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Posted to common-commits@hadoop.apache.org by su...@apache.org on 2018/09/12 10:24:43 UTC
[36/90] [abbrv] [partial] hadoop git commit: HADOOP-14671. Upgrade
Apache Yetus to 0.8.0
http://git-wip-us.apache.org/repos/asf/hadoop/blob/4b8c2b1c/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.205.0/CHANGELOG.0.20.205.0.md
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+
+<!---
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+-->
+# Apache Hadoop Changelog
+
+## Release 0.20.205.0 - 2011-10-06
+
+### INCOMPATIBLE CHANGES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-630](https://issues.apache.org/jira/browse/HDFS-630) | In DFSOutputStream.nextBlockOutputStream(), the client can exclude specific datanodes when locating the next block. | Major | hdfs-client, namenode | Ruyue Ma | Cosmin Lehene |
+| [HDFS-1554](https://issues.apache.org/jira/browse/HDFS-1554) | Append 0.20: New semantics for recoverLease | Major | . | Hairong Kuang | Hairong Kuang |
+| [HDFS-2202](https://issues.apache.org/jira/browse/HDFS-2202) | Changes to balancer bandwidth should not require datanode restart. | Major | balancer & mover, datanode | Eric Payne | Eric Payne |
+
+
+### NEW FEATURES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-200](https://issues.apache.org/jira/browse/HDFS-200) | In HDFS, sync() not yet guarantees data available to the new readers | Blocker | . | Tsz Wo Nicholas Sze | dhruba borthakur |
+| [HDFS-1520](https://issues.apache.org/jira/browse/HDFS-1520) | HDFS 20 append: Lightweight NameNode operation to trigger lease recovery | Major | namenode | Hairong Kuang | Hairong Kuang |
+| [HADOOP-7594](https://issues.apache.org/jira/browse/HADOOP-7594) | Support HTTP REST in HttpServer | Major | . | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [HADOOP-7119](https://issues.apache.org/jira/browse/HADOOP-7119) | add Kerberos HTTP SPNEGO authentication support to Hadoop JT/NN/DN/TT web-consoles | Major | security | Alejandro Abdelnur | Alejandro Abdelnur |
+| [HADOOP-6889](https://issues.apache.org/jira/browse/HADOOP-6889) | Make RPC to have an option to timeout | Major | ipc | Hairong Kuang | John George |
+| [MAPREDUCE-2777](https://issues.apache.org/jira/browse/MAPREDUCE-2777) | Backport MAPREDUCE-220 to Hadoop 20 security branch | Major | . | Jonathan Eagles | Amar Kamat |
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-826](https://issues.apache.org/jira/browse/HDFS-826) | Allow a mechanism for an application to detect that datanode(s) have died in the write pipeline | Major | hdfs-client | dhruba borthakur | dhruba borthakur |
+| [HDFS-1054](https://issues.apache.org/jira/browse/HDFS-1054) | Remove unnecessary sleep after failure in nextBlockOutputStream | Major | hdfs-client | Todd Lipcon | Todd Lipcon |
+| [HDFS-1210](https://issues.apache.org/jira/browse/HDFS-1210) | DFSClient should log exception when block recovery fails | Trivial | hdfs-client | Todd Lipcon | Todd Lipcon |
+| [HDFS-1211](https://issues.apache.org/jira/browse/HDFS-1211) | 0.20 append: Block receiver should not log "rewind" packets at INFO level | Minor | datanode | Todd Lipcon | Todd Lipcon |
+| [HDFS-895](https://issues.apache.org/jira/browse/HDFS-895) | Allow hflush/sync to occur in parallel with new writes to the file | Major | hdfs-client | dhruba borthakur | Todd Lipcon |
+| [HDFS-1555](https://issues.apache.org/jira/browse/HDFS-1555) | HDFS 20 append: Disallow pipeline recovery if a file is already being lease recovered | Major | . | Hairong Kuang | Hairong Kuang |
+| [HADOOP-7343](https://issues.apache.org/jira/browse/HADOOP-7343) | backport HADOOP-7008 and HADOOP-7042 to branch-0.20-security | Minor | test | Thomas Graves | Thomas Graves |
+| [HADOOP-7432](https://issues.apache.org/jira/browse/HADOOP-7432) | Back-port HADOOP-7110 to 0.20-security | Major | . | Sherry Chen | Sherry Chen |
+| [HADOOP-7314](https://issues.apache.org/jira/browse/HADOOP-7314) | Add support for throwing UnknownHostException when a host doesn't resolve | Major | . | Jeffrey Naisbitt | Jeffrey Naisbitt |
+| [MAPREDUCE-2494](https://issues.apache.org/jira/browse/MAPREDUCE-2494) | Make the distributed cache delete entires using LRU priority | Major | distributed-cache | Robert Joseph Evans | Robert Joseph Evans |
+| [MAPREDUCE-2729](https://issues.apache.org/jira/browse/MAPREDUCE-2729) | Reducers are always counted having "pending tasks" even if they can't be scheduled yet because not enough of their mappers have completed | Major | . | Sherry Chen | Sherry Chen |
+| [HADOOP-7472](https://issues.apache.org/jira/browse/HADOOP-7472) | RPC client should deal with the IP address changes | Minor | ipc | Kihwal Lee | Kihwal Lee |
+| [MAPREDUCE-2981](https://issues.apache.org/jira/browse/MAPREDUCE-2981) | Backport trunk fairscheduler to 0.20-security branch | Major | contrib/fair-share | Matei Zaharia | Matei Zaharia |
+| [HADOOP-7707](https://issues.apache.org/jira/browse/HADOOP-7707) | improve config generator to allow users to specify proxy user, turn append on or off, turn webhdfs on or off | Major | conf | Arpit Gupta | Arpit Gupta |
+| [HADOOP-7720](https://issues.apache.org/jira/browse/HADOOP-7720) | improve the hadoop-setup-conf.sh to read in the hbase user and setup the configs | Major | conf | Arpit Gupta | Arpit Gupta |
+| [HADOOP-7655](https://issues.apache.org/jira/browse/HADOOP-7655) | provide a small validation script that smoke tests the installed cluster | Major | . | Arpit Gupta | Arpit Gupta |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-606](https://issues.apache.org/jira/browse/HDFS-606) | ConcurrentModificationException in invalidateCorruptReplicas() | Major | namenode | Konstantin Shvachko | Konstantin Shvachko |
+| [HDFS-724](https://issues.apache.org/jira/browse/HDFS-724) | Pipeline close hangs if one of the datanode is not responsive. | Blocker | datanode, hdfs-client | Tsz Wo Nicholas Sze | Hairong Kuang |
+| [HADOOP-6722](https://issues.apache.org/jira/browse/HADOOP-6722) | NetUtils.connect should check that it hasn't connected a socket to itself | Major | util | Todd Lipcon | Todd Lipcon |
+| [HDFS-142](https://issues.apache.org/jira/browse/HDFS-142) | In 0.20, move blocks being written into a blocksBeingWritten directory | Blocker | . | Raghu Angadi | dhruba borthakur |
+| [HDFS-1141](https://issues.apache.org/jira/browse/HDFS-1141) | completeFile does not check lease ownership | Blocker | namenode | Todd Lipcon | Todd Lipcon |
+| [HDFS-1207](https://issues.apache.org/jira/browse/HDFS-1207) | 0.20-append: stallReplicationWork should be volatile | Major | namenode | Todd Lipcon | Todd Lipcon |
+| [HDFS-1204](https://issues.apache.org/jira/browse/HDFS-1204) | 0.20: Lease expiration should recover single files, not entire lease holder | Major | . | Todd Lipcon | sam rash |
+| [HDFS-1118](https://issues.apache.org/jira/browse/HDFS-1118) | DFSOutputStream socket leak when cannot connect to DataNode | Major | . | Zheng Shao | Zheng Shao |
+| [HDFS-1202](https://issues.apache.org/jira/browse/HDFS-1202) | DataBlockScanner throws NPE when updated before initialized | Major | datanode | Todd Lipcon | Todd Lipcon |
+| [HADOOP-6833](https://issues.apache.org/jira/browse/HADOOP-6833) | IPC leaks call parameters when exceptions thrown | Blocker | . | Todd Lipcon | Todd Lipcon |
+| [HDFS-1346](https://issues.apache.org/jira/browse/HDFS-1346) | DFSClient receives out of order packet ack | Major | datanode, hdfs-client | Hairong Kuang | Hairong Kuang |
+| [HDFS-1164](https://issues.apache.org/jira/browse/HDFS-1164) | TestHdfsProxy is failing | Major | contrib/hdfsproxy | Eli Collins | Todd Lipcon |
+| [HDFS-988](https://issues.apache.org/jira/browse/HDFS-988) | saveNamespace race can corrupt the edits log | Blocker | namenode | dhruba borthakur | Eli Collins |
+| [HDFS-1836](https://issues.apache.org/jira/browse/HDFS-1836) | Thousand of CLOSE\_WAIT socket | Major | hdfs-client | Dennis Cheung | Bharath Mundlapudi |
+| [HADOOP-7400](https://issues.apache.org/jira/browse/HADOOP-7400) | HdfsProxyTests fails when the -Dtest.build.dir and -Dbuild.test is set | Major | build | Giridharan Kesavan | Giridharan Kesavan |
+| [MAPREDUCE-2650](https://issues.apache.org/jira/browse/MAPREDUCE-2650) | back-port MAPREDUCE-2238 to 0.20-security | Major | . | Sherry Chen | Sherry Chen |
+| [MAPREDUCE-2324](https://issues.apache.org/jira/browse/MAPREDUCE-2324) | Job should fail if a reduce task can't be scheduled anywhere | Major | . | Todd Lipcon | Robert Joseph Evans |
+| [MAPREDUCE-2187](https://issues.apache.org/jira/browse/MAPREDUCE-2187) | map tasks timeout during sorting | Major | . | Gianmarco De Francisci Morales | Anupam Seth |
+| [HDFS-2053](https://issues.apache.org/jira/browse/HDFS-2053) | Bug in INodeDirectory#computeContentSummary warning | Minor | namenode | Michael Noll | Michael Noll |
+| [HDFS-2117](https://issues.apache.org/jira/browse/HDFS-2117) | DiskChecker#mkdirsWithExistsAndPermissionCheck may return true even when the dir is not created | Minor | datanode | Eli Collins | Eli Collins |
+| [MAPREDUCE-2705](https://issues.apache.org/jira/browse/MAPREDUCE-2705) | tasks localized and launched serially by TaskLauncher - causing other tasks to be delayed | Major | tasktracker | Thomas Graves | Thomas Graves |
+| [HDFS-2190](https://issues.apache.org/jira/browse/HDFS-2190) | NN fails to start if it encounters an empty or malformed fstime file | Major | namenode | Aaron T. Myers | Aaron T. Myers |
+| [MAPREDUCE-2489](https://issues.apache.org/jira/browse/MAPREDUCE-2489) | Jobsplits with random hostnames can make the queue unusable | Major | jobtracker | Jeffrey Naisbitt | Jeffrey Naisbitt |
+| [HDFS-2259](https://issues.apache.org/jira/browse/HDFS-2259) | DN web-UI doesn't work with paths that contain html | Minor | datanode | Eli Collins | Eli Collins |
+| [MAPREDUCE-2852](https://issues.apache.org/jira/browse/MAPREDUCE-2852) | Jira for YDH bug 2854624 | Major | tasktracker | Eli Collins | Kihwal Lee |
+| [HADOOP-7539](https://issues.apache.org/jira/browse/HADOOP-7539) | merge hadoop archive goodness from trunk to .20 | Major | . | John George | John George |
+| [HADOOP-7596](https://issues.apache.org/jira/browse/HADOOP-7596) | Enable jsvc to work with Hadoop RPM package | Major | build | Eric Yang | Eric Yang |
+| [HDFS-2309](https://issues.apache.org/jira/browse/HDFS-2309) | TestRenameWhileOpen fails in branch-0.20-security | Major | . | Jitendra Nath Pandey | Jitendra Nath Pandey |
+| [HDFS-2320](https://issues.apache.org/jira/browse/HDFS-2320) | Make merged protocol changes from 0.20-append to 0.20-security compatible with previous releases. | Major | datanode, hdfs-client, namenode | Suresh Srinivas | Suresh Srinivas |
+| [MAPREDUCE-2610](https://issues.apache.org/jira/browse/MAPREDUCE-2610) | Inconsistent API JobClient.getQueueAclsForCurrentUser | Major | client | Joep Rottinghuis | Joep Rottinghuis |
+| [MAPREDUCE-2915](https://issues.apache.org/jira/browse/MAPREDUCE-2915) | LinuxTaskController does not work when JniBasedUnixGroupsNetgroupMapping or JniBasedUnixGroupsMapping is enabled | Major | task-controller | Kihwal Lee | Kihwal Lee |
+| [HADOOP-7610](https://issues.apache.org/jira/browse/HADOOP-7610) | /etc/profile.d does not exist on Debian | Major | scripts | Eric Yang | Eric Yang |
+| [HADOOP-7599](https://issues.apache.org/jira/browse/HADOOP-7599) | Improve hadoop setup conf script to setup secure Hadoop cluster | Major | scripts | Eric Yang | Eric Yang |
+| [HADOOP-7626](https://issues.apache.org/jira/browse/HADOOP-7626) | Allow overwrite of HADOOP\_CLASSPATH and HADOOP\_OPTS | Major | scripts | Eric Yang | Eric Yang |
+| [MAPREDUCE-2549](https://issues.apache.org/jira/browse/MAPREDUCE-2549) | Potential resource leaks in HadoopServer.java, RunOnHadoopWizard.java and Environment.java | Major | contrib/eclipse-plugin, contrib/streaming | Devaraj K | Devaraj K |
+| [HDFS-2328](https://issues.apache.org/jira/browse/HDFS-2328) | hftp throws NPE if security is not enabled on remote cluster | Critical | . | Daryn Sharp | Owen O'Malley |
+| [HDFS-1779](https://issues.apache.org/jira/browse/HDFS-1779) | After NameNode restart , Clients can not read partial files even after client invokes Sync. | Major | datanode, namenode | Uma Maheswara Rao G | Uma Maheswara Rao G |
+| [HDFS-2331](https://issues.apache.org/jira/browse/HDFS-2331) | Hdfs compilation fails | Major | hdfs-client | Abhijit Suresh Shingate | Abhijit Suresh Shingate |
+| [HDFS-2333](https://issues.apache.org/jira/browse/HDFS-2333) | HDFS-2284 introduced 2 findbugs warnings on trunk | Major | . | Ivan Kelly | Tsz Wo Nicholas Sze |
+| [HADOOP-7625](https://issues.apache.org/jira/browse/HADOOP-7625) | TestDelegationToken is failing in 205 | Major | . | Owen O'Malley | Owen O'Malley |
+| [HADOOP-7637](https://issues.apache.org/jira/browse/HADOOP-7637) | Fair scheduler configuration file is not bundled in RPM | Major | build | Eric Yang | Eric Yang |
+| [HADOOP-7631](https://issues.apache.org/jira/browse/HADOOP-7631) | In mapred-site.xml, stream.tmpdir is mapped to ${mapred.temp.dir} which is undeclared. | Major | conf | Ramya Sunil | Eric Yang |
+| [HADOOP-7630](https://issues.apache.org/jira/browse/HADOOP-7630) | hadoop-metrics2.properties should have a property \*.period set to a default value foe metrics | Major | conf | Arpit Gupta | Eric Yang |
+| [HADOOP-7633](https://issues.apache.org/jira/browse/HADOOP-7633) | log4j.properties should be added to the hadoop conf on deploy | Major | conf | Arpit Gupta | Eric Yang |
+| [HADOOP-7644](https://issues.apache.org/jira/browse/HADOOP-7644) | Fix the delegation token tests to use the new style renewers | Blocker | security | Owen O'Malley | Owen O'Malley |
+| [MAPREDUCE-3076](https://issues.apache.org/jira/browse/MAPREDUCE-3076) | TestSleepJob fails | Blocker | test | Arun C Murthy | Arun C Murthy |
+| [HADOOP-7645](https://issues.apache.org/jira/browse/HADOOP-7645) | HTTP auth tests requiring Kerberos infrastructure are not disabled on branch-0.20-security | Blocker | security | Aaron T. Myers | Jitendra Nath Pandey |
+| [HADOOP-7674](https://issues.apache.org/jira/browse/HADOOP-7674) | TestKerberosName fails in 20 branch. | Major | . | Jitendra Nath Pandey | Jitendra Nath Pandey |
+| [HDFS-2342](https://issues.apache.org/jira/browse/HDFS-2342) | TestSleepJob and TestHdfsProxy broken after HDFS-2284 | Blocker | build | Kihwal Lee | Tsz Wo Nicholas Sze |
+| [HDFS-2325](https://issues.apache.org/jira/browse/HDFS-2325) | Fuse-DFS fails to build on Hadoop 20.203.0 | Blocker | fuse-dfs, libhdfs | Charles Earl | Kihwal Lee |
+| [HADOOP-7679](https://issues.apache.org/jira/browse/HADOOP-7679) | log4j.properties templates does not define mapred.jobsummary.logger | Major | conf | Ramya Sunil | Ramya Sunil |
+| [HDFS-2359](https://issues.apache.org/jira/browse/HDFS-2359) | NPE found in Datanode log while Disk failed during different HDFS operation | Major | datanode | Rajit Saha | Jonathan Eagles |
+| [HDFS-2375](https://issues.apache.org/jira/browse/HDFS-2375) | TestFileAppend4 fails in 0.20.205 branch | Blocker | hdfs-client | Suresh Srinivas | Suresh Srinivas |
+| [MAPREDUCE-3081](https://issues.apache.org/jira/browse/MAPREDUCE-3081) | Change the name format for hadoop core and vaidya jar to be hadoop-{core/vaidya}-{version}.jar in vaidya.sh | Major | contrib/vaidya | vitthal (Suhas) Gogate | |
+| [HDFS-2373](https://issues.apache.org/jira/browse/HDFS-2373) | Commands using webhdfs and hftp print unnecessary debug information on the console with security enabled | Major | webhdfs | Arpit Gupta | Arpit Gupta |
+| [HDFS-2368](https://issues.apache.org/jira/browse/HDFS-2368) | defaults created for web keytab and principal, these properties should not have defaults | Major | . | Arpit Gupta | Tsz Wo Nicholas Sze |
+| [HDFS-2361](https://issues.apache.org/jira/browse/HDFS-2361) | hftp is broken | Critical | namenode | Rajit Saha | Jitendra Nath Pandey |
+| [HADOOP-7683](https://issues.apache.org/jira/browse/HADOOP-7683) | hdfs-site.xml template has properties that are not used in 20 | Minor | . | Arpit Gupta | Arpit Gupta |
+| [HDFS-1260](https://issues.apache.org/jira/browse/HDFS-1260) | 0.20: Block lost when multiple DNs trying to recover it to different genstamps | Critical | . | Todd Lipcon | Todd Lipcon |
+| [HDFS-1186](https://issues.apache.org/jira/browse/HDFS-1186) | 0.20: DNs should interrupt writers at start of recovery | Blocker | datanode | Todd Lipcon | Todd Lipcon |
+| [HDFS-1218](https://issues.apache.org/jira/browse/HDFS-1218) | 20 append: Blocks recovered on startup should be treated with lower priority during block synchronization | Critical | datanode | Todd Lipcon | Todd Lipcon |
+| [HADOOP-7691](https://issues.apache.org/jira/browse/HADOOP-7691) | hadoop deb pkg should take a diff group id | Major | . | Giridharan Kesavan | Eric Yang |
+| [HADOOP-7603](https://issues.apache.org/jira/browse/HADOOP-7603) | Set default hdfs, mapred uid, and hadoop group gid for RPM packages | Major | . | Eric Yang | Eric Yang |
+| [HADOOP-7658](https://issues.apache.org/jira/browse/HADOOP-7658) | to fix hadoop config template | Major | . | Giridharan Kesavan | Eric Yang |
+| [HADOOP-7684](https://issues.apache.org/jira/browse/HADOOP-7684) | jobhistory server and secondarynamenode should have init.d script | Major | scripts | Eric Yang | Eric Yang |
+| [MAPREDUCE-3112](https://issues.apache.org/jira/browse/MAPREDUCE-3112) | Calling hadoop cli inside mapreduce job leads to errors | Major | contrib/streaming | Eric Yang | Eric Yang |
+| [HADOOP-7715](https://issues.apache.org/jira/browse/HADOOP-7715) | see log4j Error when running mr jobs and certain dfs calls | Major | conf | Arpit Gupta | Eric Yang |
+| [HADOOP-7711](https://issues.apache.org/jira/browse/HADOOP-7711) | hadoop-env.sh generated from templates has duplicate info | Major | conf | Arpit Gupta | Arpit Gupta |
+| [HADOOP-7681](https://issues.apache.org/jira/browse/HADOOP-7681) | log4j.properties is missing properties for security audit and hdfs audit should be changed to info | Minor | conf | Arpit Gupta | Arpit Gupta |
+| [HADOOP-7708](https://issues.apache.org/jira/browse/HADOOP-7708) | config generator does not update the properties file if on exists already | Critical | conf | Arpit Gupta | Eric Yang |
+| [HDFS-2358](https://issues.apache.org/jira/browse/HDFS-2358) | NPE when the default filesystem's uri has no authority | Major | namenode | Rajit Saha | Daryn Sharp |
+| [HDFS-2392](https://issues.apache.org/jira/browse/HDFS-2392) | Dist with hftp is failing again | Critical | namenode | Rajit Saha | Daryn Sharp |
+| [HDFS-2408](https://issues.apache.org/jira/browse/HDFS-2408) | DFSClient#getNumCurrentReplicas is package private in 205 but public in branch-0.20-append | Blocker | hdfs-client | stack | stack |
+| [HADOOP-7721](https://issues.apache.org/jira/browse/HADOOP-7721) | dfs.web.authentication.kerberos.principal expects the full hostname and does not replace \_HOST with the hostname | Major | . | Arpit Gupta | Jitendra Nath Pandey |
+| [HDFS-2405](https://issues.apache.org/jira/browse/HDFS-2405) | hadoop dfs command with webhdfs fails on secure hadoop | Critical | webhdfs | Arpit Gupta | Jitendra Nath Pandey |
+| [HADOOP-7724](https://issues.apache.org/jira/browse/HADOOP-7724) | hadoop-setup-conf.sh should put proxy user info into the core-site.xml | Major | . | Giridharan Kesavan | Arpit Gupta |
+| [MAPREDUCE-2764](https://issues.apache.org/jira/browse/MAPREDUCE-2764) | Fix renewal of dfs delegation tokens | Major | . | Daryn Sharp | Owen O'Malley |
+| [HADOOP-7602](https://issues.apache.org/jira/browse/HADOOP-7602) | wordcount, sort etc on har files fails with NPE | Major | . | John George | John George |
+| [HADOOP-7649](https://issues.apache.org/jira/browse/HADOOP-7649) | TestMapredGroupMappingServiceRefresh and TestRefreshUserMappings fail after HADOOP-7625 | Blocker | security, test | Kihwal Lee | Jitendra Nath Pandey |
+| [HDFS-2411](https://issues.apache.org/jira/browse/HDFS-2411) | with webhdfs enabled in secure mode the auth to local mappings are not being respected. | Major | webhdfs | Arpit Gupta | Jitendra Nath Pandey |
+| [HDFS-1197](https://issues.apache.org/jira/browse/HDFS-1197) | Blocks are considered "complete" prematurely after commitBlockSynchronization or DN restart | Major | datanode, hdfs-client, namenode | Todd Lipcon | Todd Lipcon |
+| [HADOOP-7615](https://issues.apache.org/jira/browse/HADOOP-7615) | Binary layout does not put share/hadoop/contrib/\*.jar into the class path | Major | scripts | Eric Yang | Eric Yang |
+| [HDFS-2300](https://issues.apache.org/jira/browse/HDFS-2300) | TestFileAppend4 and TestMultiThreadedSync fail on 20.append and 20-security. | Major | . | Jitendra Nath Pandey | Jitendra Nath Pandey |
+
+
+### TESTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-1242](https://issues.apache.org/jira/browse/HDFS-1242) | 0.20 append: Add test for appendFile() race solved in HDFS-142 | Major | . | Todd Lipcon | Todd Lipcon |
+| [HDFS-1252](https://issues.apache.org/jira/browse/HDFS-1252) | TestDFSConcurrentFileOperations broken in 0.20-appendj | Major | test | Todd Lipcon | Todd Lipcon |
+
+
+### SUB-TASKS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-561](https://issues.apache.org/jira/browse/HDFS-561) | Fix write pipeline READ\_TIMEOUT | Major | datanode, hdfs-client | Kan Zhang | Kan Zhang |
+| [HDFS-1057](https://issues.apache.org/jira/browse/HDFS-1057) | Concurrent readers hit ChecksumExceptions if following a writer to very end of file | Blocker | datanode | Todd Lipcon | sam rash |
+| [HDFS-2284](https://issues.apache.org/jira/browse/HDFS-2284) | Write Http access to HDFS | Major | . | Sanjay Radia | Tsz Wo Nicholas Sze |
+| [HDFS-2317](https://issues.apache.org/jira/browse/HDFS-2317) | Read access to HDFS using HTTP REST | Major | . | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [HDFS-2338](https://issues.apache.org/jira/browse/HDFS-2338) | Configuration option to enable/disable webhdfs. | Major | webhdfs | Jitendra Nath Pandey | Jitendra Nath Pandey |
+| [HDFS-2318](https://issues.apache.org/jira/browse/HDFS-2318) | Provide authentication to webhdfs using SPNEGO | Major | webhdfs | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [HDFS-2340](https://issues.apache.org/jira/browse/HDFS-2340) | Support getFileBlockLocations and getDelegationToken in webhdfs | Major | webhdfs | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [MAPREDUCE-2928](https://issues.apache.org/jira/browse/MAPREDUCE-2928) | MR-2413 improvements | Major | tasktracker | Eli Collins | Eli Collins |
+| [HDFS-2356](https://issues.apache.org/jira/browse/HDFS-2356) | webhdfs: support case insensitive query parameter names | Major | webhdfs | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [HDFS-2366](https://issues.apache.org/jira/browse/HDFS-2366) | webhdfs throws a npe when ugi is null from getDelegationToken | Major | webhdfs | Arpit Gupta | Tsz Wo Nicholas Sze |
+| [HDFS-2348](https://issues.apache.org/jira/browse/HDFS-2348) | Support getContentSummary and getFileChecksum in webhdfs | Major | webhdfs | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [HDFS-2395](https://issues.apache.org/jira/browse/HDFS-2395) | webhdfs api's should return a root element in the json response | Critical | webhdfs | Arpit Gupta | Tsz Wo Nicholas Sze |
+| [HDFS-2403](https://issues.apache.org/jira/browse/HDFS-2403) | The renewer in NamenodeWebHdfsMethods.generateDelegationToken(..) is not used | Major | . | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [HDFS-2404](https://issues.apache.org/jira/browse/HDFS-2404) | webhdfs liststatus json response is not correct | Major | webhdfs | Arpit Gupta | Suresh Srinivas |
+| [HDFS-2385](https://issues.apache.org/jira/browse/HDFS-2385) | Support delegation token renewal in webhdfs | Major | webhdfs | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [MAPREDUCE-2780](https://issues.apache.org/jira/browse/MAPREDUCE-2780) | Standardize the value of token service | Major | . | Daryn Sharp | Daryn Sharp |
+
+
+### OTHER:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-1795](https://issues.apache.org/jira/browse/HDFS-1795) | Port 0.20-append changes onto 0.20-security-203 | Major | . | Andrew Purtell | |
+
+
http://git-wip-us.apache.org/repos/asf/hadoop/blob/4b8c2b1c/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.205.0/CHANGES.0.20.205.0.md
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@@ -1,191 +0,0 @@
-
-<!---
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements. See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership. The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License. You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
--->
-# Apache Hadoop Changelog
-
-## Release 0.20.205.0 - 2011-10-06
-
-### INCOMPATIBLE CHANGES:
-
-| JIRA | Summary | Priority | Component | Reporter | Contributor |
-|:---- |:---- | :--- |:---- |:---- |:---- |
-| [HDFS-630](https://issues.apache.org/jira/browse/HDFS-630) | In DFSOutputStream.nextBlockOutputStream(), the client can exclude specific datanodes when locating the next block. | Major | hdfs-client, namenode | Ruyue Ma | Cosmin Lehene |
-| [HDFS-1554](https://issues.apache.org/jira/browse/HDFS-1554) | Append 0.20: New semantics for recoverLease | Major | . | Hairong Kuang | Hairong Kuang |
-| [HDFS-2202](https://issues.apache.org/jira/browse/HDFS-2202) | Changes to balancer bandwidth should not require datanode restart. | Major | balancer & mover, datanode | Eric Payne | Eric Payne |
-
-
-### NEW FEATURES:
-
-| JIRA | Summary | Priority | Component | Reporter | Contributor |
-|:---- |:---- | :--- |:---- |:---- |:---- |
-| [HDFS-200](https://issues.apache.org/jira/browse/HDFS-200) | In HDFS, sync() not yet guarantees data available to the new readers | Blocker | . | Tsz Wo Nicholas Sze | dhruba borthakur |
-| [HDFS-1520](https://issues.apache.org/jira/browse/HDFS-1520) | HDFS 20 append: Lightweight NameNode operation to trigger lease recovery | Major | namenode | Hairong Kuang | Hairong Kuang |
-| [HADOOP-7594](https://issues.apache.org/jira/browse/HADOOP-7594) | Support HTTP REST in HttpServer | Major | . | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
-| [HADOOP-7119](https://issues.apache.org/jira/browse/HADOOP-7119) | add Kerberos HTTP SPNEGO authentication support to Hadoop JT/NN/DN/TT web-consoles | Major | security | Alejandro Abdelnur | Alejandro Abdelnur |
-| [HADOOP-6889](https://issues.apache.org/jira/browse/HADOOP-6889) | Make RPC to have an option to timeout | Major | ipc | Hairong Kuang | John George |
-| [MAPREDUCE-2777](https://issues.apache.org/jira/browse/MAPREDUCE-2777) | Backport MAPREDUCE-220 to Hadoop 20 security branch | Major | . | Jonathan Eagles | Amar Kamat |
-
-
-### IMPROVEMENTS:
-
-| JIRA | Summary | Priority | Component | Reporter | Contributor |
-|:---- |:---- | :--- |:---- |:---- |:---- |
-| [HDFS-826](https://issues.apache.org/jira/browse/HDFS-826) | Allow a mechanism for an application to detect that datanode(s) have died in the write pipeline | Major | hdfs-client | dhruba borthakur | dhruba borthakur |
-| [HDFS-1054](https://issues.apache.org/jira/browse/HDFS-1054) | Remove unnecessary sleep after failure in nextBlockOutputStream | Major | hdfs-client | Todd Lipcon | Todd Lipcon |
-| [HDFS-1210](https://issues.apache.org/jira/browse/HDFS-1210) | DFSClient should log exception when block recovery fails | Trivial | hdfs-client | Todd Lipcon | Todd Lipcon |
-| [HDFS-1211](https://issues.apache.org/jira/browse/HDFS-1211) | 0.20 append: Block receiver should not log "rewind" packets at INFO level | Minor | datanode | Todd Lipcon | Todd Lipcon |
-| [HDFS-895](https://issues.apache.org/jira/browse/HDFS-895) | Allow hflush/sync to occur in parallel with new writes to the file | Major | hdfs-client | dhruba borthakur | Todd Lipcon |
-| [HDFS-1555](https://issues.apache.org/jira/browse/HDFS-1555) | HDFS 20 append: Disallow pipeline recovery if a file is already being lease recovered | Major | . | Hairong Kuang | Hairong Kuang |
-| [HADOOP-7343](https://issues.apache.org/jira/browse/HADOOP-7343) | backport HADOOP-7008 and HADOOP-7042 to branch-0.20-security | Minor | test | Thomas Graves | Thomas Graves |
-| [HADOOP-7432](https://issues.apache.org/jira/browse/HADOOP-7432) | Back-port HADOOP-7110 to 0.20-security | Major | . | Sherry Chen | Sherry Chen |
-| [HADOOP-7314](https://issues.apache.org/jira/browse/HADOOP-7314) | Add support for throwing UnknownHostException when a host doesn't resolve | Major | . | Jeffrey Naisbitt | Jeffrey Naisbitt |
-| [MAPREDUCE-2494](https://issues.apache.org/jira/browse/MAPREDUCE-2494) | Make the distributed cache delete entires using LRU priority | Major | distributed-cache | Robert Joseph Evans | Robert Joseph Evans |
-| [MAPREDUCE-2729](https://issues.apache.org/jira/browse/MAPREDUCE-2729) | Reducers are always counted having "pending tasks" even if they can't be scheduled yet because not enough of their mappers have completed | Major | . | Sherry Chen | Sherry Chen |
-| [HADOOP-7472](https://issues.apache.org/jira/browse/HADOOP-7472) | RPC client should deal with the IP address changes | Minor | ipc | Kihwal Lee | Kihwal Lee |
-| [MAPREDUCE-2981](https://issues.apache.org/jira/browse/MAPREDUCE-2981) | Backport trunk fairscheduler to 0.20-security branch | Major | contrib/fair-share | Matei Zaharia | Matei Zaharia |
-| [HADOOP-7707](https://issues.apache.org/jira/browse/HADOOP-7707) | improve config generator to allow users to specify proxy user, turn append on or off, turn webhdfs on or off | Major | conf | Arpit Gupta | Arpit Gupta |
-| [HADOOP-7720](https://issues.apache.org/jira/browse/HADOOP-7720) | improve the hadoop-setup-conf.sh to read in the hbase user and setup the configs | Major | conf | Arpit Gupta | Arpit Gupta |
-| [HADOOP-7655](https://issues.apache.org/jira/browse/HADOOP-7655) | provide a small validation script that smoke tests the installed cluster | Major | . | Arpit Gupta | Arpit Gupta |
-
-
-### BUG FIXES:
-
-| JIRA | Summary | Priority | Component | Reporter | Contributor |
-|:---- |:---- | :--- |:---- |:---- |:---- |
-| [HDFS-606](https://issues.apache.org/jira/browse/HDFS-606) | ConcurrentModificationException in invalidateCorruptReplicas() | Major | namenode | Konstantin Shvachko | Konstantin Shvachko |
-| [HDFS-724](https://issues.apache.org/jira/browse/HDFS-724) | Pipeline close hangs if one of the datanode is not responsive. | Blocker | datanode, hdfs-client | Tsz Wo Nicholas Sze | Hairong Kuang |
-| [HADOOP-6722](https://issues.apache.org/jira/browse/HADOOP-6722) | NetUtils.connect should check that it hasn't connected a socket to itself | Major | util | Todd Lipcon | Todd Lipcon |
-| [HDFS-142](https://issues.apache.org/jira/browse/HDFS-142) | In 0.20, move blocks being written into a blocksBeingWritten directory | Blocker | . | Raghu Angadi | dhruba borthakur |
-| [HDFS-1141](https://issues.apache.org/jira/browse/HDFS-1141) | completeFile does not check lease ownership | Blocker | namenode | Todd Lipcon | Todd Lipcon |
-| [HDFS-1207](https://issues.apache.org/jira/browse/HDFS-1207) | 0.20-append: stallReplicationWork should be volatile | Major | namenode | Todd Lipcon | Todd Lipcon |
-| [HDFS-1204](https://issues.apache.org/jira/browse/HDFS-1204) | 0.20: Lease expiration should recover single files, not entire lease holder | Major | . | Todd Lipcon | sam rash |
-| [HDFS-1118](https://issues.apache.org/jira/browse/HDFS-1118) | DFSOutputStream socket leak when cannot connect to DataNode | Major | . | Zheng Shao | Zheng Shao |
-| [HDFS-1202](https://issues.apache.org/jira/browse/HDFS-1202) | DataBlockScanner throws NPE when updated before initialized | Major | datanode | Todd Lipcon | Todd Lipcon |
-| [HADOOP-6833](https://issues.apache.org/jira/browse/HADOOP-6833) | IPC leaks call parameters when exceptions thrown | Blocker | . | Todd Lipcon | Todd Lipcon |
-| [HDFS-1346](https://issues.apache.org/jira/browse/HDFS-1346) | DFSClient receives out of order packet ack | Major | datanode, hdfs-client | Hairong Kuang | Hairong Kuang |
-| [HDFS-1164](https://issues.apache.org/jira/browse/HDFS-1164) | TestHdfsProxy is failing | Major | contrib/hdfsproxy | Eli Collins | Todd Lipcon |
-| [HDFS-988](https://issues.apache.org/jira/browse/HDFS-988) | saveNamespace race can corrupt the edits log | Blocker | namenode | dhruba borthakur | Eli Collins |
-| [HDFS-1836](https://issues.apache.org/jira/browse/HDFS-1836) | Thousand of CLOSE\_WAIT socket | Major | hdfs-client | Dennis Cheung | Bharath Mundlapudi |
-| [HADOOP-7400](https://issues.apache.org/jira/browse/HADOOP-7400) | HdfsProxyTests fails when the -Dtest.build.dir and -Dbuild.test is set | Major | build | Giridharan Kesavan | Giridharan Kesavan |
-| [MAPREDUCE-2650](https://issues.apache.org/jira/browse/MAPREDUCE-2650) | back-port MAPREDUCE-2238 to 0.20-security | Major | . | Sherry Chen | Sherry Chen |
-| [MAPREDUCE-2324](https://issues.apache.org/jira/browse/MAPREDUCE-2324) | Job should fail if a reduce task can't be scheduled anywhere | Major | . | Todd Lipcon | Robert Joseph Evans |
-| [MAPREDUCE-2187](https://issues.apache.org/jira/browse/MAPREDUCE-2187) | map tasks timeout during sorting | Major | . | Gianmarco De Francisci Morales | Anupam Seth |
-| [HDFS-2053](https://issues.apache.org/jira/browse/HDFS-2053) | Bug in INodeDirectory#computeContentSummary warning | Minor | namenode | Michael Noll | Michael Noll |
-| [HDFS-2117](https://issues.apache.org/jira/browse/HDFS-2117) | DiskChecker#mkdirsWithExistsAndPermissionCheck may return true even when the dir is not created | Minor | datanode | Eli Collins | Eli Collins |
-| [MAPREDUCE-2705](https://issues.apache.org/jira/browse/MAPREDUCE-2705) | tasks localized and launched serially by TaskLauncher - causing other tasks to be delayed | Major | tasktracker | Thomas Graves | Thomas Graves |
-| [HDFS-2190](https://issues.apache.org/jira/browse/HDFS-2190) | NN fails to start if it encounters an empty or malformed fstime file | Major | namenode | Aaron T. Myers | Aaron T. Myers |
-| [MAPREDUCE-2489](https://issues.apache.org/jira/browse/MAPREDUCE-2489) | Jobsplits with random hostnames can make the queue unusable | Major | jobtracker | Jeffrey Naisbitt | Jeffrey Naisbitt |
-| [HDFS-2259](https://issues.apache.org/jira/browse/HDFS-2259) | DN web-UI doesn't work with paths that contain html | Minor | datanode | Eli Collins | Eli Collins |
-| [MAPREDUCE-2852](https://issues.apache.org/jira/browse/MAPREDUCE-2852) | Jira for YDH bug 2854624 | Major | tasktracker | Eli Collins | Kihwal Lee |
-| [HADOOP-7539](https://issues.apache.org/jira/browse/HADOOP-7539) | merge hadoop archive goodness from trunk to .20 | Major | . | John George | John George |
-| [HADOOP-7596](https://issues.apache.org/jira/browse/HADOOP-7596) | Enable jsvc to work with Hadoop RPM package | Major | build | Eric Yang | Eric Yang |
-| [HDFS-2309](https://issues.apache.org/jira/browse/HDFS-2309) | TestRenameWhileOpen fails in branch-0.20-security | Major | . | Jitendra Nath Pandey | Jitendra Nath Pandey |
-| [HDFS-2320](https://issues.apache.org/jira/browse/HDFS-2320) | Make merged protocol changes from 0.20-append to 0.20-security compatible with previous releases. | Major | datanode, hdfs-client, namenode | Suresh Srinivas | Suresh Srinivas |
-| [MAPREDUCE-2610](https://issues.apache.org/jira/browse/MAPREDUCE-2610) | Inconsistent API JobClient.getQueueAclsForCurrentUser | Major | client | Joep Rottinghuis | Joep Rottinghuis |
-| [MAPREDUCE-2915](https://issues.apache.org/jira/browse/MAPREDUCE-2915) | LinuxTaskController does not work when JniBasedUnixGroupsNetgroupMapping or JniBasedUnixGroupsMapping is enabled | Major | task-controller | Kihwal Lee | Kihwal Lee |
-| [HADOOP-7610](https://issues.apache.org/jira/browse/HADOOP-7610) | /etc/profile.d does not exist on Debian | Major | scripts | Eric Yang | Eric Yang |
-| [HADOOP-7599](https://issues.apache.org/jira/browse/HADOOP-7599) | Improve hadoop setup conf script to setup secure Hadoop cluster | Major | scripts | Eric Yang | Eric Yang |
-| [HADOOP-7626](https://issues.apache.org/jira/browse/HADOOP-7626) | Allow overwrite of HADOOP\_CLASSPATH and HADOOP\_OPTS | Major | scripts | Eric Yang | Eric Yang |
-| [MAPREDUCE-2549](https://issues.apache.org/jira/browse/MAPREDUCE-2549) | Potential resource leaks in HadoopServer.java, RunOnHadoopWizard.java and Environment.java | Major | contrib/eclipse-plugin, contrib/streaming | Devaraj K | Devaraj K |
-| [HDFS-2328](https://issues.apache.org/jira/browse/HDFS-2328) | hftp throws NPE if security is not enabled on remote cluster | Critical | . | Daryn Sharp | Owen O'Malley |
-| [HDFS-1779](https://issues.apache.org/jira/browse/HDFS-1779) | After NameNode restart , Clients can not read partial files even after client invokes Sync. | Major | datanode, namenode | Uma Maheswara Rao G | Uma Maheswara Rao G |
-| [HDFS-2331](https://issues.apache.org/jira/browse/HDFS-2331) | Hdfs compilation fails | Major | hdfs-client | Abhijit Suresh Shingate | Abhijit Suresh Shingate |
-| [HDFS-2333](https://issues.apache.org/jira/browse/HDFS-2333) | HDFS-2284 introduced 2 findbugs warnings on trunk | Major | . | Ivan Kelly | Tsz Wo Nicholas Sze |
-| [HADOOP-7625](https://issues.apache.org/jira/browse/HADOOP-7625) | TestDelegationToken is failing in 205 | Major | . | Owen O'Malley | Owen O'Malley |
-| [HADOOP-7637](https://issues.apache.org/jira/browse/HADOOP-7637) | Fair scheduler configuration file is not bundled in RPM | Major | build | Eric Yang | Eric Yang |
-| [HADOOP-7631](https://issues.apache.org/jira/browse/HADOOP-7631) | In mapred-site.xml, stream.tmpdir is mapped to ${mapred.temp.dir} which is undeclared. | Major | conf | Ramya Sunil | Eric Yang |
-| [HADOOP-7630](https://issues.apache.org/jira/browse/HADOOP-7630) | hadoop-metrics2.properties should have a property \*.period set to a default value foe metrics | Major | conf | Arpit Gupta | Eric Yang |
-| [HADOOP-7633](https://issues.apache.org/jira/browse/HADOOP-7633) | log4j.properties should be added to the hadoop conf on deploy | Major | conf | Arpit Gupta | Eric Yang |
-| [HADOOP-7644](https://issues.apache.org/jira/browse/HADOOP-7644) | Fix the delegation token tests to use the new style renewers | Blocker | security | Owen O'Malley | Owen O'Malley |
-| [MAPREDUCE-3076](https://issues.apache.org/jira/browse/MAPREDUCE-3076) | TestSleepJob fails | Blocker | test | Arun C Murthy | Arun C Murthy |
-| [HADOOP-7645](https://issues.apache.org/jira/browse/HADOOP-7645) | HTTP auth tests requiring Kerberos infrastructure are not disabled on branch-0.20-security | Blocker | security | Aaron T. Myers | Jitendra Nath Pandey |
-| [HADOOP-7674](https://issues.apache.org/jira/browse/HADOOP-7674) | TestKerberosName fails in 20 branch. | Major | . | Jitendra Nath Pandey | Jitendra Nath Pandey |
-| [HDFS-2342](https://issues.apache.org/jira/browse/HDFS-2342) | TestSleepJob and TestHdfsProxy broken after HDFS-2284 | Blocker | build | Kihwal Lee | Tsz Wo Nicholas Sze |
-| [HDFS-2325](https://issues.apache.org/jira/browse/HDFS-2325) | Fuse-DFS fails to build on Hadoop 20.203.0 | Blocker | fuse-dfs, libhdfs | Charles Earl | Kihwal Lee |
-| [HADOOP-7679](https://issues.apache.org/jira/browse/HADOOP-7679) | log4j.properties templates does not define mapred.jobsummary.logger | Major | conf | Ramya Sunil | Ramya Sunil |
-| [HDFS-2359](https://issues.apache.org/jira/browse/HDFS-2359) | NPE found in Datanode log while Disk failed during different HDFS operation | Major | datanode | Rajit Saha | Jonathan Eagles |
-| [HDFS-2375](https://issues.apache.org/jira/browse/HDFS-2375) | TestFileAppend4 fails in 0.20.205 branch | Blocker | hdfs-client | Suresh Srinivas | Suresh Srinivas |
-| [MAPREDUCE-3081](https://issues.apache.org/jira/browse/MAPREDUCE-3081) | Change the name format for hadoop core and vaidya jar to be hadoop-{core/vaidya}-{version}.jar in vaidya.sh | Major | contrib/vaidya | vitthal (Suhas) Gogate | |
-| [HDFS-2373](https://issues.apache.org/jira/browse/HDFS-2373) | Commands using webhdfs and hftp print unnecessary debug information on the console with security enabled | Major | webhdfs | Arpit Gupta | Arpit Gupta |
-| [HDFS-2368](https://issues.apache.org/jira/browse/HDFS-2368) | defaults created for web keytab and principal, these properties should not have defaults | Major | . | Arpit Gupta | Tsz Wo Nicholas Sze |
-| [HDFS-2361](https://issues.apache.org/jira/browse/HDFS-2361) | hftp is broken | Critical | namenode | Rajit Saha | Jitendra Nath Pandey |
-| [HADOOP-7683](https://issues.apache.org/jira/browse/HADOOP-7683) | hdfs-site.xml template has properties that are not used in 20 | Minor | . | Arpit Gupta | Arpit Gupta |
-| [HDFS-1260](https://issues.apache.org/jira/browse/HDFS-1260) | 0.20: Block lost when multiple DNs trying to recover it to different genstamps | Critical | . | Todd Lipcon | Todd Lipcon |
-| [HDFS-1186](https://issues.apache.org/jira/browse/HDFS-1186) | 0.20: DNs should interrupt writers at start of recovery | Blocker | datanode | Todd Lipcon | Todd Lipcon |
-| [HDFS-1218](https://issues.apache.org/jira/browse/HDFS-1218) | 20 append: Blocks recovered on startup should be treated with lower priority during block synchronization | Critical | datanode | Todd Lipcon | Todd Lipcon |
-| [HADOOP-7691](https://issues.apache.org/jira/browse/HADOOP-7691) | hadoop deb pkg should take a diff group id | Major | . | Giridharan Kesavan | Eric Yang |
-| [HADOOP-7603](https://issues.apache.org/jira/browse/HADOOP-7603) | Set default hdfs, mapred uid, and hadoop group gid for RPM packages | Major | . | Eric Yang | Eric Yang |
-| [HADOOP-7658](https://issues.apache.org/jira/browse/HADOOP-7658) | to fix hadoop config template | Major | . | Giridharan Kesavan | Eric Yang |
-| [HADOOP-7684](https://issues.apache.org/jira/browse/HADOOP-7684) | jobhistory server and secondarynamenode should have init.d script | Major | scripts | Eric Yang | Eric Yang |
-| [MAPREDUCE-3112](https://issues.apache.org/jira/browse/MAPREDUCE-3112) | Calling hadoop cli inside mapreduce job leads to errors | Major | contrib/streaming | Eric Yang | Eric Yang |
-| [HADOOP-7715](https://issues.apache.org/jira/browse/HADOOP-7715) | see log4j Error when running mr jobs and certain dfs calls | Major | conf | Arpit Gupta | Eric Yang |
-| [HADOOP-7711](https://issues.apache.org/jira/browse/HADOOP-7711) | hadoop-env.sh generated from templates has duplicate info | Major | conf | Arpit Gupta | Arpit Gupta |
-| [HADOOP-7681](https://issues.apache.org/jira/browse/HADOOP-7681) | log4j.properties is missing properties for security audit and hdfs audit should be changed to info | Minor | conf | Arpit Gupta | Arpit Gupta |
-| [HADOOP-7708](https://issues.apache.org/jira/browse/HADOOP-7708) | config generator does not update the properties file if on exists already | Critical | conf | Arpit Gupta | Eric Yang |
-| [HDFS-2358](https://issues.apache.org/jira/browse/HDFS-2358) | NPE when the default filesystem's uri has no authority | Major | namenode | Rajit Saha | Daryn Sharp |
-| [HDFS-2392](https://issues.apache.org/jira/browse/HDFS-2392) | Dist with hftp is failing again | Critical | namenode | Rajit Saha | Daryn Sharp |
-| [HDFS-2408](https://issues.apache.org/jira/browse/HDFS-2408) | DFSClient#getNumCurrentReplicas is package private in 205 but public in branch-0.20-append | Blocker | hdfs-client | stack | stack |
-| [HADOOP-7721](https://issues.apache.org/jira/browse/HADOOP-7721) | dfs.web.authentication.kerberos.principal expects the full hostname and does not replace \_HOST with the hostname | Major | . | Arpit Gupta | Jitendra Nath Pandey |
-| [HDFS-2405](https://issues.apache.org/jira/browse/HDFS-2405) | hadoop dfs command with webhdfs fails on secure hadoop | Critical | webhdfs | Arpit Gupta | Jitendra Nath Pandey |
-| [HADOOP-7724](https://issues.apache.org/jira/browse/HADOOP-7724) | hadoop-setup-conf.sh should put proxy user info into the core-site.xml | Major | . | Giridharan Kesavan | Arpit Gupta |
-| [MAPREDUCE-2764](https://issues.apache.org/jira/browse/MAPREDUCE-2764) | Fix renewal of dfs delegation tokens | Major | . | Daryn Sharp | Owen O'Malley |
-| [HADOOP-7602](https://issues.apache.org/jira/browse/HADOOP-7602) | wordcount, sort etc on har files fails with NPE | Major | . | John George | John George |
-| [HADOOP-7649](https://issues.apache.org/jira/browse/HADOOP-7649) | TestMapredGroupMappingServiceRefresh and TestRefreshUserMappings fail after HADOOP-7625 | Blocker | security, test | Kihwal Lee | Jitendra Nath Pandey |
-| [HDFS-2411](https://issues.apache.org/jira/browse/HDFS-2411) | with webhdfs enabled in secure mode the auth to local mappings are not being respected. | Major | webhdfs | Arpit Gupta | Jitendra Nath Pandey |
-| [HDFS-1197](https://issues.apache.org/jira/browse/HDFS-1197) | Blocks are considered "complete" prematurely after commitBlockSynchronization or DN restart | Major | datanode, hdfs-client, namenode | Todd Lipcon | Todd Lipcon |
-| [HADOOP-7615](https://issues.apache.org/jira/browse/HADOOP-7615) | Binary layout does not put share/hadoop/contrib/\*.jar into the class path | Major | scripts | Eric Yang | Eric Yang |
-| [HDFS-2300](https://issues.apache.org/jira/browse/HDFS-2300) | TestFileAppend4 and TestMultiThreadedSync fail on 20.append and 20-security. | Major | . | Jitendra Nath Pandey | Jitendra Nath Pandey |
-
-
-### TESTS:
-
-| JIRA | Summary | Priority | Component | Reporter | Contributor |
-|:---- |:---- | :--- |:---- |:---- |:---- |
-| [HDFS-1242](https://issues.apache.org/jira/browse/HDFS-1242) | 0.20 append: Add test for appendFile() race solved in HDFS-142 | Major | . | Todd Lipcon | Todd Lipcon |
-| [HDFS-1252](https://issues.apache.org/jira/browse/HDFS-1252) | TestDFSConcurrentFileOperations broken in 0.20-appendj | Major | test | Todd Lipcon | Todd Lipcon |
-
-
-### SUB-TASKS:
-
-| JIRA | Summary | Priority | Component | Reporter | Contributor |
-|:---- |:---- | :--- |:---- |:---- |:---- |
-| [HDFS-561](https://issues.apache.org/jira/browse/HDFS-561) | Fix write pipeline READ\_TIMEOUT | Major | datanode, hdfs-client | Kan Zhang | Kan Zhang |
-| [HDFS-1057](https://issues.apache.org/jira/browse/HDFS-1057) | Concurrent readers hit ChecksumExceptions if following a writer to very end of file | Blocker | datanode | Todd Lipcon | sam rash |
-| [HDFS-2284](https://issues.apache.org/jira/browse/HDFS-2284) | Write Http access to HDFS | Major | . | Sanjay Radia | Tsz Wo Nicholas Sze |
-| [HDFS-2317](https://issues.apache.org/jira/browse/HDFS-2317) | Read access to HDFS using HTTP REST | Major | . | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
-| [HDFS-2338](https://issues.apache.org/jira/browse/HDFS-2338) | Configuration option to enable/disable webhdfs. | Major | webhdfs | Jitendra Nath Pandey | Jitendra Nath Pandey |
-| [HDFS-2318](https://issues.apache.org/jira/browse/HDFS-2318) | Provide authentication to webhdfs using SPNEGO | Major | webhdfs | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
-| [HDFS-2340](https://issues.apache.org/jira/browse/HDFS-2340) | Support getFileBlockLocations and getDelegationToken in webhdfs | Major | webhdfs | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
-| [MAPREDUCE-2928](https://issues.apache.org/jira/browse/MAPREDUCE-2928) | MR-2413 improvements | Major | tasktracker | Eli Collins | Eli Collins |
-| [HDFS-2356](https://issues.apache.org/jira/browse/HDFS-2356) | webhdfs: support case insensitive query parameter names | Major | webhdfs | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
-| [HDFS-2366](https://issues.apache.org/jira/browse/HDFS-2366) | webhdfs throws a npe when ugi is null from getDelegationToken | Major | webhdfs | Arpit Gupta | Tsz Wo Nicholas Sze |
-| [HDFS-2348](https://issues.apache.org/jira/browse/HDFS-2348) | Support getContentSummary and getFileChecksum in webhdfs | Major | webhdfs | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
-| [HDFS-2395](https://issues.apache.org/jira/browse/HDFS-2395) | webhdfs api's should return a root element in the json response | Critical | webhdfs | Arpit Gupta | Tsz Wo Nicholas Sze |
-| [HDFS-2403](https://issues.apache.org/jira/browse/HDFS-2403) | The renewer in NamenodeWebHdfsMethods.generateDelegationToken(..) is not used | Major | . | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
-| [HDFS-2404](https://issues.apache.org/jira/browse/HDFS-2404) | webhdfs liststatus json response is not correct | Major | webhdfs | Arpit Gupta | Suresh Srinivas |
-| [HDFS-2385](https://issues.apache.org/jira/browse/HDFS-2385) | Support delegation token renewal in webhdfs | Major | webhdfs | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
-| [MAPREDUCE-2780](https://issues.apache.org/jira/browse/MAPREDUCE-2780) | Standardize the value of token service | Major | . | Daryn Sharp | Daryn Sharp |
-
-
-### OTHER:
-
-| JIRA | Summary | Priority | Component | Reporter | Contributor |
-|:---- |:---- | :--- |:---- |:---- |:---- |
-| [HDFS-1795](https://issues.apache.org/jira/browse/HDFS-1795) | Port 0.20-append changes onto 0.20-security-203 | Major | . | Andrew Purtell | |
-
-
http://git-wip-us.apache.org/repos/asf/hadoop/blob/4b8c2b1c/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.3/CHANGELOG.0.20.3.md
----------------------------------------------------------------------
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.3/CHANGELOG.0.20.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.3/CHANGELOG.0.20.3.md
new file mode 100644
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+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.3/CHANGELOG.0.20.3.md
@@ -0,0 +1,91 @@
+
+<!---
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+-->
+# Apache Hadoop Changelog
+
+## Release 0.20.3 - Unreleased (as of 2018-09-01)
+
+### INCOMPATIBLE CHANGES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-6382](https://issues.apache.org/jira/browse/HADOOP-6382) | publish hadoop jars to apache mvn repo. | Major | build | Giridharan Kesavan | Giridharan Kesavan |
+| [HDFS-132](https://issues.apache.org/jira/browse/HDFS-132) | Namenode in Safemode reports to Simon non-zero number of deleted files during startup | Minor | namenode | Hairong Kuang | Suresh Srinivas |
+| [HADOOP-6701](https://issues.apache.org/jira/browse/HADOOP-6701) | Incorrect exit codes for "dfs -chown", "dfs -chgrp" | Minor | fs | Ravi Phulari | Ravi Phulari |
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [MAPREDUCE-1832](https://issues.apache.org/jira/browse/MAPREDUCE-1832) | Support for file sizes less than 1MB in DFSIO benchmark. | Major | benchmarks | Konstantin Shvachko | Konstantin Shvachko |
+| [HADOOP-7240](https://issues.apache.org/jira/browse/HADOOP-7240) | Update eclipse .classpath template | Major | . | Aaron T. Myers | Aaron T. Myers |
+| [MAPREDUCE-1734](https://issues.apache.org/jira/browse/MAPREDUCE-1734) | Un-deprecate the old MapReduce API in the 0.20 branch | Blocker | documentation | Tom White | Todd Lipcon |
+| [HDFS-1013](https://issues.apache.org/jira/browse/HDFS-1013) | Miscellaneous improvements to HTML markup for web UIs | Minor | . | Todd Lipcon | Eugene Koontz |
+| [HADOOP-6882](https://issues.apache.org/jira/browse/HADOOP-6882) | Update the patch level of Jetty | Major | . | Owen O'Malley | Owen O'Malley |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-15](https://issues.apache.org/jira/browse/HDFS-15) | Rack replication policy can be violated for over replicated blocks | Critical | . | Hairong Kuang | Jitendra Nath Pandey |
+| [MAPREDUCE-1522](https://issues.apache.org/jira/browse/MAPREDUCE-1522) | FileInputFormat may change the file system of an input path | Blocker | . | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [MAPREDUCE-1407](https://issues.apache.org/jira/browse/MAPREDUCE-1407) | Invalid example in the documentation of org.apache.hadoop.mapreduce.{Mapper,Reducer} | Trivial | documentation | Benoit Sigoure | Benoit Sigoure |
+| [HDFS-955](https://issues.apache.org/jira/browse/HDFS-955) | FSImage.saveFSImage can lose edits | Blocker | namenode | Todd Lipcon | Konstantin Shvachko |
+| [HDFS-1041](https://issues.apache.org/jira/browse/HDFS-1041) | DFSClient does not retry in getFileChecksum(..) | Major | hdfs-client | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [HDFS-909](https://issues.apache.org/jira/browse/HDFS-909) | Race condition between rollEditLog or rollFSImage ant FSEditsLog.write operations corrupts edits log | Blocker | namenode | Cosmin Lehene | Todd Lipcon |
+| [HADOOP-6702](https://issues.apache.org/jira/browse/HADOOP-6702) | Incorrect exit codes for "dfs -chown", "dfs -chgrp" when input is given in wildcard format. | Minor | fs | Ravi Phulari | Ravi Phulari |
+| [HADOOP-6760](https://issues.apache.org/jira/browse/HADOOP-6760) | WebServer shouldn't increase port number in case of negative port setting caused by Jetty's race | Major | . | Konstantin Boudnik | Konstantin Boudnik |
+| [MAPREDUCE-1372](https://issues.apache.org/jira/browse/MAPREDUCE-1372) | ConcurrentModificationException in JobInProgress | Blocker | jobtracker | Amareshwari Sriramadasu | Dick King |
+| [MAPREDUCE-118](https://issues.apache.org/jira/browse/MAPREDUCE-118) | Job.getJobID() will always return null | Blocker | client | Amar Kamat | Amareshwari Sriramadasu |
+| [MAPREDUCE-1880](https://issues.apache.org/jira/browse/MAPREDUCE-1880) | "java.lang.ArithmeticException: Non-terminating decimal expansion; no exact representable decimal result." while running "hadoop jar hadoop-0.20.1+169.89-examples.jar pi 4 30" | Minor | examples | Victor Pakhomov | Tsz Wo Nicholas Sze |
+| [HDFS-1258](https://issues.apache.org/jira/browse/HDFS-1258) | Clearing namespace quota on "/" corrupts FS image | Blocker | namenode | Aaron T. Myers | Aaron T. Myers |
+| [HADOOP-6881](https://issues.apache.org/jira/browse/HADOOP-6881) | The efficient comparators aren't always used except for BytesWritable and Text | Major | . | Owen O'Malley | Owen O'Malley |
+| [HADOOP-6833](https://issues.apache.org/jira/browse/HADOOP-6833) | IPC leaks call parameters when exceptions thrown | Blocker | . | Todd Lipcon | Todd Lipcon |
+| [HADOOP-6928](https://issues.apache.org/jira/browse/HADOOP-6928) | Fix BooleanWritable comparator in 0.20 | Major | io | Owen O'Malley | Johannes Zillmann |
+| [HDFS-1404](https://issues.apache.org/jira/browse/HDFS-1404) | TestNodeCount logic incorrect in branch-0.20 | Minor | namenode, test | Todd Lipcon | Todd Lipcon |
+| [MAPREDUCE-1280](https://issues.apache.org/jira/browse/MAPREDUCE-1280) | Eclipse Plugin does not work with Eclipse Ganymede (3.4) | Major | . | Aaron Kimball | Alex Kozlov |
+| [HADOOP-6724](https://issues.apache.org/jira/browse/HADOOP-6724) | IPC doesn't properly handle IOEs thrown by socket factory | Major | ipc | Todd Lipcon | Todd Lipcon |
+| [HDFS-1240](https://issues.apache.org/jira/browse/HDFS-1240) | TestDFSShell failing in branch-20 | Critical | test | Todd Lipcon | Todd Lipcon |
+| [HDFS-727](https://issues.apache.org/jira/browse/HDFS-727) | bug setting block size hdfsOpenFile | Blocker | libhdfs | Eli Collins | Eli Collins |
+| [HDFS-908](https://issues.apache.org/jira/browse/HDFS-908) | TestDistributedFileSystem fails with Wrong FS on weird hosts | Minor | test | Todd Lipcon | Todd Lipcon |
+| [HDFS-1377](https://issues.apache.org/jira/browse/HDFS-1377) | Quota bug for partial blocks allows quotas to be violated | Blocker | namenode | Eli Collins | Eli Collins |
+| [HDFS-1406](https://issues.apache.org/jira/browse/HDFS-1406) | TestCLI fails on Ubuntu with default /etc/hosts | Minor | . | Todd Lipcon | Konstantin Boudnik |
+| [MAPREDUCE-2262](https://issues.apache.org/jira/browse/MAPREDUCE-2262) | Capacity Scheduler unit tests fail with class not found | Major | capacity-sched | Owen O'Malley | Owen O'Malley |
+| [HADOOP-6923](https://issues.apache.org/jira/browse/HADOOP-6923) | Native Libraries do not load if a different platform signature is returned from org.apache.hadoop.util.PlatformName | Major | native | Stephen Watt | Stephen Watt |
+| [HDFS-1543](https://issues.apache.org/jira/browse/HDFS-1543) | Reduce dev. cycle time by moving system testing artifacts from default build and push to maven for HDFS | Major | . | Arun C Murthy | Luke Lu |
+| [HDFS-1836](https://issues.apache.org/jira/browse/HDFS-1836) | Thousand of CLOSE\_WAIT socket | Major | hdfs-client | Dennis Cheung | Bharath Mundlapudi |
+| [HADOOP-7116](https://issues.apache.org/jira/browse/HADOOP-7116) | raise contrib junit test jvm memory size to 512mb | Major | test | Owen O'Malley | Owen O'Malley |
+
+
+### TESTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-6637](https://issues.apache.org/jira/browse/HADOOP-6637) | Benchmark overhead of RPC session establishment | Major | benchmarks | Konstantin Shvachko | Konstantin Shvachko |
+
+
+### OTHER:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-1286](https://issues.apache.org/jira/browse/HDFS-1286) | Dry entropy pool on Hudson boxes causing test timeouts | Major | test | Todd Lipcon | Konstantin Boudnik |
+| [HADOOP-7372](https://issues.apache.org/jira/browse/HADOOP-7372) | Remove ref of 20.3 release from branch-0.20 CHANGES.txt | Major | documentation | Eli Collins | Eli Collins |
+
+
http://git-wip-us.apache.org/repos/asf/hadoop/blob/4b8c2b1c/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.3/CHANGES.0.20.3.md
----------------------------------------------------------------------
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.3/CHANGES.0.20.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.3/CHANGES.0.20.3.md
deleted file mode 100644
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--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.3/CHANGES.0.20.3.md
+++ /dev/null
@@ -1,91 +0,0 @@
-
-<!---
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements. See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership. The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License. You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
--->
-# Apache Hadoop Changelog
-
-## Release 0.20.3 - Unreleased (as of 2017-08-28)
-
-### INCOMPATIBLE CHANGES:
-
-| JIRA | Summary | Priority | Component | Reporter | Contributor |
-|:---- |:---- | :--- |:---- |:---- |:---- |
-| [HADOOP-6382](https://issues.apache.org/jira/browse/HADOOP-6382) | publish hadoop jars to apache mvn repo. | Major | build | Giridharan Kesavan | Giridharan Kesavan |
-| [HDFS-132](https://issues.apache.org/jira/browse/HDFS-132) | Namenode in Safemode reports to Simon non-zero number of deleted files during startup | Minor | namenode | Hairong Kuang | Suresh Srinivas |
-| [HADOOP-6701](https://issues.apache.org/jira/browse/HADOOP-6701) | Incorrect exit codes for "dfs -chown", "dfs -chgrp" | Minor | fs | Ravi Phulari | Ravi Phulari |
-
-
-### IMPROVEMENTS:
-
-| JIRA | Summary | Priority | Component | Reporter | Contributor |
-|:---- |:---- | :--- |:---- |:---- |:---- |
-| [MAPREDUCE-1832](https://issues.apache.org/jira/browse/MAPREDUCE-1832) | Support for file sizes less than 1MB in DFSIO benchmark. | Major | benchmarks | Konstantin Shvachko | Konstantin Shvachko |
-| [HADOOP-7240](https://issues.apache.org/jira/browse/HADOOP-7240) | Update eclipse .classpath template | Major | . | Aaron T. Myers | Aaron T. Myers |
-| [MAPREDUCE-1734](https://issues.apache.org/jira/browse/MAPREDUCE-1734) | Un-deprecate the old MapReduce API in the 0.20 branch | Blocker | documentation | Tom White | Todd Lipcon |
-| [HDFS-1013](https://issues.apache.org/jira/browse/HDFS-1013) | Miscellaneous improvements to HTML markup for web UIs | Minor | . | Todd Lipcon | Eugene Koontz |
-| [HADOOP-6882](https://issues.apache.org/jira/browse/HADOOP-6882) | Update the patch level of Jetty | Major | . | Owen O'Malley | Owen O'Malley |
-
-
-### BUG FIXES:
-
-| JIRA | Summary | Priority | Component | Reporter | Contributor |
-|:---- |:---- | :--- |:---- |:---- |:---- |
-| [HDFS-15](https://issues.apache.org/jira/browse/HDFS-15) | Rack replication policy can be violated for over replicated blocks | Critical | . | Hairong Kuang | Jitendra Nath Pandey |
-| [MAPREDUCE-1522](https://issues.apache.org/jira/browse/MAPREDUCE-1522) | FileInputFormat may change the file system of an input path | Blocker | . | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
-| [MAPREDUCE-1407](https://issues.apache.org/jira/browse/MAPREDUCE-1407) | Invalid example in the documentation of org.apache.hadoop.mapreduce.{Mapper,Reducer} | Trivial | documentation | Benoit Sigoure | Benoit Sigoure |
-| [HDFS-955](https://issues.apache.org/jira/browse/HDFS-955) | FSImage.saveFSImage can lose edits | Blocker | namenode | Todd Lipcon | Konstantin Shvachko |
-| [HDFS-1041](https://issues.apache.org/jira/browse/HDFS-1041) | DFSClient does not retry in getFileChecksum(..) | Major | hdfs-client | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
-| [HDFS-909](https://issues.apache.org/jira/browse/HDFS-909) | Race condition between rollEditLog or rollFSImage ant FSEditsLog.write operations corrupts edits log | Blocker | namenode | Cosmin Lehene | Todd Lipcon |
-| [HADOOP-6702](https://issues.apache.org/jira/browse/HADOOP-6702) | Incorrect exit codes for "dfs -chown", "dfs -chgrp" when input is given in wildcard format. | Minor | fs | Ravi Phulari | Ravi Phulari |
-| [HADOOP-6760](https://issues.apache.org/jira/browse/HADOOP-6760) | WebServer shouldn't increase port number in case of negative port setting caused by Jetty's race | Major | . | Konstantin Boudnik | Konstantin Boudnik |
-| [MAPREDUCE-1372](https://issues.apache.org/jira/browse/MAPREDUCE-1372) | ConcurrentModificationException in JobInProgress | Blocker | jobtracker | Amareshwari Sriramadasu | Dick King |
-| [MAPREDUCE-118](https://issues.apache.org/jira/browse/MAPREDUCE-118) | Job.getJobID() will always return null | Blocker | client | Amar Kamat | Amareshwari Sriramadasu |
-| [MAPREDUCE-1880](https://issues.apache.org/jira/browse/MAPREDUCE-1880) | "java.lang.ArithmeticException: Non-terminating decimal expansion; no exact representable decimal result." while running "hadoop jar hadoop-0.20.1+169.89-examples.jar pi 4 30" | Minor | examples | Victor Pakhomov | Tsz Wo Nicholas Sze |
-| [HDFS-1258](https://issues.apache.org/jira/browse/HDFS-1258) | Clearing namespace quota on "/" corrupts FS image | Blocker | namenode | Aaron T. Myers | Aaron T. Myers |
-| [HADOOP-6881](https://issues.apache.org/jira/browse/HADOOP-6881) | The efficient comparators aren't always used except for BytesWritable and Text | Major | . | Owen O'Malley | Owen O'Malley |
-| [HADOOP-6833](https://issues.apache.org/jira/browse/HADOOP-6833) | IPC leaks call parameters when exceptions thrown | Blocker | . | Todd Lipcon | Todd Lipcon |
-| [HADOOP-6928](https://issues.apache.org/jira/browse/HADOOP-6928) | Fix BooleanWritable comparator in 0.20 | Major | io | Owen O'Malley | Johannes Zillmann |
-| [HDFS-1404](https://issues.apache.org/jira/browse/HDFS-1404) | TestNodeCount logic incorrect in branch-0.20 | Minor | namenode, test | Todd Lipcon | Todd Lipcon |
-| [MAPREDUCE-1280](https://issues.apache.org/jira/browse/MAPREDUCE-1280) | Eclipse Plugin does not work with Eclipse Ganymede (3.4) | Major | . | Aaron Kimball | Alex Kozlov |
-| [HADOOP-6724](https://issues.apache.org/jira/browse/HADOOP-6724) | IPC doesn't properly handle IOEs thrown by socket factory | Major | ipc | Todd Lipcon | Todd Lipcon |
-| [HDFS-1240](https://issues.apache.org/jira/browse/HDFS-1240) | TestDFSShell failing in branch-20 | Critical | test | Todd Lipcon | Todd Lipcon |
-| [HDFS-727](https://issues.apache.org/jira/browse/HDFS-727) | bug setting block size hdfsOpenFile | Blocker | libhdfs | Eli Collins | Eli Collins |
-| [HDFS-908](https://issues.apache.org/jira/browse/HDFS-908) | TestDistributedFileSystem fails with Wrong FS on weird hosts | Minor | test | Todd Lipcon | Todd Lipcon |
-| [HDFS-1377](https://issues.apache.org/jira/browse/HDFS-1377) | Quota bug for partial blocks allows quotas to be violated | Blocker | namenode | Eli Collins | Eli Collins |
-| [HDFS-1406](https://issues.apache.org/jira/browse/HDFS-1406) | TestCLI fails on Ubuntu with default /etc/hosts | Minor | . | Todd Lipcon | Konstantin Boudnik |
-| [MAPREDUCE-2262](https://issues.apache.org/jira/browse/MAPREDUCE-2262) | Capacity Scheduler unit tests fail with class not found | Major | capacity-sched | Owen O'Malley | Owen O'Malley |
-| [HADOOP-6923](https://issues.apache.org/jira/browse/HADOOP-6923) | Native Libraries do not load if a different platform signature is returned from org.apache.hadoop.util.PlatformName | Major | native | Stephen Watt | Stephen Watt |
-| [HDFS-1543](https://issues.apache.org/jira/browse/HDFS-1543) | Reduce dev. cycle time by moving system testing artifacts from default build and push to maven for HDFS | Major | . | Arun C Murthy | Luke Lu |
-| [HDFS-1836](https://issues.apache.org/jira/browse/HDFS-1836) | Thousand of CLOSE\_WAIT socket | Major | hdfs-client | Dennis Cheung | Bharath Mundlapudi |
-| [HADOOP-7116](https://issues.apache.org/jira/browse/HADOOP-7116) | raise contrib junit test jvm memory size to 512mb | Major | test | Owen O'Malley | Owen O'Malley |
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-
-### TESTS:
-
-| JIRA | Summary | Priority | Component | Reporter | Contributor |
-|:---- |:---- | :--- |:---- |:---- |:---- |
-| [HADOOP-6637](https://issues.apache.org/jira/browse/HADOOP-6637) | Benchmark overhead of RPC session establishment | Major | benchmarks | Konstantin Shvachko | Konstantin Shvachko |
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-
-### OTHER:
-
-| JIRA | Summary | Priority | Component | Reporter | Contributor |
-|:---- |:---- | :--- |:---- |:---- |:---- |
-| [HDFS-1286](https://issues.apache.org/jira/browse/HDFS-1286) | Dry entropy pool on Hudson boxes causing test timeouts | Major | test | Todd Lipcon | Konstantin Boudnik |
-| [HADOOP-7372](https://issues.apache.org/jira/browse/HADOOP-7372) | Remove ref of 20.3 release from branch-0.20 CHANGES.txt | Major | documentation | Eli Collins | Eli Collins |
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