDUCE-2238 to 0.20-security. 
+    MAPREDUCE-2650. back-port MAPREDUCE-2238 to 0.20-security.
     (Sherry Chen via mahadev)
 
     HDFS-2053. Bug in INodeDirectory#computeContentSummary warning
@@ -381,8 +382,8 @@ Release 0.20.205.0 - 2011.10.06
 
     HDFS-2117. DiskChecker#mkdirsWithExistsAndPermissionCheck may
     return true even when the dir is not created. (eli)
-    
-    MAPREDUCE-2489. Jobsplits with random hostnames can make the 
+
+    MAPREDUCE-2489. Jobsplits with random hostnames can make the
     queue unusable. (Jeffrey Naisbitt via mahadev)
 
     HDFS-2190. NN fails to start if it encounters an empty or malformed fstime
@@ -396,7 +397,7 @@ Release 0.20.205.0 - 2011.10.06
     HDFS-606. Fix ConcurrentModificationException in invalidateCorruptReplicas.
     (Todd Lipcon via dhruba)
 
-    HDFS-1118. Fix socketleak on DFSClient. 
+    HDFS-1118. Fix socketleak on DFSClient.
     (Zheng Shao via dhruba)
 
     HDFS-988. Fix bug where savenameSpace can corrupt edits log.
@@ -411,12 +412,12 @@ Release 0.20.205.0 - 2011.10.06
     HDFS-1141. completeFile does not check lease ownership.
     (Todd Lipcon via dhruba)
 
-    HDFS-1204. Lease expiration should recover single files, 
+    HDFS-1204. Lease expiration should recover single files,
     not entire lease holder (Sam Rash via dhruba)
 
     HDFS-1346. DFSClient receives out of order packet ack. (hairong)
 
-    HDFS-1057.  Concurrent readers hit ChecksumExceptions if following 
+    HDFS-1057.  Concurrent readers hit ChecksumExceptions if following
     a writer to very end of file (Sam Rash via dhruba)
 
     HDFS-724.  Use a bidirectional heartbeat to detect stuck
@@ -428,25 +429,25 @@ Release 0.20.205.0 - 2011.10.06
     HDFS-1554. New semantics for recoverLease. (hairong)
 
     HADOOP-7596. Makes packaging of 64-bit jsvc possible. Has other
-    bug fixes to do with packaging. (Eric Yang via ddas) 
+    bug fixes to do with packaging. (Eric Yang via ddas)
 
     HDFS-2309. TestRenameWhileOpen fails. (jitendra)
 
     HDFS-2300. TestFileAppend4 and TestMultiThreadedSync failure. (jitendra)
 
-    HDFS-1122. client block verification may result in blocks in 
+    HDFS-1122. client block verification may result in blocks in
     DataBlockScanner prematurely. (Sam Rash via jitendra)
 
-    HADOOP-6722. NetUtils.connect should check that it hasn't connected a 
+    HADOOP-6722. NetUtils.connect should check that it hasn't connected a
     socket to itself. (Todd Lipcon via suresh)
 
-    HDFS-1779. After NameNode restart , Clients can not read partial files 
+    HDFS-1779. After NameNode restart , Clients can not read partial files
     even after client invokes Sync. (Uma Maheswara Rao G via jitendra)
 
-    HDFS-1197. Blocks are considered "complete" prematurely after 
+    HDFS-1197. Blocks are considered "complete" prematurely after
     commitBlockSynchronization or DN restart. (Todd Lipcon via jitendra)
 
-    HDFS-1218. Blocks recovered on startup should be treated with lower 
+    HDFS-1218. Blocks recovered on startup should be treated with lower
     priority during block synchronization. (Todd Lipcon via suresh)
 
     HDFS-1186. DNs should interrupt writers at start of recovery.
@@ -461,9 +462,9 @@ Release 0.20.205.0 - 2011.10.06
     HADOOP-7626. Bugfix for a config generator (Eric Yang via ddas)
 
     MAPREDUCE-2549. Fix resource leaks in Eclipse plugin. (Devaraj K via
-    acmurthy) 
+    acmurthy)
 
-    HDFS-2328. HFTP throws NPE if security is enabled locally, but not 
+    HDFS-2328. HFTP throws NPE if security is enabled locally, but not
     remotely. (omalley)
 
     HDFS-2331. Fix WebHdfsFileSystem compilation problems for a bug in JDK
@@ -481,10 +482,10 @@ Release 0.20.205.0 - 2011.10.06
     HADOOP-7644. Fix TestDelegationTokenRenewal and TestDelegationTokenFetcher
     to use and test the new style renewers. (omalley)
 
-    HADOOP-7637. Fix to include FairScheduler configuration file in 
+    HADOOP-7637. Fix to include FairScheduler configuration file in
     RPM. (Eric Yang via ddas)
 
-    HADOOP-7633. Adds log4j.properties to the hadoop-conf dir on 
+    HADOOP-7633. Adds log4j.properties to the hadoop-conf dir on
     deploy (Eric Yang via ddas)
 
     HADOOP-7631. Fixes a config problem to do with running streaming jobs
@@ -494,17 +495,17 @@ Release 0.20.205.0 - 2011.10.06
     *.period set to a default value. (Eric Yang via ddas)
 
     HADOOP-7615. Fixes to have contrib jars in the HADOOP_CLASSPATH
-    for the binary layout case. (Eric Yang via ddas) 
+    for the binary layout case. (Eric Yang via ddas)
 
-    HADOOP-7661. FileSystem.getCanonicalServiceName throws NPE for any 
+    HADOOP-7661. FileSystem.getCanonicalServiceName throws NPE for any
     file system uri that doesn't have an authority. (jitendra)
 
-    HADOOP-7649. TestMapredGroupMappingServiceRefresh and 
+    HADOOP-7649. TestMapredGroupMappingServiceRefresh and
     TestRefreshUserMappings fail after HADOOP-7625. (jitendra)
 
     MAPREDUCE-3076. Annotate o.a.h.mapreduce.TestSleepJob with @Ignore since it
     is not a junit test.  (acmurthy via szetszwo)
-    
+
     HADOOP-7658. Fix hadoop config template for secured and unsecured
     installation (Eric Yang via gkesavan)
 
@@ -526,7 +527,7 @@ Release 0.20.205.0 - 2011.10.06
 
     HDFS-2375. Fix TestFileAppend4 failure. (suresh)
 
-    HDFS-2373. Commands using WebHDFS and hftp print unnecessary debug 
+    HDFS-2373. Commands using WebHDFS and hftp print unnecessary debug
     info on the console with security enabled. (Arpit Gupta via suresh)
 
     HADOOP-7610. Fix for hadoop debian package (Eric Yang via gkesavan)
@@ -541,7 +542,7 @@ Release 0.20.205.0 - 2011.10.06
     HDFS-2408. DFSClient#getNumCurrentReplicas is package private in 205 but
                public in branch-0.20-append (stack via atm)
 
-    HADOOP-7721. dfs.web.authentication.kerberos.principal expects the full 
+    HADOOP-7721. dfs.web.authentication.kerberos.principal expects the full
     hostname and does not replace _HOST with the hostname. (jitendra)
 
     HDFS-2403. NamenodeWebHdfsMethods.generateDelegationToken(..) does not use
@@ -550,7 +551,7 @@ Release 0.20.205.0 - 2011.10.06
     HADOOP-7724. Fixed hadoop-setup-conf.sh to put proxy user in
     core-site.xml.  (Arpit Gupta via Eric Yang)
 
-    HDFS-2411. With WebHDFS enabled in secure mode the auth to local mappings 
+    HDFS-2411. With WebHDFS enabled in secure mode the auth to local mappings
     are not being respected. (jitendra)
 
     HADOOP-7676. Enable hbase to run as hdfs user (gkesavan)
@@ -563,7 +564,7 @@ Release 0.20.205.0 - 2011.10.06
     cluster. (Arpit Gupta via mattf)
 
     MAPREDUCE-2187. Reporter sends progress during sort/merge. (Anupam Seth via
-    acmurthy) 
+    acmurthy)
 
     MAPREDUCE-2705. Implements launch of multiple tasks concurrently.
     (Thomas Graves via ddas)
@@ -580,19 +581,19 @@ Release 0.20.205.0 - 2011.10.06
     HADOOP-7314. Add support for throwing UnknownHostException when a host
     doesn't resolve. Needed for MAPREDUCE-2489. (Jeffrey Naisbitt via mattf)
 
-    MAPREDUCE-2494. Make the distributed cache delete entires using LRU 
+    MAPREDUCE-2494. Make the distributed cache delete entires using LRU
     priority (Robert Joseph Evans via mahadev)
 
-    HADOOP-6889. Make RPC to have an option to timeout - backport to 
+    HADOOP-6889. Make RPC to have an option to timeout - backport to
     0.20-security. Unit tests updated to 17/Aug/2011 version.
     (John George and Ravi Prakash via mattf)
 
-    MAPREDUCE-2780. Use a utility method to set service in token. 
+    MAPREDUCE-2780. Use a utility method to set service in token.
     (Daryn Sharp via jitendra)
 
     HADOOP-7472. RPC client should deal with IP address change.
     (Kihwal Lee via suresh)
-  
+
     MAPREDUCE-2489. Jobsplits with random hostnames can make the queue unusable
     (Jeffrey Naisbit via mahadev)
 
@@ -600,16 +601,16 @@ Release 0.20.205.0 - 2011.10.06
 
     HDFS-1210. DFSClient should log exception when block recovery fails.
     (Todd Lipcon via dhruba)
- 
+
     HDFS-1211. Block receiver should not log "rewind" packets at INFO level.
     (Todd Lipcon)
 
     HDFS-1164. TestHdfsProxy is failing. (Todd Lipcon)
 
-    HDFS-1202. DataBlockScanner throws NPE when updated before initialized. 
+    HDFS-1202. DataBlockScanner throws NPE when updated before initialized.
     (Todd Lipcon)
 
-    HADOOP-7539. merge hadoop archive goodness from trunk to .20 (John George 
+    HADOOP-7539. merge hadoop archive goodness from trunk to .20 (John George
     via mahadev)
 
     HADOOP-7594. Support HTTP REST in HttpServer.  (szetszwo)
@@ -620,16 +621,16 @@ Release 0.20.205.0 - 2011.10.06
     HDFS-2320. Make 0.20-append protocol changes compatible with
     0.20-secuirty. (suresh)
 
-    MAPREDUCE-2610. Make QueueAclsInfo public. (Joep Rottinghuis via acmurthy) 
+    MAPREDUCE-2610. Make QueueAclsInfo public. (Joep Rottinghuis via acmurthy)
 
     MAPREDUCE-2915. Ensure LTC passes java.library.path. (Kihwal Lee via
-    acmurthy) 
+    acmurthy)
 
-    HADOOP-7599. Script improvements to setup a secure Hadoop cluster 
+    HADOOP-7599. Script improvements to setup a secure Hadoop cluster
     (Eric Yang via ddas)
 
     MAPREDUCE-2981. Backport FairScheduler from trunk. (Matei Zaharia via
-    acmurthy) 
+    acmurthy)
 
     MAPREDUCE-1734. Undeprecate old API in branch-0.20-security. (Todd Lipcon
     via acmurthy)
@@ -643,7 +644,7 @@ Release 0.20.205.0 - 2011.10.06
     HDFS-2368.  Move SPNEGO conf properties from hdfs-default.xml to
     hdfs-site.xml.  (szetszwo)
 
-    HADOOP-7710. Added hadoop-setup-application.sh for creating 
+    HADOOP-7710. Added hadoop-setup-application.sh for creating
     application directory (Arpit Gupta via Eric Yang)
 
     HADOOP-7708. Fixed hadoop-setup-conf.sh to handle config file
@@ -680,19 +681,19 @@ Release 0.20.204.0 - 2011-8-25
     MAPREDUCE-2651. Fix race condition in Linux task controller for
     job log directory creation. (Bharath Mundlapudi via llu)
 
-    MAPREDUCE-2621. TestCapacityScheduler fails with "Queue "q1" does not 
+    MAPREDUCE-2621. TestCapacityScheduler fails with "Queue "q1" does not
     exist". (Sherry Chen via mahadev)
 
     HADOOP-7475. Fix hadoop-setup-single-node.sh to reflect new layout. (eyang
     via omalley)
 
-    HADOOP-7045. TestDU fails on systems with local file systems with 
+    HADOOP-7045. TestDU fails on systems with local file systems with
     extended attributes. (eli)
 
     MAPREDUCE-2495. exit() the TaskTracker when the distributed cache cleanup
     thread dies. (Robert Joseph Evans via cdouglas)
 
-    HDFS-1878. TestHDFSServerPorts unit test failure - race condition 
+    HDFS-1878. TestHDFSServerPorts unit test failure - race condition
     in FSNamesystem.close() causes NullPointerException without serious
     consequence. (mattf)
 
@@ -712,7 +713,7 @@ Release 0.20.204.0 - 2011-8-25
     failed fetch notifications in the JobTracker log.
     (Jeffrey Naisbitt via cdouglas)
 
-    HDFS-2044. TestQueueProcessingStatistics failing automatic test due to 
+    HDFS-2044. TestQueueProcessingStatistics failing automatic test due to
     timing issues. (mattf)
 
     HADOOP-7248. Update eclipse target to generate .classpath from ivy config.
@@ -720,8 +721,8 @@ Release 0.20.204.0 - 2011-8-25
 
     MAPREDUCE-2558. Add queue-level metrics 0.20-security branch (test fixes)
     (Jeffrey Naisbitt via mahadev)
-    
-    HADOOP-7364. TestMiniMRDFSCaching fails if test.build.dir is set to 
+
+    HADOOP-7364. TestMiniMRDFSCaching fails if test.build.dir is set to
     something other than build/test. (Thomas Graves via mahadev)
 
     HADOOP-7277. Add generation of run configurations to eclipse target.
@@ -751,13 +752,13 @@ Release 0.20.204.0 - 2011-8-25
     diagnosis of related issues. (Jonathan Eagles via cdouglas)
 
     MAPREDUCE-2447. Fix Child.java to set Task.jvmContext sooner to avoid
-    corner cases in error handling. (Siddharth Seth via acmurthy) 
+    corner cases in error handling. (Siddharth Seth via acmurthy)
 
     MAPREDUCE-2429. Validate JVM in TaskUmbilicalProtocol. (Siddharth Seth via
-    acmurthy) 
+    acmurthy)
 
     MAPREDUCE-2418. Show job errors in JobHistory page. (Siddharth Seth via
-    acmurthy) 
+    acmurthy)
 
     HDFS-1592. At Startup, Valid volumes required in FSDataset doesn't
     handle consistently with volumes tolerated. (Bharath Mundlapudi)
@@ -777,22 +778,22 @@ Release 0.20.204.0 - 2011-8-25
     MAPREDUCE-2409. Distinguish distributed cache artifacts localized as
     files, archives. (Siddharth Seth via cdouglas)
 
-    MAPREDUCE-118. Fix Job.getJobID() to get the new ID as soon as it's 
+    MAPREDUCE-118. Fix Job.getJobID() to get the new ID as soon as it's
     assigned. (Amareshwari Sriramadasu and Dick King via cdouglas)
 
     MAPREDUCE-2411. Force an exception when the queue has an invalid name or
     its ACLs are misconfigured. (Dick King via cdouglas)
 
-    HDFS-1258. Clearing namespace quota on "/" corrupts fs image.  
+    HDFS-1258. Clearing namespace quota on "/" corrupts fs image.
     (Aaron T. Myers via szetszwo)
 
     HDFS-1189. Quota counts missed between clear quota and set quota.
     (John George via szetszwo)
 
-    HDFS-1692. In secure mode, Datanode process doesn't exit when disks 
+    HDFS-1692. In secure mode, Datanode process doesn't exit when disks
     fail. (bharathm via boryas)
 
-    MAPREDUCE-2420. JobTracker should be able to renew delegation token 
+    MAPREDUCE-2420. JobTracker should be able to renew delegation token
     over HTTP (boryas)
 
     MAPREDUCE-2443. Fix TaskAspect for TaskUmbilicalProtocol.ping(..).
@@ -807,9 +808,9 @@ Release 0.20.204.0 - 2011-8-25
     HDFS-2057. Wait time to terminate the threads causes unit tests to
     take longer time. (Bharath Mundlapudi via suresh)
 
-    HDFS-2218. Disable TestHdfsProxy.testHdfsProxyInterface in automated test 
+    HDFS-2218. Disable TestHdfsProxy.testHdfsProxyInterface in automated test
     suite for 0.20-security-204 release. (Matt Foley)
-    
+
   IMPROVEMENTS
 
     HADOOP-7144. Expose JMX metrics via JSON servlet. (Robert Joseph Evans via
@@ -831,7 +832,7 @@ Release 0.20.204.0 - 2011-8-25
     MAPREDUCE-2415. Distribute the user task logs on to multiple disks.
     (Bharath Mundlapudi via omalley)
 
-    MAPREDUCE-2413. TaskTracker should handle disk failures by reinitializing 
+    MAPREDUCE-2413. TaskTracker should handle disk failures by reinitializing
     itself. (Ravi Gummadi and Jagane Sundar via omalley)
 
     HDFS-1541. Not marking datanodes dead when namenode in safemode.
@@ -844,7 +845,7 @@ Release 0.20.204.0 - 2011-8-25
 
     HADOOP-7459. Remove jdk-1.6.0 dependency check from rpm. (omalley)
 
-    HADOOP-7330. Fix MetricsSourceAdapter to use the value instead of the 
+    HADOOP-7330. Fix MetricsSourceAdapter to use the value instead of the
     object. (Luke Lu via omalley)
 
 Release 0.20.203.0 - 2011-5-11
@@ -865,46 +866,46 @@ Release 0.20.203.0 - 2011-5-11
 
     HADOOP-7143. Restore HadoopArchives. (Joep Rottinghuis via omalley)
 
-    MAPREDUCE-2316. Updated CapacityScheduler documentation. (acmurthy) 
+    MAPREDUCE-2316. Updated CapacityScheduler documentation. (acmurthy)
 
     HADOOP-7243. Fix contrib unit tests missing dependencies. (omalley)
 
     HADOOP-7190. Add metrics v1 back for backwards compatibility. (omalley)
 
-    MAPREDUCE-2360. Remove stripping of scheme, authority from submit dir in 
+    MAPREDUCE-2360. Remove stripping of scheme, authority from submit dir in
     support of viewfs. (cdouglas)
-    
+
     MAPREDUCE-2359 Use correct file system to access distributed cache objects.
     (Krishna Ramachandran)
- 
+
     MAPREDUCE-2361. "Fix Distributed Cache is not adding files to class paths
     correctly" - Drop the host/scheme/fragment from URI (cdouglas)
 
     MAPREDUCE-2362. Fix unit-test failures: TestBadRecords (NPE due to
     rearranged MapTask code) and TestTaskTrackerMemoryManager
-    (need hostname in output-string pattern). (Greg Roelofs, Krishna 
+    (need hostname in output-string pattern). (Greg Roelofs, Krishna
     Ramachandran)
 
     HDFS-1729. Add statistics logging for better visibility into
     startup time costs. (Matt Foley)
 
-    MAPREDUCE-2363.  When a queue is built without any access rights we 
+    MAPREDUCE-2363.  When a queue is built without any access rights we
     explain the problem.  (Richard King)
 
-    MAPREDUCE-1563. TaskDiagnosticInfo may be missed sometime. (Krishna 
+    MAPREDUCE-1563. TaskDiagnosticInfo may be missed sometime. (Krishna
     Ramachandran)
 
     MAPREDUCE-2364. Don't hold the rjob lock while localizing resources. (ddas
     via omalley)
 
-    MAPREDUCE-2365. New counters for FileInputFormat (BYTES_READ) and 
-    FileOutputFormat (BYTES_WRITTEN). 
+    MAPREDUCE-2365. New counters for FileInputFormat (BYTES_READ) and
+    FileOutputFormat (BYTES_WRITTEN).
     New counter MAP_OUTPUT_MATERIALIZED_BYTES for compressed MapOutputSize.
     (Siddharth Seth)
 
     HADOOP-7040. Change DiskErrorException to IOException (boryas)
 
-    HADOOP-7104. Remove unnecessary DNS reverse lookups from RPC layer 
+    HADOOP-7104. Remove unnecessary DNS reverse lookups from RPC layer
     (kzhang)
 
     MAPREDUCE-2366.  Fix a problem where the task browser UI can't retrieve the
@@ -919,7 +920,7 @@ Release 0.20.203.0 - 2011-5-11
     HADOOP-6879. Provide SSH based (Jsch) remote execution API for system
     tests. (cos)
 
-    HADOOP-7215. RPC clients must use network interface corresponding to 
+    HADOOP-7215. RPC clients must use network interface corresponding to
     the host in the client's kerberos principal key. (suresh)
 
     HADOOP-7232. Fix Javadoc warnings. (omalley)
@@ -928,14 +929,14 @@ Release 0.20.203.0 - 2011-5-11
 
 Release 0.20.202.0 - unreleased
 
-    MAPREDUCE-2355. Add a configuration knob 
+    MAPREDUCE-2355. Add a configuration knob
     mapreduce.tasktracker.outofband.heartbeat.damper that limits out of band
     heartbeats (acmurthy)
 
-    MAPREDUCE-2356. Fix a race-condition that corrupted a task's state on the 
+    MAPREDUCE-2356. Fix a race-condition that corrupted a task's state on the
     JobTracker. (Luke Lu)
 
-    MAPREDUCE-2357. Always propagate IOExceptions that are thrown by 
+    MAPREDUCE-2357. Always propagate IOExceptions that are thrown by
     non-FileInputFormat. (Luke Lu)
 
     HADOOP-7163. RPC handles SocketTimeOutException during SASL negotiation.
@@ -944,15 +945,15 @@ Release 0.20.202.0 - unreleased
     MAPREDUCE-2358. MapReduce assumes the default FileSystem is HDFS.
     (Krishna Ramachandran)
 
-    MAPREDUCE-1904. Reducing locking contention in TaskTracker's 
+    MAPREDUCE-1904. Reducing locking contention in TaskTracker's
     MapOutputServlet LocalDirAllocator. (Rajesh Balamohan via acmurthy)
 
     HDFS-1626. Make BLOCK_INVALIDATE_LIMIT configurable. (szetszwo)
 
-    HDFS-1584. Adds a check for whether relogin is needed to 
+    HDFS-1584. Adds a check for whether relogin is needed to
     getDelegationToken in HftpFileSystem. (Kan Zhang via ddas)
 
-    HADOOP-7115. Reduces the number of calls to getpwuid_r and 
+    HADOOP-7115. Reduces the number of calls to getpwuid_r and
     getpwgid_r, by implementing a cache in NativeIO. (ddas)
 
     HADOOP-6882. An XSS security exploit in jetty-6.1.14. jetty upgraded to
@@ -963,15 +964,15 @@ Release 0.20.202.0 - unreleased
     HDFS-1353 redux. Modulate original 1353  to not bump RPC version.
     (jhoman)
 
-    MAPREDUCE-2082 Race condition in writing the jobtoken password file when 
+    MAPREDUCE-2082 Race condition in writing the jobtoken password file when
     launching pipes jobs (jitendra and ddas)
-                
-    HADOOP-6978. Fixes task log servlet vulnerabilities via symlinks. 
+
+    HADOOP-6978. Fixes task log servlet vulnerabilities via symlinks.
     (Todd Lipcon and Devaraj Das)
 
-    MAPREDUCE-2178. Write task initialization to avoid race 
-    conditions leading to privilege escalation and resource leakage by 
-    performing more actiions as the user. (Owen O'Malley, Devaraj Das, 
+    MAPREDUCE-2178. Write task initialization to avoid race
+    conditions leading to privilege escalation and resource leakage by
+    performing more actiions as the user. (Owen O'Malley, Devaraj Das,
     Chris Douglas via cdouglas)
 
     HDFS-1364. HFTP client should support relogin from keytab
@@ -979,16 +980,16 @@ Release 0.20.202.0 - unreleased
     HADOOP-6907. Make RPC client to use per-proxy configuration.
     (Kan Zhang via ddas)
 
-    MAPREDUCE-2055. Fix JobTracker to decouple job retirement from copy of 
-    job-history file to HDFS and enhance RetiredJobInfo to carry aggregated 
-    job-counters to prevent a disk roundtrip on job-completion to fetch 
+    MAPREDUCE-2055. Fix JobTracker to decouple job retirement from copy of
+    job-history file to HDFS and enhance RetiredJobInfo to carry aggregated
+    job-counters to prevent a disk roundtrip on job-completion to fetch
     counters for the JobClient. (Krishna Ramachandran via acmurthy)
-                
+
     HDFS-1353. Remove most of getBlockLocation optimization (jghoman)
 
     MAPREDUCE-2023. TestDFSIO read test may not read specified bytes. (htang)
 
-    HDFS-1340. A null delegation token is appended to the url if security is 
+    HDFS-1340. A null delegation token is appended to the url if security is
     disabled when browsing filesystem.(boryas)
 
     HDFS-1352. Fix jsvc.location. (jghoman)
@@ -1006,7 +1007,7 @@ Release 0.20.202.0 - unreleased
     HADOOP-6899. RawLocalFileSystem set working directory does
     not work for relative names. (suresh)
 
-    HDFS-495. New clients should be able to take over files lease if the old 
+    HDFS-495. New clients should be able to take over files lease if the old
     client died. (shv)
 
     HADOOP-6728. Re-design and overhaul of the Metrics framework. (Luke Lu via
@@ -1019,13 +1020,13 @@ Release 0.20.202.0 - unreleased
     HADOOP-6864. Add ability to get netgroups (as returned by getent
     netgroup command) using native code (JNI) instead of forking. (Erik Steffl)
 
-    HDFS-1318. HDFS Namenode and Datanode WebUI information needs to be 
+    HDFS-1318. HDFS Namenode and Datanode WebUI information needs to be
     accessible programmatically for scripts. (Tanping Wang via suresh)
 
-    HDFS-1315. Add fsck event to audit log and remove other audit log events 
+    HDFS-1315. Add fsck event to audit log and remove other audit log events
     corresponding to FSCK listStatus and open calls. (suresh)
 
-    MAPREDUCE-1941. Provides access to JobHistory file (raw) with job user/acl 
+    MAPREDUCE-1941. Provides access to JobHistory file (raw) with job user/acl
     permission. (Srikanth Sundarrajan via ddas)
 
     MAPREDUCE-291. Optionally a separate daemon should serve JobHistory.
@@ -1049,34 +1050,34 @@ Release 0.20.202.0 - unreleased
 
     HDFS-457. Reintroduce volume failure tolerance for DataNodes. (shv)
 
-    HDFS-1307 Add start time, end time and total time taken for FSCK 
+    HDFS-1307 Add start time, end time and total time taken for FSCK
     to FSCK report. (suresh)
 
-    MAPREDUCE-1207. Sanitize user environment of map/reduce tasks and allow 
+    MAPREDUCE-1207. Sanitize user environment of map/reduce tasks and allow
     admins to set environment and java options. (Krishna Ramachandran via
-    acmurthy) 
+    acmurthy)
 
     HDFS-1298 - Add support in HDFS for new statistics added in FileSystem
     to track the file system operations (suresh)
 
-    HDFS-1301. TestHDFSProxy need to use server side conf for ProxyUser  
+    HDFS-1301. TestHDFSProxy need to use server side conf for ProxyUser
     stuff.(boryas)
 
-    HADOOP-6859 - Introduce additional statistics to FileSystem to track 
+    HADOOP-6859 - Introduce additional statistics to FileSystem to track
     file system operations (suresh)
 
-    HADOOP-6818. Provides a JNI implementation of Unix Group resolution. The 
-    config hadoop.security.group.mapping should be set to 
+    HADOOP-6818. Provides a JNI implementation of Unix Group resolution. The
+    config hadoop.security.group.mapping should be set to
     org.apache.hadoop.security.JniBasedUnixGroupsMapping to enable this
     implementation. (ddas)
 
     MAPREDUCE-1938. Introduces a configuration for putting user classes before
     the system classes during job submission and in task launches. Two things
-    need to be done in order to use this feature - 
-    (1) mapreduce.user.classpath.first : this should be set to true in the 
-    jobconf, and, (2) HADOOP_USER_CLASSPATH_FIRST : this is relevant for job 
+    need to be done in order to use this feature -
+    (1) mapreduce.user.classpath.first : this should be set to true in the
+    jobconf, and, (2) HADOOP_USER_CLASSPATH_FIRST : this is relevant for job
     submissions done using bin/hadoop shell script. HADOOP_USER_CLASSPATH_FIRST
-    should be defined in the environment with some non-empty value 
+    should be defined in the environment with some non-empty value
     (like "true"), and then bin/hadoop should be executed. (ddas)
 
     HADOOP-6669. Respect compression configuration when creating DefaultCodec
@@ -1092,23 +1093,23 @@ Release 0.20.202.0 - unreleased
     done while replaying edits during startup. (shv)
 
     MAPREDUCE-1521. Protection against incorrectly configured reduces
-    (mahadev) 
+    (mahadev)
 
     MAPREDUCE-1936. Make Gridmix3 more customizable. (htang)
 
     MAPREDUCE-517. Enhance the CapacityScheduler to assign multiple tasks
-    per-heartbeat. (acmurthy) 
+    per-heartbeat. (acmurthy)
 
-    MAPREDUCE-323. Re-factor layout of JobHistory files on HDFS to improve 
-    operability. (Dick King via acmurthy) 
+    MAPREDUCE-323. Re-factor layout of JobHistory files on HDFS to improve
+    operability. (Dick King via acmurthy)
 
     MAPREDUCE-1921. Ensure exceptions during reading of input data in map
     tasks are augmented by information about actual input file which caused
-    the exception. (Krishna Ramachandran via acmurthy)  
+    the exception. (Krishna Ramachandran via acmurthy)
 
     MAPREDUCE-1118. Enhance the JobTracker web-ui to ensure tabular columns
     are sortable, also added a /scheduler servlet to CapacityScheduler for
-    enhanced UI for queue information. (Krishna Ramachandran via acmurthy) 
+    enhanced UI for queue information. (Krishna Ramachandran via acmurthy)
 
     HADOOP-5913. Add support for starting/stopping queues. (cdouglas)
 
@@ -1130,7 +1131,7 @@ Release 0.20.202.0 - unreleased
     HDFS-1250. Namenode should reject block reports and block received
     requests from dead datanodes (suresh)
 
-    MAPREDUCE-1863. [Rumen] Null failedMapAttemptCDFs in job traces generated 
+    MAPREDUCE-1863. [Rumen] Null failedMapAttemptCDFs in job traces generated
     by Rumen. (htang)
 
     MAPREDUCE-1309. Rumen refactory. (htang)
@@ -1144,23 +1145,23 @@ Release 0.20.202.0 - unreleased
     MAPREDUCE-787. Fix JobSubmitter to honor user given symlink in the path.
     (amareshwari)
 
-    HADOOP-6815. refreshSuperUserGroupsConfiguration should use 
+    HADOOP-6815. refreshSuperUserGroupsConfiguration should use
     server side configuration for the refresh( boryas)
 
     MAPREDUCE-1868. Add a read and connection timeout to JobClient while
-    pulling tasklogs. (Krishna Ramachandran via acmurthy)   
+    pulling tasklogs. (Krishna Ramachandran via acmurthy)
 
     HDFS-1119. Introduce a GSet interface to BlocksMap.  (szetszwo)
 
     MAPREDUCE-1778. Ensure failure to setup CompletedJobStatusStore is not
-    silently ignored by the JobTracker. (Krishna Ramachandran via acmurthy)  
+    silently ignored by the JobTracker. (Krishna Ramachandran via acmurthy)
 
     MAPREDUCE-1538. Add a limit on the number of artifacts in the
     DistributedCache to ensure we cleanup aggressively. (Dick King via
-    acmurthy) 
+    acmurthy)
 
     MAPREDUCE-1850. Add information about the host from which a job is
-    submitted. (Krishna Ramachandran via acmurthy) 
+    submitted. (Krishna Ramachandran via acmurthy)
 
     HDFS-1110. Reuses objects for commonly used file names in namenode to
     reduce the heap usage. (suresh)
@@ -1190,14 +1191,14 @@ Release 0.20.202.0 - unreleased
     improvement. (Balaji Rajagopalan via cos)
 
     MAPREDUCE-1288. Fixes TrackerDistributedCacheManager to take into account
-    the owner of the localized file in the mapping from cache URIs to 
+    the owner of the localized file in the mapping from cache URIs to
     CacheStatus objects. (ddas)
-    
+
     MAPREDUCE-1682. Fix speculative execution to ensure tasks are not
-    scheduled after job failure. (acmurthy) 
+    scheduled after job failure. (acmurthy)
 
     MAPREDUCE-1914. Ensure unique sub-directories for artifacts in the
-    DistributedCache are cleaned up. (Dick King via acmurthy) 
+    DistributedCache are cleaned up. (Dick King via acmurthy)
 
     MAPREDUCE-1538. Add a limit on the number of artifacts in the
     DistributedCache to ensure we cleanup aggressively. (Dick King via
@@ -1216,7 +1217,7 @@ Release 0.20.202.0 - unreleased
     with handling of null hostname. (omalley)
 
     HDFS-1007. makes long running servers using hftp work. Also has some
-    refactoring in the MR code to do with handling of delegation tokens. 
+    refactoring in the MR code to do with handling of delegation tokens.
     (omalley & ddas)
 
     HDFS-1178. The NameNode servlets should not use RPC to connect to the
@@ -1237,29 +1238,29 @@ Release 0.20.202.0 - unreleased
 
     HDFS-1150. Bugfix in the hadoop shell script. (ddas)
 
-    HDFS-1153. The navigation to /dfsnodelist.jsp with invalid input 
+    HDFS-1153. The navigation to /dfsnodelist.jsp with invalid input
     parameters produces NPE and HTTP 500 error (rphulari)
-    
+
     MAPREDUCE-1664. Bugfix to enable queue administrators of a queue to
     view job details of jobs submitted to that queue even though they
-    are not part of acl-view-job. 
+    are not part of acl-view-job.
 
     HDFS-1150. Bugfix to add more knobs to secure datanode starter.
 
     HDFS-1157. Modifications introduced by HDFS-1150 are breaking aspect's
     bindings (cos)
 
-    HDFS-1130. Adds a configuration dfs.cluster.administrators for 
+    HDFS-1130. Adds a configuration dfs.cluster.administrators for
     controlling access to the default servlets in hdfs. (ddas)
 
-    HADOOP-6706.FIX. Relogin behavior for RPC clients could be improved 
+    HADOOP-6706.FIX. Relogin behavior for RPC clients could be improved
     (boryas)
 
     HDFS-1150. Verify datanodes' identities to clients in secure clusters.
     (jghoman)
 
     MAPREDUCE-1442. Fixed regex in job-history related to parsing Counter
-    values. (Luke Lu via acmurthy)  
+    values. (Luke Lu via acmurthy)
 
     HADOOP-6760. WebServer shouldn't increase port number in case of negative
     port setting caused by Jetty's race. (cos)
@@ -1271,7 +1272,7 @@ Release 0.20.202.0 - unreleased
     on a SASL connection failure, and retries again with a new
     connection. (ddas)
 
-    MAPREDUCE-1716. Fix on top of earlier patch for logs truncation a.k.a 
+    MAPREDUCE-1716. Fix on top of earlier patch for logs truncation a.k.a
     MAPREDUCE-1100. Addresses log truncation issues when binary data is
     written to log files and adds a header to a truncated log file to
     inform users of the done trucation.
@@ -1279,14 +1280,14 @@ Release 0.20.202.0 - unreleased
     HDFS-1383. Improve the error messages when using hftp://.
 
     MAPREDUCE-1744. Fixed DistributedCache apis to take a user-supplied
-    FileSystem to allow for better proxy behaviour for Oozie. (Richard King) 
+    FileSystem to allow for better proxy behaviour for Oozie. (Richard King)
 
-    MAPREDUCE-1733. Authentication between pipes processes and java 
+    MAPREDUCE-1733. Authentication between pipes processes and java
     counterparts. (jitendra)
 
     MAPREDUCE-1664. Bugfix on top of the previous patch. (ddas)
 
-    HDFS-1136. FileChecksumServlets.RedirectServlet doesn't carry forward 
+    HDFS-1136. FileChecksumServlets.RedirectServlet doesn't carry forward
     the delegation token (boryas)
 
     HADOOP-6756. Change value of FS_DEFAULT_NAME_KEY from fs.defaultFS
@@ -1309,7 +1310,7 @@ Release 0.20.202.0 - unreleased
 
     MAPREDUCE-1317. NPE in setHostName in Rumen. (rksingh)
 
-    MAPREDUCE-1754. Replace mapred.persmissions.supergroup with an acl : 
+    MAPREDUCE-1754. Replace mapred.persmissions.supergroup with an acl :
     mapreduce.cluster.administrators and HADOOP-6748.: Remove
     hadoop.cluster.administrators. Contributed by Amareshwari Sriramadasu.
 
@@ -1323,7 +1324,7 @@ Release 0.20.202.0 - unreleased
 
     HADOOP-6745. adding some java doc to Server.RpcMetrics, UGI (boryas)
 
-    MAPREDUCE-1707. TaskRunner can get NPE in getting ugi from TaskTracker. 
+    MAPREDUCE-1707. TaskRunner can get NPE in getting ugi from TaskTracker.
     (vinodkv)
 
     HDFS-1104. Fsck triggers full GC on NameNode. (hairong)
@@ -1347,10 +1348,10 @@ Release 0.20.202.0 - unreleased
 
     MAPREDUCE-1641. Bug-fix to ensure command line options such as
     -files/-archives are checked for duplicate artifacts in the
-    DistributedCache. (Amareshwari Sreeramadasu via acmurthy) 
+    DistributedCache. (Amareshwari Sreeramadasu via acmurthy)
 
     MAPREDUCE-1641. Fix DistributedCache to ensure same files cannot be put in
-    both the archives and files sections. (Richard King via acmurthy) 
+    both the archives and files sections. (Richard King via acmurthy)
 
     HADOOP-6670. Fixes a testcase issue introduced by the earlier commit
     of the HADOOP-6670 patch. (ddas)
@@ -1361,7 +1362,7 @@ Release 0.20.202.0 - unreleased
 
     HADOOP-6674. Fixes the earlier patch to handle pings correctly (ddas).
 
-    MAPREDUCE-1664. Job Acls affect when Queue Acls are set. 
+    MAPREDUCE-1664. Job Acls affect when Queue Acls are set.
     (Ravi Gummadi via vinodkv)
 
     HADOOP-6718. Fixes a problem to do with clients not closing RPC
@@ -1373,24 +1374,24 @@ Release 0.20.202.0 - unreleased
     HADOOP-6670. Use the UserGroupInformation's Subject as the criteria for
     equals and hashCode. (omalley)
 
-    HADOOP-6716. System won't start in non-secure mode when kerb5.conf 
+    HADOOP-6716. System won't start in non-secure mode when kerb5.conf
    (edu.mit.kerberos on Mac) is not present. (boryas)
 
-    MAPREDUCE-1607. Task controller may not set permissions for a 
-    task cleanup attempt's log directory. (Amareshwari Sreeramadasu via 
+    MAPREDUCE-1607. Task controller may not set permissions for a
+    task cleanup attempt's log directory. (Amareshwari Sreeramadasu via
     vinodkv)
 
-    MAPREDUCE-1533. JobTracker performance enhancements. (Amar Kamat via 
+    MAPREDUCE-1533. JobTracker performance enhancements. (Amar Kamat via
     vinodkv)
 
-    MAPREDUCE-1701.  AccessControlException while renewing a delegation token 
+    MAPREDUCE-1701.  AccessControlException while renewing a delegation token
     in not correctly handled in the JobTracker. (boryas)
 
     HDFS-481. Incremental patch to fix broken unit test in contrib/hdfsproxy
 
     HADOOP-6706. Fixes a bug in the earlier version of the same patch (ddas)
 
-    HDFS-1096. allow dfsadmin/mradmin refresh of superuser proxy group 
+    HDFS-1096. allow dfsadmin/mradmin refresh of superuser proxy group
     mappings(boryas).
 
     HDFS-1012. Support for cluster specific path entries in ldap for hdfsproxy
@@ -1399,7 +1400,7 @@ Release 0.20.202.0 - unreleased
     HDFS-1011. Improve Logging in HDFSProxy to include cluster name associated
     with the request (Srikanth Sundarrajan via Nicholas)
 
-    HDFS-1010. Retrieve group information from UnixUserGroupInformation 
+    HDFS-1010. Retrieve group information from UnixUserGroupInformation
     instead of LdapEntry (Srikanth Sundarrajan via Nicholas)
 
     HDFS-481. Bug fix - hdfsproxy: Stack overflow + Race conditions
@@ -1411,9 +1412,9 @@ Release 0.20.202.0 - unreleased
     MAPREDUCE-1692. Remove TestStreamedMerge from the streaming tests.
     (Amareshwari Sriramadasu and Sreekanth Ramakrishnan via vinodkv)
 
-    HDFS-1081. Performance regression in 
+    HDFS-1081. Performance regression in
     DistributedFileSystem::getFileBlockLocations in secure systems (jhoman)
-    
+
     MAPREDUCE-1656. JobStory should provide queue info. (htang)
 
     MAPREDUCE-1317. Reducing memory consumption of rumen objects. (htang)
@@ -1422,9 +1423,9 @@ Release 0.20.202.0 - unreleased
 
     MAPREDUCE-1683. Fixed jobtracker web-ui to correctly display heap-usage.
     (acmurthy)
-    
+
     HADOOP-6706. Fixes exception handling for saslConnect. The ideal
-    solution is to the Refreshable interface but as Owen noted in 
+    solution is to the Refreshable interface but as Owen noted in
     HADOOP-6656, it doesn't seem to work as expected. (ddas)
 
     MAPREDUCE-1617. TestBadRecords failed once in our test runs. (Amar
@@ -1443,19 +1444,19 @@ Release 0.20.202.0 - unreleased
     MAPREDUCE-1683.  Removes JNI calls to get jvm current/max heap usage in
     ClusterStatus by default. (acmurthy)
 
-    HADOOP-6687.  user object in the subject in UGI should be reused in case 
+    HADOOP-6687.  user object in the subject in UGI should be reused in case
     of a relogin. (jitendra)
 
-    HADOOP-5647. TestJobHistory fails if /tmp/_logs is not writable to. 
+    HADOOP-5647. TestJobHistory fails if /tmp/_logs is not writable to.
     Testcase should not depend on /tmp. (Ravi Gummadi via vinodkv)
 
-    MAPREDUCE-181. Bug fix for Secure job submission. (Ravi Gummadi via 
+    MAPREDUCE-181. Bug fix for Secure job submission. (Ravi Gummadi via
     vinodkv)
 
-    MAPREDUCE-1635. ResourceEstimator does not work after MAPREDUCE-842. 
+    MAPREDUCE-1635. ResourceEstimator does not work after MAPREDUCE-842.
     (Amareshwari Sriramadasu via vinodkv)
 
-    MAPREDUCE-1526. Cache the job related information while submitting the 
+    MAPREDUCE-1526. Cache the job related information while submitting the
     job. (rksingh)
 
     HADOOP-6674. Turn off SASL checksums for RPCs. (jitendra via omalley)
@@ -1468,17 +1469,17 @@ Release 0.20.202.0 - unreleased
     MAPREDUCE-1594. Support for SleepJobs in Gridmix (rksingh)
 
     HDFS-1007. Fix. ServiceName for delegation token for Hftp has hftp
-    port and not RPC port. 
-    
+    port and not RPC port.
+
     MAPREDUCE-1376. Support for varied user submissions in Gridmix (rksingh)
 
-    HDFS-1080.  SecondaryNameNode image transfer should use the defined 
+    HDFS-1080.  SecondaryNameNode image transfer should use the defined
     http address rather than local ip address (jhoman)
-    
+
     HADOOP-6661. User document for UserGroupInformation.doAs for secure
     impersonation. (jitendra)
 
-    MAPREDUCE-1624. Documents the job credentials and associated details 
+    MAPREDUCE-1624. Documents the job credentials and associated details
     to do with delegation tokens (ddas)
     HDFS-1036. Documentation for fetchdt for forrest (boryas)
     HDFS-1039. New patch on top of previous patch. Gets namenode address
@@ -1492,7 +1493,7 @@ Release 0.20.202.0 - unreleased
 
     HADOOP-6649. An error in the previous committed patch. (jitendra)
 
-    HADOOP-6652. ShellBasedUnixGroupsMapping shouldn't have a cache. 
+    HADOOP-6652. ShellBasedUnixGroupsMapping shouldn't have a cache.
     (ddas)
 
     HADOOP-6649. login object in UGI should be inside the subject
@@ -1507,16 +1508,16 @@ Release 0.20.202.0 - unreleased
     HADOOP-6632. Fix on JobTracker to reuse filesystem handles if possible.
     (ddas)
 
-    HADOOP-6647. balancer fails with "is not authorized for protocol 
+    HADOOP-6647. balancer fails with "is not authorized for protocol
     interface NamenodeProtocol" in secure environment (boryas)
 
-    MAPREDUCE-1612. job conf file is not accessible from job history 
+    MAPREDUCE-1612. job conf file is not accessible from job history
     web page. (Ravi Gummadi via vinodkv)
 
-    MAPREDUCE-1611. Refresh nodes and refresh queues doesnt work with 
+    MAPREDUCE-1611. Refresh nodes and refresh queues doesnt work with
     service authorization enabled. (Amar Kamat via vinodkv)
 
-    HADOOP-6644. util.Shell getGROUPS_FOR_USER_COMMAND method 
+    HADOOP-6644. util.Shell getGROUPS_FOR_USER_COMMAND method
    name - should use common naming convention (boryas)
 
     MAPREDUCE-1609. Fixes a problem with localization of job log
@@ -1534,25 +1535,25 @@ Release 0.20.202.0 - unreleased
 
     HADOOP-6634. AccessControlList uses full-principal names to verify acls
     causing queue-acls to fail (vinodkv)
-    
-    HADOOP-6642. Fix javac, javadoc, findbugs warnings. (chrisdo via acmurthy) 
 
-    HDFS-1044.  Cannot submit mapreduce job from secure client to 
+    HADOOP-6642. Fix javac, javadoc, findbugs warnings. (chrisdo via acmurthy)
+
+    HDFS-1044.  Cannot submit mapreduce job from secure client to
     unsecure sever. (boryas)
-    HADOOP-6638. try to relogin in a case of failed RPC connection 
-    (expired tgt) only in case the subject is loginUser or  
+    HADOOP-6638. try to relogin in a case of failed RPC connection
+    (expired tgt) only in case the subject is loginUser or
     proxyUgi.realUser. (boryas)
 
-    HADOOP-6632. Support for using different Kerberos keys for different 
+    HADOOP-6632. Support for using different Kerberos keys for different
     instances of Hadoop services. (jitendra)
 
-    HADOOP-6526. Need mapping from long principal names to local OS 
+    HADOOP-6526. Need mapping from long principal names to local OS
     user names. (jitendra)
 
     MAPREDUCE-1604. Update Forrest documentation for job authorization
     ACLs. (Amareshwari Sriramadasu via yhemanth)
 
-    HDFS-1045.  In secure clusters, re-login is necessary for https 
+    HDFS-1045.  In secure clusters, re-login is necessary for https
     clients before opening connections (jhoman)
 
     HADOOP-6603.  Addition to original patch to be explicit
@@ -1564,7 +1565,7 @@ Release 0.20.202.0 - unreleased
     MAPREDUCE-1606. Fixed occassinal timeout in TestJobACL. (Ravi Gummadi via
     acmurthy)
 
-   HADOOP-6633. normalize property names for JT/NN kerberos principal 
+   HADOOP-6633. normalize property names for JT/NN kerberos principal
     names in configuration. (boryas)
 
     HADOOP-6613. Changes the RPC server so that version is checked first
@@ -1588,10 +1589,10 @@ Release 0.20.202.0 - unreleased
     MAPREDUCE-1522. FileInputFormat may use the default FileSystem for the
     input path. (Tsz Wo (Nicholas), SZE via cdouglas)
 
-    HDFS-1036. In DelegationTokenFetch pass Configuration object so 
+    HDFS-1036. In DelegationTokenFetch pass Configuration object so
     getDefaultUri will work correctly.
 
-    HDFS-1038. In nn_browsedfscontent.jsp fetch delegation token only if 
+    HDFS-1038. In nn_browsedfscontent.jsp fetch delegation token only if
     security is enabled. (jitendra)
 
     HDFS-1036. in DelegationTokenFetch dfs.getURI returns no port (boryas)
@@ -1599,10 +1600,10 @@ Release 0.20.202.0 - unreleased
     HADOOP-6598. Verbose logging from the Group class (one more case)
     (boryas)
 
-    HADOOP-6627. Bad Connection to FS" message in FSShell should print 
+    HADOOP-6627. Bad Connection to FS" message in FSShell should print
     message from the exception (boryas)
 
-    HDFS-1033. In secure clusters, NN and SNN should verify that the remote 
+    HDFS-1033. In secure clusters, NN and SNN should verify that the remote
     principal during image and edits transfer (jhoman)
 
     HDFS-1005. Fixes a bug to do with calling the cross-realm API in Fsck
@@ -1612,7 +1613,7 @@ Release 0.20.202.0 - unreleased
     with non-deletable permissions are created within it.
     (Amar Kamat via yhemanth)
 
-    HDFS-1007. Fixes bugs to do with 20S cluster talking to 20 over 
+    HDFS-1007. Fixes bugs to do with 20S cluster talking to 20 over
     hftp (borya)
 
     MAPREDUCE:1566. Fixes bugs in the earlier patch. (ddas)
@@ -1628,8 +1629,8 @@ Release 0.20.202.0 - unreleased
     MAPREDUCE-1435. Add test cases to already committed patch for this
     jira, synchronizing changes with trunk. (yhemanth)
 
-    HADOOP-6612. Protocols RefreshUserToGroupMappingsProtocol and 
-    RefreshAuthorizationPolicyProtocol  authorization settings thru 
+    HADOOP-6612. Protocols RefreshUserToGroupMappingsProtocol and
+    RefreshAuthorizationPolicyProtocol  authorization settings thru
     KerberosInfo (boryas)
 
     MAPREDUCE-1566. Bugfix for tests on top of the earlier patch. (ddas)
@@ -1642,7 +1643,7 @@ Release 0.20.202.0 - unreleased
 
     HDFS-1023. Update to original patch to fix username (jhoman)
 
-    HDFS-814. Add an api to get the visible length of a 
+    HDFS-814. Add an api to get the visible length of a
     DFSDataInputStream. (hairong)
 
     HDFS-1023. Allow http server to start as regular user if https
@@ -1679,8 +1680,8 @@ Release 0.20.202.0 - unreleased
 
     HADOOP-6584. Fix javadoc warnings introduced by original HADOOP-6584
     patch (jhoman)
-    
-    HDFS-1017. browsedfs jsp should call JspHelper.getUGI rather than using 
+
+    HDFS-1017. browsedfs jsp should call JspHelper.getUGI rather than using
     createRemoteUser(). (jhoman)
 
     MAPREDUCE-899. Modified LinuxTaskController to check that task-controller
@@ -1699,7 +1700,7 @@ Release 0.20.202.0 - unreleased
 
     MAPREDUCE-1155. Just pulls out the TestStreamingExitStatus part of the
     patch from jira (that went to 0.22). (ddas)
- 
+
     HADOOP-6600. Fix for branch backport only. Comparing of user should use
     equals. (boryas).
 
@@ -1708,15 +1709,15 @@ Release 0.20.202.0 - unreleased
 
     HDFS-1007. Fixes a bug on top of the earlier patch. (ddas)
 
-    HDFS-1005. Fsck security. Makes it work over kerberized SSL (boryas and 
+    HDFS-1005. Fsck security. Makes it work over kerberized SSL (boryas and
     jhoman)
 
     HDFS-1007. Makes HFTP and Distcp use kerberized SSL. (ddas)
 
-    MAPREDUCE-1455. Fixes a testcase in the earlier patch. 
+    MAPREDUCE-1455. Fixes a testcase in the earlier patch.
     (Ravi Gummadi via ddas)
 
-    HDFS-992. Refactors block access token implementation to conform to the 
+    HDFS-992. Refactors block access token implementation to conform to the
     generic Token interface. (Kan Zhang via ddas)
 
     HADOOP-6584. Adds KrbSSL connector for jetty. (Jakob Homan via ddas)
@@ -1727,28 +1728,28 @@ Release 0.20.202.0 - unreleased
     HADOOP-6600,HDFS-1003,MAPREDUCE-1539. mechanism for authorization check
     for inter-server protocols(boryas)
 
-    HADOOP-6580,HDFS-993,MAPREDUCE-1516. UGI should contain authentication 
+    HADOOP-6580,HDFS-993,MAPREDUCE-1516. UGI should contain authentication
     method.
 
-    Namenode and JT should issue a delegation token only for kerberos 
+    Namenode and JT should issue a delegation token only for kerberos
     authenticated  clients. (jitendra)
 
     HDFS-984,HADOOP-6573,MAPREDUCE-1537. Delegation Tokens should be persisted
     in Namenode, and corresponding changes in common and mr. (jitendra)
 
-    HDFS-994. Provide methods for obtaining delegation token from Namenode for 
-    hftp and other uses. Incorporates HADOOP-6594: Update hdfs script to 
+    HDFS-994. Provide methods for obtaining delegation token from Namenode for
+    hftp and other uses. Incorporates HADOOP-6594: Update hdfs script to
     provide fetchdt tool. (jitendra)
 
     HADOOP-6586. Log authentication and authorization failures and successes
     (boryas)
 
-    HDFS-991. Allow use of delegation tokens to authenticate to the 
+    HDFS-991. Allow use of delegation tokens to authenticate to the
     HDFS servlets. (omalley)
 
-    HADOOP-1849. Add undocumented configuration parameter for per handler 
+    HADOOP-1849. Add undocumented configuration parameter for per handler
     call queue size in IPC Server. (shv)
-    
+
     HADOOP-6599. Split existing RpcMetrics with summary in RpcMetrics and
     details information in RpcDetailedMetrics. (suresh)
 
@@ -1761,7 +1762,7 @@ Release 0.20.202.0 - unreleased
     as the job submitter. Also, changes the renewal to maintain list of tokens
     to renew. (ddas)
 
-    HADOOP-6596. Add a version field to the seialization of the 
+    HADOOP-6596. Add a version field to the seialization of the
     AbstractDelegationTokenIdentifier. (omalley)
 
     HADOOP-5561. Add javadoc.maxmemory to build.xml to allow larger memory.
@@ -1776,11 +1777,11 @@ Release 0.20.202.0 - unreleased
     HDFS-999.Secondary namenode should login using kerberos if security
     is configured(boryas)
 
-    MAPREDUCE-1466. Added a private configuration variable 
-    mapreduce.input.num.files, to store number of input files 
+    MAPREDUCE-1466. Added a private configuration variable
+    mapreduce.input.num.files, to store number of input files
     being processed by M/R job. (Arun Murthy via yhemanth)
 
-    MAPREDUCE-1403. Save file-sizes of each of the artifacts in 
+    MAPREDUCE-1403. Save file-sizes of each of the artifacts in
     DistributedCache in the JobConf (Arun Murthy via yhemanth)
 
     HADOOP-6543. Fixes a compilation problem in the original commit. (ddas)
@@ -1788,7 +1789,7 @@ Release 0.20.202.0 - unreleased
     MAPREDUCE-1520. Moves a call to setWorkingDirectory in Child to within
     a doAs block. (Amareshwari Sriramadasu via ddas)
 
-    HADOOP-6543. Allows secure clients to talk to unsecure clusters. 
+    HADOOP-6543. Allows secure clients to talk to unsecure clusters.
     (Kan Zhang via ddas)
 
     MAPREDUCE-1505. Delays construction of the job client until it is really
@@ -1802,10 +1803,10 @@ Release 0.20.202.0 - unreleased
     HDFS-946. NameNode should not return full path name when lisitng a
     diretory or getting the status of a file. (hairong)
 
-    MAPREDUCE-1398. Fix TaskLauncher to stop waiting for slots on a TIP 
+    MAPREDUCE-1398. Fix TaskLauncher to stop waiting for slots on a TIP
     that is killed / failed. (Amareshwari Sriramadasu via yhemanth)
 
-    MAPREDUCE-1476. Fix the M/R framework to not call commit for special 
+    MAPREDUCE-1476. Fix the M/R framework to not call commit for special
     tasks like job setup/cleanup and task cleanup.
     (Amareshwari Sriramadasu via yhemanth)
 
@@ -1823,7 +1824,7 @@ Release 0.20.202.0 - unreleased
     MAPREDUCE-670. Creates ant target for 10 mins patch test build.
     (Jothi Padmanabhan via gkesavan)
 
-    MAPREDUCE-1430. JobTracker should be able to renew delegation tokens 
+    MAPREDUCE-1430. JobTracker should be able to renew delegation tokens
     for the jobs(boryas)
 
     HADOOP-6551, HDFS-986, MAPREDUCE-1503. Change API for tokens to throw
@@ -1831,7 +1832,7 @@ Release 0.20.202.0 - unreleased
 
     HADOOP-6545. Changes the Key for the FileSystem to be UGI. (ddas)
 
-    HADOOP-6572. Makes sure that SASL encryption and push to responder queue 
+    HADOOP-6572. Makes sure that SASL encryption and push to responder queue
     for the RPC response happens atomically. (Kan Zhang via ddas)
 
     HDFS-965. Split the HDFS TestDelegationToken into two tests, of which
@@ -1847,8 +1848,8 @@ Release 0.20.202.0 - unreleased
 
     MAPREDUCE-1026. Fixes a bug in the backport. (ddas)
 
-    HADOOP-6559. Makes the RPC client automatically re-login when the SASL 
-    connection setup fails. This is applicable to only keytab based logins. 
+    HADOOP-6559. Makes the RPC client automatically re-login when the SASL
+    connection setup fails. This is applicable to only keytab based logins.
     (ddas)
 
     HADOOP-2141. Backport changes made in the original JIRA to aid
@@ -1857,23 +1858,23 @@ Release 0.20.202.0 - unreleased
     HADOOP-6382.  Import the mavenizable pom file structure and adjust
     the build targets and bin scripts. (gkesvan via ltucker)
 
-    MAPREDUCE-1425. archive throws OutOfMemoryError (mahadev) 
+    MAPREDUCE-1425. archive throws OutOfMemoryError (mahadev)
 
     MAPREDUCE-1399. The archive command shows a null error message. (nicholas)
 
-    HADOOP-6552. Puts renewTGT=true and useTicketCache=true for the keytab 
+    HADOOP-6552. Puts renewTGT=true and useTicketCache=true for the keytab
     kerberos options. (ddas)
 
     MAPREDUCE-1433. Adds delegation token for MapReduce (ddas)
 
     HADOOP-4359. Fixes a bug in the earlier backport. (ddas)
 
-    HADOOP-6547, HDFS-949, MAPREDUCE-1470. Move Delegation token into Common 
-    so that we can use it for MapReduce also. It is a combined patch for 
+    HADOOP-6547, HDFS-949, MAPREDUCE-1470. Move Delegation token into Common
+    so that we can use it for MapReduce also. It is a combined patch for
     common, hdfs and mr. (jitendra)
 
-    HADOOP-6510,HDFS-935,MAPREDUCE-1464. Support for doAs to allow 
-    authenticated superuser to impersonate proxy users. It is a combined 
+    HADOOP-6510,HDFS-935,MAPREDUCE-1464. Support for doAs to allow
+    authenticated superuser to impersonate proxy users. It is a combined
     patch with compatible fixes in HDFS and MR. (jitendra)
 
     MAPREDUCE-1435. Fixes the way symlinks are handled when cleaning up
@@ -1881,27 +1882,27 @@ Release 0.20.202.0 - unreleased
 
     MAPREDUCE-6419. Fixes a bug in the backported patch. (ddas)
 
-    MAPREDUCE-1457. Fixes JobTracker to get the FileSystem object within 
+    MAPREDUCE-1457. Fixes JobTracker to get the FileSystem object within
     getStagingAreaDir within a privileged block. Fixes Child.java to use the
     appropriate UGIs while getting the TaskUmbilicalProtocol proxy and while
     executing the task. Contributed by Jakob Homan. (ddas)
 
     MAPREDUCE-1440. Replace the long user name in MapReduce with the local
-    name. (ddas) 
+    name. (ddas)
 
-    HADOOP-6419. Adds SASL based authentication to RPC. Also includes the 
-    MAPREDUCE-1335 and HDFS-933 patches. Contributed by Kan Zhang. 
+    HADOOP-6419. Adds SASL based authentication to RPC. Also includes the
+    MAPREDUCE-1335 and HDFS-933 patches. Contributed by Kan Zhang.
     (ddas)
- 
+
     HADOOP-6538. Sets hadoop.security.authentication to simple by default.
     (ddas)
 
-    HDFS-938.  Replace calls to UGI.getUserName() with 
+    HDFS-938.  Replace calls to UGI.getUserName() with
     UGI.getShortUserName()(boryas)
 
     HADOOP-6544. fix ivy settings to include JSON jackson.codehause.org
      libs for .20 (boryas)
-     
+
     HDFS-907. Add tests for getBlockLocations and totalLoad metrics. (rphulari)
 
     HADOOP-6204. Implementing aspects development and fault injeciton
@@ -1912,9 +1913,9 @@ Release 0.20.202.0 - unreleased
     the copying of files from the hdfs. (Devaraj Das vi boryas)
 
     MAPREDUCE-1383. Automates fetching of delegation tokens in File*Formats
-    Distributed Cache and Distcp. Also, provides a config 
-    mapreduce.job.hdfs-servers that the jobs can populate with a comma 
-    separated list of namenodes. The job client automatically fetches 
+    Distributed Cache and Distcp. Also, provides a config
+    mapreduce.job.hdfs-servers that the jobs can populate with a comma
+    separated list of namenodes. The job client automatically fetches
     delegation tokens from those namenodes.
 
     HADOOP-6337. Update FilterInitializer class to be more visible
@@ -1922,13 +1923,13 @@ Release 0.20.202.0 - unreleased
 
     HADOOP-6520. UGI should load tokens from the environment. (jitendra)
 
-    HADOOP-6517, HADOOP-6518. Ability to add/get tokens from 
+    HADOOP-6517, HADOOP-6518. Ability to add/get tokens from
     UserGroupInformation & Kerberos login in UGI should honor KRB5CCNAME
     (jitendra)
 
     HADOOP-6299. Reimplement the UserGroupInformation to use the OS
     specific and Kerberos JAAS login. (jhoman, ddas, oom)
-    
+
     HADOOP-6524. Contrib tests are failing Clover'ed build. (cos)
 
     MAPREDUCE-842. Fixing a bug in the earlier version of the patch
@@ -1938,14 +1939,14 @@ Release 0.20.202.0 - unreleased
     HDFS-919. Create test to validate the BlocksVerified metric (Gary Murry
     via cos)
 
-    MAPREDUCE-1186. Modified code in distributed cache to set 
+    MAPREDUCE-1186. Modified code in distributed cache to set
     permissions only on required set of localized paths.
     (Amareshwari Sriramadasu via yhemanth)
 
     HDFS-899. Delegation Token Implementation. (Jitendra Nath Pandey)
 
-    MAPREDUCE-896. Enhance tasktracker to cleanup files that might have 
-    been created by user tasks with non-writable permissions. 
+    MAPREDUCE-896. Enhance tasktracker to cleanup files that might have
+    been created by user tasks with non-writable permissions.
     (Ravi Gummadi via yhemanth)
 
     HADOOP-5879. Read compression level and strategy from Configuration for
@@ -1956,24 +1957,24 @@ Release 0.20.202.0 - unreleased
     HADOOP-6382 Mavenize the build.xml targets and update the bin scripts
     in preparation for publishing POM files (giri kesavan via ltucker)
 
-    HDFS-737. Add full path name of the file to the block information and 
-    summary of total number of files, blocks, live and deadnodes to 
+    HDFS-737. Add full path name of the file to the block information and
+    summary of total number of files, blocks, live and deadnodes to
     metasave output. (Jitendra Nath Pandey via suresh)
 
     HADOOP-6577. Add hidden configuration option "ipc.server.max.response.size"
-    to change the default 1 MB, the maximum size when large IPC handler 
+    to change the default 1 MB, the maximum size when large IPC handler
     response buffer is reset. (suresh)
 
-    HADOOP-6521. Fix backward compatiblity issue with umask when applications 
-    use deprecated param dfs.umask in configuration or use 
+    HADOOP-6521. Fix backward compatiblity issue with umask when applications
+    use deprecated param dfs.umask in configuration or use
     FsPermission.setUMask(). (suresh)
 
-    HDFS-737. Add full path name of the file to the block information and 
-    summary of total number of files, blocks, live and deadnodes to 
+    HDFS-737. Add full path name of the file to the block information and
+    summary of total number of files, blocks, live and deadnodes to
     metasave output. (Jitendra Nath Pandey via suresh)
 
-    HADOOP-6521. Fix backward compatiblity issue with umask when applications 
-    use deprecated param dfs.umask in configuration or use 
+    HADOOP-6521. Fix backward compatiblity issue with umask when applications
+    use deprecated param dfs.umask in configuration or use
     FsPermission.setUMask(). (suresh)
 
     MAPREDUCE-433. Use more reliable counters in TestReduceFetch.
@@ -1982,18 +1983,18 @@ Release 0.20.202.0 - unreleased
     MAPREDUCE-744. Introduces the notion of a public distributed cache.
     (ddas)
 
-    MAPREDUCE-1140. Fix DistributedCache to not decrement reference counts 
-    for unreferenced files in error conditions.    
+    MAPREDUCE-1140. Fix DistributedCache to not decrement reference counts
+    for unreferenced files in error conditions.
     (Amareshwari Sriramadasu via yhemanth)
 
-    MAPREDUCE-1284. Fix fts_open() call in task-controller that was failing 
+    MAPREDUCE-1284. Fix fts_open() call in task-controller that was failing
     LinuxTaskController unit tests. (Ravi Gummadi via yhemanth)
 
-    MAPREDUCE-1098. Fixed the distributed-cache to not do i/o while 
+    MAPREDUCE-1098. Fixed the distributed-cache to not do i/o while
     holding a global lock.
     (Amareshwari Sriramadasu via acmurthy)
 
-    MAPREDUCE-1338. Introduces the notion of token cache using which 
+    MAPREDUCE-1338. Introduces the notion of token cache using which
     tokens and secrets can be sent by the Job client to the JobTracker.
     (Boris Shkolnik)
 
@@ -2009,20 +2010,20 @@ Release 0.20.202.0 - unreleased
     MAPREDUCE-856. Setup secure permissions for distributed cache files.
     (Vinod Kumar Vavilapalli via yhemanth)
 
-    MAPREDUCE-871. Fix ownership of Job/Task local files to have correct 
+    MAPREDUCE-871. Fix ownership of Job/Task local files to have correct
     group ownership according to the egid of the tasktracker.
     (Vinod Kumar Vavilapalli via yhemanth)
-    
-    MAPREDUCE-476. Extend DistributedCache to work locally (LocalJobRunner). 
+
+    MAPREDUCE-476. Extend DistributedCache to work locally (LocalJobRunner).
     (Philip Zeyliger via tomwhite)
 
-    MAPREDUCE-711. Removed Distributed Cache from Common, to move it under 
+    MAPREDUCE-711. Removed Distributed Cache from Common, to move it under
     Map/Reduce. (Vinod Kumar Vavilapalli via yhemanth)
 
-    MAPREDUCE-478. Allow map and reduce jvm parameters, environment 
+    MAPREDUCE-478. Allow map and reduce jvm parameters, environment
     variables and ulimit to be set separately. (acmurthy)
- 
-    MAPREDUCE-842. Setup secure permissions for localized job files, 
+
+    MAPREDUCE-842. Setup secure permissions for localized job files,
     intermediate outputs and log files on tasktrackers.
     (Vinod Kumar Vavilapalli via yhemanth)
 
@@ -2035,16 +2036,16 @@ Release 0.20.202.0 - unreleased
     MAPREDUCE-181. Changes the job submission process to be secure.
     (Devaraj Das)
 
-    HADOOP-5737. Fixes a problem in the way the JobTracker used to talk to 
-    other daemons like the NameNode to get the job's files. Also adds APIs 
-    in the JobTracker to get the FileSystem objects as per the JobTracker's 
+    HADOOP-5737. Fixes a problem in the way the JobTracker used to talk to
+    other daemons like the NameNode to get the job's files. Also adds APIs
+    in the JobTracker to get the FileSystem objects as per the JobTracker's
     configuration. (Amar Kamat via ddas)
- 
+
     HADOOP-5771. Implements unit tests for LinuxTaskController.
     (Sreekanth Ramakrishnan and Vinod Kumar Vavilapalli via yhemanth)
 
-    HADOOP-4656, HDFS-685, MAPREDUCE-1083. Use the user-to-groups mapping 
-    service in the NameNode and JobTracker. Combined patch for these 3 jiras 
+    HADOOP-4656, HDFS-685, MAPREDUCE-1083. Use the user-to-groups mapping
+    service in the NameNode and JobTracker. Combined patch for these 3 jiras
     otherwise tests fail. (Jitendra Nath Pandey)
 
     MAPREDUCE-1250. Refactor job token to use a common token interface.
@@ -2054,10 +2055,10 @@ Release 0.20.202.0 - unreleased
 
     HADOOP-4268. Permission checking in fsck. (Jitendra Nath Pandey)
 
-    HADOOP-6415. Adding a common token interface for both job token and 
+    HADOOP-6415. Adding a common token interface for both job token and
     delegation token. (Jitendra Nath Pandey)
 
-    HADOOP-6367, HDFS-764. Moving Access Token implementation from Common to 
+    HADOOP-6367, HDFS-764. Moving Access Token implementation from Common to
     HDFS. These two jiras must be committed together otherwise build will
     fail. (Jitendra Nath Pandey)
 
@@ -2070,32 +2071,32 @@ Release 0.20.202.0 - unreleased
     HDFS-445. pread() fails when cached block locations are no longer valid.
     (Jitendra Nath Pandey)
 
-    HDFS-195. Need to handle access token expiration when re-establishing the 
+    HDFS-195. Need to handle access token expiration when re-establishing the
     pipeline for dfs write. (Jitendra Nath Pandey)
 
-    HADOOP-6176. Adding a couple private methods to AccessTokenHandler 
+    HADOOP-6176. Adding a couple private methods to AccessTokenHandler
     for testing purposes. (Jitendra Nath Pandey)
 
     HADOOP-5824. remove OP_READ_METADATA functionality from Datanode.
     (Jitendra Nath Pandey)
 
-    HADOOP-4359. Access Token: Support for data access authorization 
+    HADOOP-4359. Access Token: Support for data access authorization
     checking on DataNodes. (Jitendra Nath Pandey)
 
     MAPREDUCE-1372. Fixed a ConcurrentModificationException in jobtracker.
     (Arun C Murthy via yhemanth)
 
     MAPREDUCE-1316. Fix jobs' retirement from the JobTracker to prevent memory
-    leaks via stale references. (Amar Kamat via acmurthy)  
+    leaks via stale references. (Amar Kamat via acmurthy)
 
-    MAPREDUCE-1342. Fixed deadlock in global blacklisting of tasktrackers. 
-    (Amareshwari Sriramadasu via acmurthy)  
+    MAPREDUCE-1342. Fixed deadlock in global blacklisting of tasktrackers.
+    (Amareshwari Sriramadasu via acmurthy)
 
     HADOOP-6460. Reinitializes buffers used for serializing responses in ipc
     server on exceeding maximum response size to free up Java heap. (suresh)
 
     MAPREDUCE-1100. Truncate user logs to prevent TaskTrackers' disks from
-    filling up. (Vinod Kumar Vavilapalli via acmurthy) 
+    filling up. (Vinod Kumar Vavilapalli via acmurthy)
 
     MAPREDUCE-1143. Fix running task counters to be updated correctly
     when speculative attempts are running for a TIP.
@@ -2108,36 +2109,36 @@ Release 0.20.202.0 - unreleased
     spurious logging in tasktracker logs for absent file paths.
     (Ravi Gummadi via yhemanth)
 
-    MAPREDUCE-676. Fix Hadoop Vaidya to ensure it works for map-only jobs. 
-    (Suhas Gogate via acmurthy) 
+    MAPREDUCE-676. Fix Hadoop Vaidya to ensure it works for map-only jobs.
+    (Suhas Gogate via acmurthy)
 
     HADOOP-5582. Fix Hadoop Vaidya to use new Counters in
-    org.apache.hadoop.mapreduce package. (Suhas Gogate via acmurthy) 
+    org.apache.hadoop.mapreduce package. (Suhas Gogate via acmurthy)
 
-    HDFS-595.  umask settings in configuration may now use octal or 
+    HDFS-595.  umask settings in configuration may now use octal or
     symbolic instead of decimal.  Update HDFS tests as such.  (jghoman)
 
     MAPREDUCE-1068. Added a verbose error message when user specifies an
-    incorrect -file parameter. (Amareshwari Sriramadasu via acmurthy)  
+    incorrect -file parameter. (Amareshwari Sriramadasu via acmurthy)
 
     MAPREDUCE-1171. Allow the read-error notification in shuffle to be
-    configurable. (Amareshwari Sriramadasu via acmurthy) 
+    configurable. (Amareshwari Sriramadasu via acmurthy)
 
     MAPREDUCE-353. Allow shuffle read and connection timeouts to be
-    configurable. (Amareshwari Sriramadasu via acmurthy) 
+    configurable. (Amareshwari Sriramadasu via acmurthy)
 
-    HDFS-781. Namenode metrics PendingDeletionBlocks is not decremented. 
+    HDFS-781. Namenode metrics PendingDeletionBlocks is not decremented.
     (suresh)
- 
-    MAPREDUCE-1185. Redirect running job url to history url if job is already 
+
+    MAPREDUCE-1185. Redirect running job url to history url if job is already
     retired. (Amareshwari Sriramadasu and Sharad Agarwal via sharad)
 
-    MAPREDUCE-754. Fix NPE in expiry thread when a TT is lost. (Amar Kamat 
+    MAPREDUCE-754. Fix NPE in expiry thread when a TT is lost. (Amar Kamat
     via sharad)
 
     MAPREDUCE-896. Modify permissions for local files on tasktracker before
     deletion so they can be deleted cleanly. (Ravi Gummadi via yhemanth)
- 
+
     HADOOP-5771. Implements unit tests for LinuxTaskController.
     (Sreekanth Ramakrishnan and Vinod Kumar Vavilapalli via yhemanth)
 
@@ -2161,7 +2162,7 @@ Release 0.20.202.0 - unreleased
     when the history viewer is accessed concurrently.
     (Amar Kamat via ddas)
 
-    MAPREDUCE-1140. Fix DistributedCache to not decrement reference counts for 
+    MAPREDUCE-1140. Fix DistributedCache to not decrement reference counts for
     unreferenced files in error conditions.
     (Amareshwari Sriramadasu via yhemanth)
 
@@ -2176,10 +2177,10 @@ Release 0.20.202.0 - unreleased
     This fix is a port from hdfs-0.22 to common-0.20 by Boris Shkolnik.
     Contributed by Erik Steffl
 
-    HDFS-625. Fix NullPointerException thrown from ListPathServlet. 
+    HDFS-625. Fix NullPointerException thrown from ListPathServlet.
     Contributed by Suresh Srinivas.
 
-    HADOOP-6343. Log unexpected throwable object caught in RPC.  
+    HADOOP-6343. Log unexpected throwable object caught in RPC.
     Contributed by Jitendra Nath Pandey
 
     MAPREDUCE-1186. Fixed DistributedCache to do a recursive chmod on just the
@@ -2234,7 +2235,7 @@ Release 0.20.202.0 - unreleased
 
     MAPREDUCE-947. Added commitJob and abortJob apis to OutputCommitter.
     Enhanced FileOutputCommitter to create a _SUCCESS file for successful
-    jobs. (Amar Kamat & Jothi Padmanabhan via acmurthy) 
+    jobs. (Amar Kamat & Jothi Padmanabhan via acmurthy)
 
     MAPREDUCE-1105. Remove max limit configuration in capacity scheduler in
     favor of max capacity percentage thus allowing the limit to go over
@@ -2243,7 +2244,7 @@ Release 0.20.202.0 - unreleased
     MAPREDUCE-1086. Setup Hadoop logging environment for tasks to point to
     task related parameters. (Ravi Gummadi via yhemanth)
 
-    MAPREDUCE-739. Allow relative paths to be created inside archives. 
+    MAPREDUCE-739. Allow relative paths to be created inside archives.
     (mahadev)
 
     HADOOP-6097. Multiple bugs w/ Hadoop archives (mahadev)
@@ -2257,7 +2258,7 @@ Release 0.20.202.0 - unreleased
     HDFS-686. NullPointerException is thrown while merging edit log and
     image. (hairong)
 
-    HDFS-709. Fix TestDFSShell failure due to rename bug introduced by 
+    HDFS-709. Fix TestDFSShell failure due to rename bug introduced by
     HDFS-677. (suresh)
 
     HDFS-677. Rename failure when both source and destination quota exceeds
@@ -2270,18 +2271,18 @@ Release 0.20.202.0 - unreleased
     MAPREDUCE-732. Removed spurious log statements in the node
     blacklisting logic. (Sreekanth Ramakrishnan via yhemanth)
 
-    MAPREDUCE-144. Includes dump of the process tree in task diagnostics when 
+    MAPREDUCE-144. Includes dump of the process tree in task diagnostics when
     a task is killed due to exceeding memory limits.
     (Vinod Kumar Vavilapalli via yhemanth)
 
-    MAPREDUCE-979. Fixed JobConf APIs related to memory parameters to 
-    return values of new configuration variables when deprecated 
+    MAPREDUCE-979. Fixed JobConf APIs related to memory parameters to
+    return values of new configuration variables when deprecated
     variables are disabled. (Sreekanth Ramakrishnan via yhemanth)
 
     MAPREDUCE-277. Makes job history counters available on the job history
     viewers. (Jothi Padmanabhan via ddas)
 
-    HADOOP-5625. Add operation duration to clienttrace. (Lei Xu 
+    HADOOP-5625. Add operation duration to clienttrace. (Lei Xu
     via cdouglas)
 
     HADOOP-5222. Add offset to datanode clienttrace. (Lei Xu via cdouglas)
@@ -2294,7 +2295,7 @@ Release 0.20.202.0 - unreleased
 
     HADOOP-6304. Use java.io.File.set{Readable|Writable|Executable} where
     possible in RawLocalFileSystem. Contributed by Arun C. Murthy.
-    
+
     MAPREDUCE-270. Fix the tasktracker to optionally send an out-of-band
     heartbeat on task-completion for better job-latency. Contributed by
     Arun C. Murthy
@@ -2305,66 +2306,66 @@ Release 0.20.202.0 - unreleased
     per-heartbeat. Contributed by Rahuk K Singh.
 
     MAPREDUCE-1028. Fixed number of slots occupied by cleanup tasks to one
-    irrespective of slot size for the job. Contributed by Ravi Gummadi. 
+    irrespective of slot size for the job. Contributed by Ravi Gummadi.
 
     MAPREDUCE-964. Fixed start and finish times of TaskStatus to be
     consistent, thereby fixing inconsistencies in metering tasks.
     Contributed by Sreekanth Ramakrishnan.
 
-    HADOOP-5976. Add a new command, classpath, to the hadoop 
+    HADOOP-5976. Add a new command, classpath, to the hadoop
     script. Contributed by Owen O'Malley and Gary Murry
 
-    HADOOP-5784. Makes the number of heartbeats that should arrive 
-    a second at the JobTracker configurable. Contributed by 
+    HADOOP-5784. Makes the number of heartbeats that should arrive
+    a second at the JobTracker configurable. Contributed by
     Amareshwari Sriramadasu.
 
-    MAPREDUCE-945. Modifies MRBench and TestMapRed to use 
-    ToolRunner so that options such as queue name can be 
+    MAPREDUCE-945. Modifies MRBench and TestMapRed to use
+    ToolRunner so that options such as queue name can be
     passed via command line. Contributed by Sreekanth Ramakrishnan.
 
     HADOOP:5420 Correct bug in earlier implementation
     by Arun C. Murthy
 
-    HADOOP-5363 Add support for proxying connections to multiple 
-    clusters with different versions to hdfsproxy. Contributed 
+    HADOOP-5363 Add support for proxying connections to multiple
+    clusters with different versions to hdfsproxy. Contributed
     by Zhiyong Zhang
 
-    HADOOP-5780. Improve per block message prited by -metaSave 
+    HADOOP-5780. Improve per block message prited by -metaSave
     in HDFS. (Raghu Angadi)
 
-    HADOOP-6227. Fix Configuration to allow final parameters to be set 
-    to null and prevent them from being overridden. Contributed by 
+    HADOOP-6227. Fix Configuration to allow final parameters to be set
+    to null and prevent them from being overridden. Contributed by
     Amareshwari Sriramadasu.
 
     MAPREDUCE-430  Added patch supplied by Amar Kamat to allow roll forward
     on branch to includ externally committed patch.
 
-    MAPREDUCE-768. Provide an option to dump jobtracker configuration in 
+    MAPREDUCE-768. Provide an option to dump jobtracker configuration in
     JSON format to standard output. Contributed by V.V.Chaitanya
 
     MAPREDUCE-834 Correct an issue created by merging this issue with
     patch attached to external Jira.
 
-    HADOOP-6184 Provide an API to dump Configuration in a JSON format. 
+    HADOOP-6184 Provide an API to dump Configuration in a JSON format.
     Contributed by V.V.Chaitanya Krishna.
 
-    MAPREDUCE-745  Patch added for this issue to allow branch-0.20 to 
+    MAPREDUCE-745  Patch added for this issue to allow branch-0.20 to
     merge cleanly.
 
-    MAPREDUCE:478 Allow map and reduce jvm parameters, environment 
+    MAPREDUCE:478 Allow map and reduce jvm parameters, environment
     variables and ulimit to be set separately.
 
-    MAPREDUCE:682 Removes reservations on tasktrackers which are blacklisted. 
+    MAPREDUCE:682 Removes reservations on tasktrackers which are blacklisted.
     Contributed by Sreekanth Ramakrishnan.
 
-    HADOOP:5420 Support killing of process groups in LinuxTaskController 
+    HADOOP:5420 Support killing of process groups in LinuxTaskController
     binary
 
-    HADOOP-5488 Removes the pidfile management for the Task JVM from the 
-    framework and instead passes the PID back and forth between the 
+    HADOOP-5488 Removes the pidfile management for the Task JVM from the
+    framework and instead passes the PID back and forth between the
     TaskTracker and the Task processes. Contributed by Ravi Gummadi.
 
-    MAPREDUCE:467 Provide ability to collect statistics about total tasks and 
+    MAPREDUCE:467 Provide ability to collect statistics about total tasks and
     succeeded tasks in different time windows.
 
     MAPREDUCE-817. Add a cache for retired jobs with minimal job
@@ -2377,8 +2378,8 @@ Release 0.20.202.0 - unreleased
     happens. The bug was that even if commit failed, the task would be
     declared as successful. Contributed by Amareshwari Sriramadasu.
 
-    MAPREDUCE-809 Fix job-summary logs to correctly record final status of 
-    FAILED and KILLED jobs.  
+    MAPREDUCE-809 Fix job-summary logs to correctly record final status of
+    FAILED and KILLED jobs.
 
     MAPREDUCE-740 Log a job-summary at the end of a job, while
     allowing it to be configured to use a custom appender if desired.
@@ -2460,7 +2461,7 @@ Release 0.20.202.0 - unreleased
     HADOOP-2838 Now the users can set environment variables using
     mapred.child.env. They can do the following X=Y : set X to Y X=$X:Y
     : Append Y to X (which should be taken from the tasktracker)
-    
+
     HADOOP-5818. Revert the renaming from FSNamesystem.checkSuperuserPrivilege
     to checkAccess by HADOOP-5643.  (Amar Kamat via szetszwo)
 
@@ -2468,7 +2469,7 @@ Release 0.20.202.0 - unreleased
     then it should be refreshed upon recovery so that the excluded hosts are
     lost and the maps are re-executed. (Amar Kamat via ddas)
 
-    HADOOP-5643. HADOOP-5643. Adds a way to decommission TaskTrackers 
+    HADOOP-5643. HADOOP-5643. Adds a way to decommission TaskTrackers
     while the JobTracker is running. (Amar Kamat via ddas)
 
     HADOOP-5419. Provide a facility to query the Queue ACLs for the
@@ -2478,7 +2479,7 @@ Release 0.20.202.0 - unreleased
     JobTracker metrics. (Sreekanth Ramakrishnan via cdouglas)
 
     HADOOP-5738. Split "waiting_tasks" JobTracker metric into waiting maps and
-    waiting reduces. (Sreekanth Ramakrishnan via cdouglas) 
+    waiting reduces. (Sreekanth Ramakrishnan via cdouglas)
 
     HADOOP-4842. Streaming now allows specifiying a command for the combiner.
     (Amareshwari Sriramadasu via ddas)
@@ -2509,7 +2510,7 @@ Release 0.20.3 - Unreleased
 
   BUG FIXES
 
-    HDFS-955. New implementation of saveNamespace() to avoid loss of edits 
+    HDFS-955. New implementation of saveNamespace() to avoid loss of edits
     when name-node fails during saving. (shv)
 
 Release 0.20.2 - 2010-2-16
@@ -2557,9 +2558,9 @@ Release 0.20.2 - 2010-2-16
     MAPREDUCE-1070. Prevent a deadlock in the fair scheduler servlet.
     (Todd Lipcon via cdouglas)
 
-    HADOOP-5623. Ensure streaming status messages aren't overwritten. (Rick 
+    HADOOP-5623. Ensure streaming status messages aren't overwritten. (Rick
     Cox & Ravi Gummadi via tomwhite)
-    
+
     MAPREDUCE-1163. Remove unused, hard-coded paths from libhdfs. (Allen
     Wittenauer via cdouglas)
 
@@ -2597,7 +2598,7 @@ Release 0.20.1 - 2009-09-01
     like memory based scheduling, job initialization and removal of pre-emption.
     (Sreekanth Ramakrishnan via yhemanth)
 
-    HADOOP-4674. Fix fs help messages for -test, -text, -tail, -stat 
+    HADOOP-4674. Fix fs help messages for -test, -text, -tail, -stat
     and -touchz options.  (Ravi Phulari via szetszwo)
 
     HADOOP-4372. Improves the way history filenames are obtained and manipulated.
@@ -2615,10 +2616,10 @@ Release 0.20.1 - 2009-09-01
 
   BUG FIXES
 
-    HADOOP-5691. Makes org.apache.hadoop.mapreduce.Reducer concrete class 
+    HADOOP-5691. Makes org.apache.hadoop.mapreduce.Reducer concrete class
     instead of abstract. (Amareshwari Sriramadasu via sharad)
 
-    HADOOP-5646. Fixes a problem in TestQueueCapacities. 
+    HADOOP-5646. Fixes a problem in TestQueueCapacities.
     (Vinod Kumar Vavilapalli via ddas)
 
     HADOOP-5655. TestMRServerPorts fails on java.net.BindException. (Devaraj
@@ -2630,7 +2631,7 @@ Release 0.20.1 - 2009-09-01
     HADOOP-5688. Fix HftpFileSystem checksum path construction. (Tsz Wo
     (Nicholas) Sze via cdouglas)
 
-    HADOOP-5213. Fix Null pointer exception caused when bzip2compression 
+    HADOOP-5213. Fix Null pointer exception caused when bzip2compression
     was used and user closed a output stream without writing any data.

[... 3763 lines stripped ...]


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