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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 0.23.5 - 2012-11-29
-
-### INCOMPATIBLE CHANGES:
-
-| JIRA | Summary | Priority | Component | Reporter | Contributor |
-|:---- |:---- | :--- |:---- |:---- |:---- |
-| [HDFS-4080](https://issues.apache.org/jira/browse/HDFS-4080) | Add a 
separate logger for block state change logs to enable turning off those logs |  
Major | namenode | Kihwal Lee | Kihwal Lee |
-
-
-### IMPROVEMENTS:
-
-| JIRA | Summary | Priority | Component | Reporter | Contributor |
-|:---- |:---- | :--- |:---- |:---- |:---- |
-| [HADOOP-8789](https://issues.apache.org/jira/browse/HADOOP-8789) | Tests 
setLevel(Level.OFF) should be Level.ERROR |  Minor | test | Andy Isaacson | 
Andy Isaacson |
-| [HADOOP-8755](https://issues.apache.org/jira/browse/HADOOP-8755) | Print 
thread dump when tests fail due to timeout |  Major | test | Andrey Klochkov | 
Andrey Klochkov |
-| [HADOOP-8851](https://issues.apache.org/jira/browse/HADOOP-8851) | Use 
-XX:+HeapDumpOnOutOfMemoryError JVM option in the forked tests |  Minor | test 
| Ivan A. Veselovsky | Ivan A. Veselovsky |
-| [HDFS-3483](https://issues.apache.org/jira/browse/HDFS-3483) | Better error 
message when hdfs fsck is run against a ViewFS config |  Major | . | Stephen 
Chu | Stephen Fritz |
-| [HADOOP-8889](https://issues.apache.org/jira/browse/HADOOP-8889) | Upgrade 
to Surefire 2.12.3 |  Major | build, test | Todd Lipcon | Todd Lipcon |
-| [HADOOP-8932](https://issues.apache.org/jira/browse/HADOOP-8932) | JNI-based 
user-group mapping modules can be too chatty on lookup failures |  Major | 
security | Kihwal Lee | Kihwal Lee |
-| [HADOOP-8926](https://issues.apache.org/jira/browse/HADOOP-8926) | 
hadoop.util.PureJavaCrc32 cache hit-ratio is low for static data |  Major | 
util | Gopal V | Gopal V |
-| [HADOOP-8930](https://issues.apache.org/jira/browse/HADOOP-8930) | 
Cumulative code coverage calculation |  Major | test | Andrey Klochkov | Andrey 
Klochkov |
-| [MAPREDUCE-4229](https://issues.apache.org/jira/browse/MAPREDUCE-4229) | 
Counter names' memory usage can be decreased by interning |  Major | jobtracker 
| Todd Lipcon | Miomir Boljanovic |
-| [MAPREDUCE-4752](https://issues.apache.org/jira/browse/MAPREDUCE-4752) | 
Reduce MR AM memory usage through String Interning |  Major | mrv2 | Robert 
Joseph Evans | Robert Joseph Evans |
-| [YARN-165](https://issues.apache.org/jira/browse/YARN-165) | RM should point 
tracking URL to RM web page for app when AM fails |  Blocker | resourcemanager 
| Jason Lowe | Jason Lowe |
-| [MAPREDUCE-4763](https://issues.apache.org/jira/browse/MAPREDUCE-4763) | 
repair test 
org.apache.hadoop.mapreduce.security.TestUmbilicalProtocolWithJobToken |  Minor 
| . | Ivan A. Veselovsky |  |
-| [MAPREDUCE-4666](https://issues.apache.org/jira/browse/MAPREDUCE-4666) | JVM 
metrics for history server |  Minor | jobhistoryserver | Jason Lowe | Jason 
Lowe |
-| [MAPREDUCE-4517](https://issues.apache.org/jira/browse/MAPREDUCE-4517) | Too 
many INFO messages written out during AM to RM heartbeat |  Minor | 
applicationmaster | James Kinley | Jason Lowe |
-| [YARN-216](https://issues.apache.org/jira/browse/YARN-216) | Remove jquery 
theming support |  Major | . | Todd Lipcon | Robert Joseph Evans |
-| [MAPREDUCE-4802](https://issues.apache.org/jira/browse/MAPREDUCE-4802) | 
Takes a long time to load the task list on the AM for large jobs |  Major | 
mr-am, mrv2, webapps | Ravi Prakash | Ravi Prakash |
-
-
-### BUG FIXES:
-
-| JIRA | Summary | Priority | Component | Reporter | Contributor |
-|:---- |:---- | :--- |:---- |:---- |:---- |
-| [HADOOP-8775](https://issues.apache.org/jira/browse/HADOOP-8775) | MR2 
distcp permits non-positive value to -bandwidth option which causes job never 
to complete |  Major | . | Sandy Ryza | Sandy Ryza |
-| [HDFS-3919](https://issues.apache.org/jira/browse/HDFS-3919) | 
MiniDFSCluster:waitClusterUp can hang forever |  Minor | test | Andy Isaacson | 
Andy Isaacson |
-| [HADOOP-8819](https://issues.apache.org/jira/browse/HADOOP-8819) | Should 
use && instead of  & in a few places in 
FTPFileSystem,FTPInputStream,S3InputStream,ViewFileSystem,ViewFs |  Major | fs 
| Brandon Li | Brandon Li |
-| [YARN-28](https://issues.apache.org/jira/browse/YARN-28) | 
TestCompositeService fails on jdk7 |  Major | . | Thomas Graves | Thomas Graves 
|
-| [MAPREDUCE-4674](https://issues.apache.org/jira/browse/MAPREDUCE-4674) | 
Hadoop examples secondarysort has a typo "secondarysrot" in the usage |  Minor 
| . | Robert Justice | Robert Justice |
-| [HADOOP-8791](https://issues.apache.org/jira/browse/HADOOP-8791) | rm "Only 
deletes non empty directory and files." |  Major | documentation | Bertrand 
Dechoux | Jing Zhao |
-| [HADOOP-8386](https://issues.apache.org/jira/browse/HADOOP-8386) | hadoop 
script doesn't work if 'cd' prints to stdout (default behavior in Ubuntu) |  
Major | scripts | Christopher Berner | Christopher Berner |
-| [YARN-116](https://issues.apache.org/jira/browse/YARN-116) | RM is missing 
ability to add include/exclude files without a restart |  Major | 
resourcemanager | xieguiming | xieguiming |
-| [YARN-131](https://issues.apache.org/jira/browse/YARN-131) | Incorrect ACL 
properties in capacity scheduler documentation |  Major | capacityscheduler | 
Ahmed Radwan | Ahmed Radwan |
-| [HDFS-3905](https://issues.apache.org/jira/browse/HDFS-3905) | Secure 
cluster cannot use hftp to an insecure cluster |  Critical | hdfs-client, 
security | Daryn Sharp | Daryn Sharp |
-| [YARN-102](https://issues.apache.org/jira/browse/YARN-102) | Move the apache 
licence header to the top of the file in MemStore.java |  Trivial | 
resourcemanager | Devaraj K | Devaraj K |
-| [HDFS-3996](https://issues.apache.org/jira/browse/HDFS-3996) | Add debug log 
removed in HDFS-3873 back |  Minor | . | Eli Collins | Eli Collins |
-| [HDFS-3829](https://issues.apache.org/jira/browse/HDFS-3829) | 
TestHftpURLTimeouts fails intermittently with JDK7 |  Major | test | Trevor 
Robinson | Trevor Robinson |
-| [MAPREDUCE-4554](https://issues.apache.org/jira/browse/MAPREDUCE-4554) | Job 
Credentials are not transmitted if security is turned off |  Major | job 
submission, security | Benoy Antony | Benoy Antony |
-| [MAPREDUCE-4705](https://issues.apache.org/jira/browse/MAPREDUCE-4705) | 
Historyserver links expire before the history data does |  Critical | 
jobhistoryserver, mrv2 | Jason Lowe | Jason Lowe |
-| [YARN-30](https://issues.apache.org/jira/browse/YARN-30) | 
TestNMWebServicesApps, TestRMWebServicesApps and TestRMWebServicesNodes fail on 
jdk7 |  Major | . | Thomas Graves | Thomas Graves |
-| [HDFS-3824](https://issues.apache.org/jira/browse/HDFS-3824) | 
TestHftpDelegationToken fails intermittently with JDK7 |  Major | test | Trevor 
Robinson | Trevor Robinson |
-| [HDFS-3224](https://issues.apache.org/jira/browse/HDFS-3224) | Bug in check 
for DN re-registration with different storage ID |  Minor | . | Eli Collins | 
Jason Lowe |
-| [HADOOP-8906](https://issues.apache.org/jira/browse/HADOOP-8906) | paths 
with multiple globs are unreliable |  Critical | fs | Daryn Sharp | Daryn Sharp 
|
-| [HDFS-4016](https://issues.apache.org/jira/browse/HDFS-4016) | back-port 
HDFS-3582 to branch-0.23 |  Minor | . | Ivan A. Veselovsky | Ivan A. Veselovsky 
|
-| [MAPREDUCE-4521](https://issues.apache.org/jira/browse/MAPREDUCE-4521) | 
mapreduce.user.classpath.first incompatibility with 0.20/1.x |  Major | mrv2 | 
Jason Lowe | Ravi Prakash |
-| [YARN-161](https://issues.apache.org/jira/browse/YARN-161) | Yarn Common has 
multiple compiler warnings for unchecked operations |  Major | api | Chris 
Nauroth | Chris Nauroth |
-| [YARN-43](https://issues.apache.org/jira/browse/YARN-43) | 
TestResourceTrackerService fail intermittently on jdk7 |  Major | . | Thomas 
Graves | Thomas Graves |
-| [MAPREDUCE-4721](https://issues.apache.org/jira/browse/MAPREDUCE-4721) | 
Task startup time in JHS is same as job startup time. |  Major | 
jobhistoryserver | Ravi Prakash | Ravi Prakash |
-| [YARN-32](https://issues.apache.org/jira/browse/YARN-32) | 
TestApplicationTokens fails intermintently on jdk7 |  Major | . | Thomas Graves 
| Vinod Kumar Vavilapalli |
-| [YARN-163](https://issues.apache.org/jira/browse/YARN-163) | Retrieving 
container log via NM webapp can hang with multibyte characters in log |  Major 
| nodemanager | Jason Lowe | Jason Lowe |
-| [MAPREDUCE-4479](https://issues.apache.org/jira/browse/MAPREDUCE-4479) | Fix 
parameter order in assertEquals() in TestCombineInputFileFormat.java |  Major | 
test | Mariappan Asokan | Mariappan Asokan |
-| [MAPREDUCE-4733](https://issues.apache.org/jira/browse/MAPREDUCE-4733) | 
Reducer can fail to make progress during shuffle if too many reducers complete 
consecutively |  Major | applicationmaster, mrv2 | Jason Lowe | Jason Lowe |
-| [MAPREDUCE-4740](https://issues.apache.org/jira/browse/MAPREDUCE-4740) | 
only .jars can be added to the Distributed Cache classpath |  Blocker | mrv2 | 
Robert Joseph Evans | Robert Joseph Evans |
-| [YARN-174](https://issues.apache.org/jira/browse/YARN-174) | 
TestNodeStatusUpdater is failing in trunk |  Major | nodemanager | Robert 
Joseph Evans | Vinod Kumar Vavilapalli |
-| [HDFS-4090](https://issues.apache.org/jira/browse/HDFS-4090) | 
getFileChecksum() result incompatible when called against zero-byte files. |  
Critical | hdfs-client | Kihwal Lee | Kihwal Lee |
-| [HADOOP-8962](https://issues.apache.org/jira/browse/HADOOP-8962) | 
RawLocalFileSystem.listStatus fails when a child filename contains a colon |  
Critical | fs | Jason Lowe | Jason Lowe |
-| [YARN-177](https://issues.apache.org/jira/browse/YARN-177) | 
CapacityScheduler - adding a queue while the RM is running has wacky results |  
Critical | capacityscheduler | Thomas Graves | Arun C Murthy |
-| [YARN-178](https://issues.apache.org/jira/browse/YARN-178) | Fix custom 
ProcessTree instance creation |  Critical | . | Radim Kolar | Radim Kolar |
-| [YARN-180](https://issues.apache.org/jira/browse/YARN-180) | Capacity 
scheduler - containers that get reserved create container token to early |  
Critical | capacityscheduler | Thomas Graves | Arun C Murthy |
-| [YARN-139](https://issues.apache.org/jira/browse/YARN-139) | Interrupted 
Exception within AsyncDispatcher leads to user confusion |  Major | api | 
Nathan Roberts | Vinod Kumar Vavilapalli |
-| [MAPREDUCE-4741](https://issues.apache.org/jira/browse/MAPREDUCE-4741) | 
WARN and ERROR messages logged during normal AM shutdown |  Minor | 
applicationmaster, mrv2 | Jason Lowe | Vinod Kumar Vavilapalli |
-| [MAPREDUCE-4730](https://issues.apache.org/jira/browse/MAPREDUCE-4730) | AM 
crashes due to OOM while serving up map task completion events |  Blocker | 
applicationmaster, mrv2 | Jason Lowe | Jason Lowe |
-| [MAPREDUCE-4748](https://issues.apache.org/jira/browse/MAPREDUCE-4748) | 
Invalid event: T\_ATTEMPT\_SUCCEEDED at SUCCEEDED |  Blocker | mrv2 | Robert 
Joseph Evans | Jason Lowe |
-| [MAPREDUCE-1806](https://issues.apache.org/jira/browse/MAPREDUCE-1806) | 
CombineFileInputFormat does not work with paths not on default FS |  Major | 
harchive | Paul Yang | Gera Shegalov |
-| [HADOOP-8986](https://issues.apache.org/jira/browse/HADOOP-8986) | 
Server$Call object is never released after it is sent |  Critical | ipc | 
Robert Joseph Evans | Robert Joseph Evans |
-| [YARN-159](https://issues.apache.org/jira/browse/YARN-159) | RM web ui 
applications page should be sorted to display last app first |  Major | 
resourcemanager | Thomas Graves | Thomas Graves |
-| [YARN-166](https://issues.apache.org/jira/browse/YARN-166) | capacity 
scheduler doesn't allow capacity \< 1.0 |  Major | capacityscheduler | Thomas 
Graves | Thomas Graves |
-| [MAPREDUCE-4724](https://issues.apache.org/jira/browse/MAPREDUCE-4724) | job 
history web ui applications page should be sorted to display last app first |  
Major | jobhistoryserver | Thomas Graves | Thomas Graves |
-| [YARN-189](https://issues.apache.org/jira/browse/YARN-189) | deadlock in RM 
- AMResponse object |  Blocker | resourcemanager | Thomas Graves | Thomas 
Graves |
-| [MAPREDUCE-4746](https://issues.apache.org/jira/browse/MAPREDUCE-4746) | The 
MR Application Master does not have a config to set environment variables |  
Major | applicationmaster | Robert Parker | Robert Parker |
-| [MAPREDUCE-4729](https://issues.apache.org/jira/browse/MAPREDUCE-4729) | job 
history UI not showing all job attempts |  Major | jobhistoryserver | Thomas 
Graves | Vinod Kumar Vavilapalli |
-| [MAPREDUCE-4771](https://issues.apache.org/jira/browse/MAPREDUCE-4771) | 
KeyFieldBasedPartitioner not partitioning properly when configured |  Major | 
mrv2 | Jason Lowe | Jason Lowe |
-| [HDFS-4075](https://issues.apache.org/jira/browse/HDFS-4075) | Reduce 
recommissioning overhead |  Critical | namenode | Kihwal Lee | Kihwal Lee |
-| [YARN-201](https://issues.apache.org/jira/browse/YARN-201) | 
CapacityScheduler can take a very long time to schedule containers if requests 
are off cluster |  Critical | capacityscheduler | Jason Lowe | Jason Lowe |
-| [MAPREDUCE-4772](https://issues.apache.org/jira/browse/MAPREDUCE-4772) | 
Fetch failures can take way too long for a map to be restarted |  Critical | 
mrv2 | Robert Joseph Evans | Robert Joseph Evans |
-| [HDFS-3990](https://issues.apache.org/jira/browse/HDFS-3990) | NN's health 
report has severe performance problems |  Critical | namenode | Daryn Sharp | 
Daryn Sharp |
-| [MAPREDUCE-4782](https://issues.apache.org/jira/browse/MAPREDUCE-4782) | 
NLineInputFormat skips first line of last InputSplit |  Blocker | client | Mark 
Fuhs | Mark Fuhs |
-| [HDFS-4162](https://issues.apache.org/jira/browse/HDFS-4162) | Some 
malformed and unquoted HTML strings are returned from datanode web ui |  Minor 
| datanode | Derek Dagit | Derek Dagit |
-| [MAPREDUCE-4774](https://issues.apache.org/jira/browse/MAPREDUCE-4774) | 
JobImpl does not handle asynchronous task events in FAILED state |  Major | 
applicationmaster, mrv2 | Ivan A. Veselovsky | Jason Lowe |
-| [YARN-206](https://issues.apache.org/jira/browse/YARN-206) | 
TestApplicationCleanup.testContainerCleanup occasionally fails |  Major | 
resourcemanager | Jason Lowe | Jason Lowe |
-| [MAPREDUCE-4751](https://issues.apache.org/jira/browse/MAPREDUCE-4751) | AM 
stuck in KILL\_WAIT for days |  Major | . | Ravi Prakash | Vinod Kumar 
Vavilapalli |
-| [MAPREDUCE-4787](https://issues.apache.org/jira/browse/MAPREDUCE-4787) | 
TestJobMonitorAndPrint is broken |  Major | test | Ravi Prakash | Robert Parker 
|
-| [HDFS-4172](https://issues.apache.org/jira/browse/HDFS-4172) | namenode does 
not URI-encode parameters when building URI for datanode request |  Minor | 
namenode | Derek Dagit | Derek Dagit |
-| [MAPREDUCE-4425](https://issues.apache.org/jira/browse/MAPREDUCE-4425) | 
Speculation + Fetch failures can lead to a hung job |  Critical | mrv2 | 
Siddharth Seth | Jason Lowe |
-| [MAPREDUCE-4786](https://issues.apache.org/jira/browse/MAPREDUCE-4786) | Job 
End Notification retry interval is 5 milliseconds by default |  Major | mrv2 | 
Ravi Prakash | Ravi Prakash |
-| [HADOOP-9022](https://issues.apache.org/jira/browse/HADOOP-9022) | Hadoop 
distcp tool fails to copy file if -m 0 specified |  Major | . | Haiyang Jiang | 
Jonathan Eagles |
-| [HADOOP-9025](https://issues.apache.org/jira/browse/HADOOP-9025) | 
org.apache.hadoop.tools.TestCopyListing failing |  Major | . | Robert Joseph 
Evans | Jonathan Eagles |
-| [HDFS-4181](https://issues.apache.org/jira/browse/HDFS-4181) | LeaseManager 
tries to double remove and prints extra messages |  Critical | namenode | 
Kihwal Lee | Kihwal Lee |
-| [YARN-212](https://issues.apache.org/jira/browse/YARN-212) | NM state 
machine ignores an APPLICATION\_CONTAINER\_FINISHED event when it shouldn't |  
Blocker | nodemanager | Nathan Roberts | Nathan Roberts |
-| [YARN-144](https://issues.apache.org/jira/browse/YARN-144) | 
MiniMRYarnCluster launches RM and JHS on default ports |  Major | . | Robert 
Parker | Robert Parker |
-| [HDFS-4182](https://issues.apache.org/jira/browse/HDFS-4182) | 
SecondaryNameNode leaks NameCache entries |  Critical | namenode | Todd Lipcon 
| Robert Joseph Evans |
-| [MAPREDUCE-4797](https://issues.apache.org/jira/browse/MAPREDUCE-4797) | 
LocalContainerAllocator can loop forever trying to contact the RM |  Major | 
applicationmaster | Jason Lowe | Jason Lowe |
-| [MAPREDUCE-4720](https://issues.apache.org/jira/browse/MAPREDUCE-4720) | 
Browser thinks History Server main page JS is taking too long |  Major | . | 
Robert Joseph Evans | Ravi Prakash |
-| [HDFS-4186](https://issues.apache.org/jira/browse/HDFS-4186) | logSync() is 
called with the write lock held while releasing lease |  Critical | namenode | 
Kihwal Lee | Kihwal Lee |
-| [MAPREDUCE-4801](https://issues.apache.org/jira/browse/MAPREDUCE-4801) | 
ShuffleHandler can generate large logs due to prematurely closed channels |  
Critical | . | Jason Lowe | Jason Lowe |
-| [YARN-214](https://issues.apache.org/jira/browse/YARN-214) | RMContainerImpl 
does not handle event EXPIRE at state RUNNING |  Major | resourcemanager | 
Jason Lowe | Jonathan Eagles |
-| [YARN-151](https://issues.apache.org/jira/browse/YARN-151) | Browser thinks 
RM main page JS is taking too long |  Major | . | Robert Joseph Evans | Ravi 
Prakash |
-| [MAPREDUCE-4549](https://issues.apache.org/jira/browse/MAPREDUCE-4549) | 
Distributed cache conflicts breaks backwards compatability |  Blocker | mrv2 | 
Robert Joseph Evans | Robert Joseph Evans |
-
-
-### SUB-TASKS:
-
-| JIRA | Summary | Priority | Component | Reporter | Contributor |
-|:---- |:---- | :--- |:---- |:---- |:---- |
-| [MAPREDUCE-4107](https://issues.apache.org/jira/browse/MAPREDUCE-4107) | Fix 
tests in org.apache.hadoop.ipc.TestSocketFactory |  Major | mrv2 | Devaraj K | 
Devaraj K |
-| [YARN-202](https://issues.apache.org/jira/browse/YARN-202) | Log Aggregation 
generates a storm of fsync() for namenode |  Critical | . | Kihwal Lee | Kihwal 
Lee |
-| [YARN-186](https://issues.apache.org/jira/browse/YARN-186) | Coverage fixing 
LinuxContainerExecutor |  Major | resourcemanager, scheduler | Aleksey Gorshkov 
| Aleksey Gorshkov |
-| [YARN-188](https://issues.apache.org/jira/browse/YARN-188) | Coverage fixing 
for CapacityScheduler |  Major | capacityscheduler | Aleksey Gorshkov | Aleksey 
Gorshkov |
-| [YARN-219](https://issues.apache.org/jira/browse/YARN-219) | NM should 
aggregate logs when application finishes. |  Critical | nodemanager | Robert 
Joseph Evans | Robert Joseph Evans |
-
-
-### OTHER:
-
-| JIRA | Summary | Priority | Component | Reporter | Contributor |
-|:---- |:---- | :--- |:---- |:---- |:---- |
-| [MAPREDUCE-4596](https://issues.apache.org/jira/browse/MAPREDUCE-4596) | 
Split StateMachine state from states seen by MRClientProtocol (for Job, Task, 
TaskAttempt) |  Major | applicationmaster, mrv2 | Siddharth Seth | Siddharth 
Seth |
-| [YARN-154](https://issues.apache.org/jira/browse/YARN-154) | Create Yarn 
trunk and commit jobs |  Major | . | Eli Collins | Robert Joseph Evans |
-| [MAPREDUCE-4266](https://issues.apache.org/jira/browse/MAPREDUCE-4266) | 
remove Ant remnants from MR |  Major | build | Alejandro Abdelnur | Alejandro 
Abdelnur |
-| [HADOOP-8860](https://issues.apache.org/jira/browse/HADOOP-8860) | Split 
MapReduce and YARN sections in documentation navigation |  Major | 
documentation | Tom White | Tom White |
-
-

http://git-wip-us.apache.org/repos/asf/hadoop/blob/4b8c2b1c/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.6/CHANGELOG.0.23.6.md
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diff --git 
a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.6/CHANGELOG.0.23.6.md
 
b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.6/CHANGELOG.0.23.6.md
new file mode 100644
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+++ 
b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.6/CHANGELOG.0.23.6.md
@@ -0,0 +1,127 @@
+
+<!---
+# 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 0.23.6 - 2013-02-06
+
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [YARN-80](https://issues.apache.org/jira/browse/YARN-80) | Support delay 
scheduling for node locality in MR2's capacity scheduler |  Major | 
capacityscheduler | Todd Lipcon | Arun C Murthy |
+| [HADOOP-8931](https://issues.apache.org/jira/browse/HADOOP-8931) | Add Java 
version to startup message |  Trivial | . | Eli Collins | Eli Collins |
+| [MAPREDUCE-4811](https://issues.apache.org/jira/browse/MAPREDUCE-4811) | 
JobHistoryServer should show when it was started in WebUI About page |  Minor | 
jobhistoryserver, mrv2 | Ravi Prakash | Ravi Prakash |
+| [MAPREDUCE-4764](https://issues.apache.org/jira/browse/MAPREDUCE-4764) | 
repair test org.apache.hadoop.mapreduce.security.TestBinaryTokenFile |  Major | 
. | Ivan A. Veselovsky |  |
+| [HADOOP-8992](https://issues.apache.org/jira/browse/HADOOP-8992) | Enhance 
unit-test coverage of class HarFileSystem |  Minor | . | Ivan A. Veselovsky | 
Ivan A. Veselovsky |
+| [HADOOP-8561](https://issues.apache.org/jira/browse/HADOOP-8561) | Introduce 
HADOOP\_PROXY\_USER for secure impersonation in child hadoop client processes | 
 Major | security | Luke Lu | Yu Gao |
+| [MAPREDUCE-4845](https://issues.apache.org/jira/browse/MAPREDUCE-4845) | 
ClusterStatus.getMaxMemory() and getUsedMemory() exist in MR1 but not MR2 |  
Major | client | Sandy Ryza | Sandy Ryza |
+| [YARN-285](https://issues.apache.org/jira/browse/YARN-285) | RM should be 
able to provide a tracking link for apps that have already been purged |  Major 
| . | Derek Dagit | Derek Dagit |
+| [MAPREDUCE-4899](https://issues.apache.org/jira/browse/MAPREDUCE-4899) | 
Provide a plugin to the Yarn Web App Proxy to generate tracking links for M/R 
appllications given the ID |  Major | . | Derek Dagit | Derek Dagit |
+| [MAPREDUCE-4810](https://issues.apache.org/jira/browse/MAPREDUCE-4810) | Add 
admin command options for ApplicationMaster |  Minor | applicationmaster | 
Jason Lowe | Haifeng Chen |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-7868](https://issues.apache.org/jira/browse/HADOOP-7868) | Hadoop 
native fails to compile when default linker option is -Wl,--as-needed |  Major 
| native | James Page | Trevor Robinson |
+| [HDFS-2757](https://issues.apache.org/jira/browse/HDFS-2757) | Cannot read a 
local block that's being written to when using the local read short circuit |  
Major | . | Jean-Daniel Cryans | Jean-Daniel Cryans |
+| [HDFS-4186](https://issues.apache.org/jira/browse/HDFS-4186) | logSync() is 
called with the write lock held while releasing lease |  Critical | namenode | 
Kihwal Lee | Kihwal Lee |
+| [HADOOP-9072](https://issues.apache.org/jira/browse/HADOOP-9072) | 
Hadoop-Common-0.23-Build Fails to build in Jenkins |  Major | . | Robert Parker 
| Robert Parker |
+| [MAPREDUCE-4825](https://issues.apache.org/jira/browse/MAPREDUCE-4825) | 
JobImpl.finished doesn't expect ERROR as a final job state |  Major | mr-am | 
Jason Lowe | Jason Lowe |
+| [MAPREDUCE-4817](https://issues.apache.org/jira/browse/MAPREDUCE-4817) | 
Hardcoded task ping timeout kills tasks localizing large amounts of data |  
Critical | applicationmaster, mr-am | Jason Lowe | Thomas Graves |
+| [HDFS-4242](https://issues.apache.org/jira/browse/HDFS-4242) | Map.Entry is 
incorrectly used in LeaseManager |  Major | namenode | Tsz Wo Nicholas Sze | 
Tsz Wo Nicholas Sze |
+| [HADOOP-9108](https://issues.apache.org/jira/browse/HADOOP-9108) | Add a 
method to clear terminateCalled to ExitUtil for test cases |  Major | util | 
Kihwal Lee | Kihwal Lee |
+| [HDFS-4233](https://issues.apache.org/jira/browse/HDFS-4233) | NN keeps 
serving even after no journals started while rolling edit |  Blocker | namenode 
| Kihwal Lee | Kihwal Lee |
+| [YARN-251](https://issues.apache.org/jira/browse/YARN-251) | Proxy URI 
generation fails for blank tracking URIs |  Major | resourcemanager | Tom White 
| Tom White |
+| [MAPREDUCE-4836](https://issues.apache.org/jira/browse/MAPREDUCE-4836) | 
Elapsed time for running tasks on AM web UI tasks page is 0 |  Major | . | Ravi 
Prakash | Ravi Prakash |
+| [HDFS-4254](https://issues.apache.org/jira/browse/HDFS-4254) | 
testAllEditsDirsFailOnFlush makes subsequent test cases fail (0.23.6 only) |  
Major | test | Kihwal Lee | Kihwal Lee |
+| [YARN-72](https://issues.apache.org/jira/browse/YARN-72) | NM should handle 
cleaning up containers when it shuts down |  Major | nodemanager | Hitesh Shah 
| Sandy Ryza |
+| [YARN-258](https://issues.apache.org/jira/browse/YARN-258) | RM web page UI 
shows Invalid Date for start and finish times |  Major | resourcemanager | Ravi 
Prakash | Ravi Prakash |
+| [YARN-266](https://issues.apache.org/jira/browse/YARN-266) | RM and JHS Web 
UIs are blank because AppsBlock is not escaping string properly |  Critical | 
resourcemanager | Ravi Prakash | Ravi Prakash |
+| [MAPREDUCE-4861](https://issues.apache.org/jira/browse/MAPREDUCE-4861) | 
Cleanup: Remove unused mapreduce.security.token.DelegationTokenRenewal |  Major 
| . | Karthik Kambatla | Karthik Kambatla |
+| [MAPREDUCE-4856](https://issues.apache.org/jira/browse/MAPREDUCE-4856) | 
TestJobOutputCommitter uses same directory as TestJobCleanup |  Major | test | 
Sandy Ryza | Sandy Ryza |
+| [HADOOP-9135](https://issues.apache.org/jira/browse/HADOOP-9135) | 
JniBasedUnixGroupsMappingWithFallback should log at debug rather than info 
during fallback |  Trivial | security | Colin P. McCabe | Colin P. McCabe |
+| [HDFS-4315](https://issues.apache.org/jira/browse/HDFS-4315) | DNs with 
multiple BPs can have BPOfferServices fail to start due to unsynchronized map 
access |  Major | datanode | Aaron T. Myers | Aaron T. Myers |
+| [HDFS-4232](https://issues.apache.org/jira/browse/HDFS-4232) | NN fails to 
write a fsimage with stale leases |  Blocker | namenode | Daryn Sharp | Daryn 
Sharp |
+| [HADOOP-9152](https://issues.apache.org/jira/browse/HADOOP-9152) | HDFS can 
report negative DFS Used on clusters with very small amounts of data |  Minor | 
fs | Brock Noland | Brock Noland |
+| [YARN-223](https://issues.apache.org/jira/browse/YARN-223) | Change 
processTree interface to work better with native code |  Critical | . | Radim 
Kolar | Radim Kolar |
+| [MAPREDUCE-4895](https://issues.apache.org/jira/browse/MAPREDUCE-4895) | Fix 
compilation failure of 
org.apache.hadoop.mapred.gridmix.TestResourceUsageEmulators |  Major | . | 
Dennis Y | Dennis Y |
+| [HADOOP-9105](https://issues.apache.org/jira/browse/HADOOP-9105) | FsShell 
-moveFromLocal erroneously fails |  Major | fs | Daryn Sharp | Daryn Sharp |
+| [MAPREDUCE-4842](https://issues.apache.org/jira/browse/MAPREDUCE-4842) | 
Shuffle race can hang reducer |  Blocker | mrv2 | Jason Lowe | Mariappan Asokan 
|
+| [MAPREDUCE-4833](https://issues.apache.org/jira/browse/MAPREDUCE-4833) | 
Task can get stuck in FAIL\_CONTAINER\_CLEANUP |  Critical | applicationmaster, 
mrv2 | Robert Joseph Evans | Robert Parker |
+| [MAPREDUCE-4890](https://issues.apache.org/jira/browse/MAPREDUCE-4890) | 
Invalid TaskImpl state transitions when task fails while speculating |  
Critical | mr-am | Jason Lowe | Jason Lowe |
+| [HADOOP-9169](https://issues.apache.org/jira/browse/HADOOP-9169) | Bring 
branch-0.23 ExitUtil up to same level as branch-2 |  Major | . | Robert Joseph 
Evans | Robert Joseph Evans |
+| [MAPREDUCE-4902](https://issues.apache.org/jira/browse/MAPREDUCE-4902) | Fix 
typo "receievd" should be "received" in log output |  Trivial | . | Albert Chu 
| Albert Chu |
+| [YARN-225](https://issues.apache.org/jira/browse/YARN-225) | Proxy Link in 
RM UI thows NPE in Secure mode |  Critical | resourcemanager | Devaraj K | 
Devaraj K |
+| [MAPREDUCE-4813](https://issues.apache.org/jira/browse/MAPREDUCE-4813) | AM 
timing out during job commit |  Critical | applicationmaster | Jason Lowe | 
Jason Lowe |
+| [YARN-293](https://issues.apache.org/jira/browse/YARN-293) | Node Manager 
leaks LocalizerRunner object for every Container |  Critical | nodemanager | 
Devaraj K | Robert Joseph Evans |
+| [MAPREDUCE-4279](https://issues.apache.org/jira/browse/MAPREDUCE-4279) | 
getClusterStatus() fails with null pointer exception when running jobs in local 
mode |  Major | jobtracker | Rahul Jain | Devaraj K |
+| [HDFS-4270](https://issues.apache.org/jira/browse/HDFS-4270) | Replications 
of the highest priority should be allowed to choose a source datanode that has 
reached its max replication limit |  Minor | namenode | Derek Dagit | Derek 
Dagit |
+| [MAPREDUCE-4832](https://issues.apache.org/jira/browse/MAPREDUCE-4832) | MR 
AM can get in a split brain situation |  Critical | applicationmaster | Robert 
Joseph Evans | Jason Lowe |
+| [MAPREDUCE-4894](https://issues.apache.org/jira/browse/MAPREDUCE-4894) | 
Renewal / cancellation of JobHistory tokens |  Blocker | jobhistoryserver, mrv2 
| Siddharth Seth | Siddharth Seth |
+| [MAPREDUCE-4819](https://issues.apache.org/jira/browse/MAPREDUCE-4819) | AM 
can rerun job after reporting final job status to the client |  Blocker | mr-am 
| Jason Lowe | Bikas Saha |
+| [MAPREDUCE-4913](https://issues.apache.org/jira/browse/MAPREDUCE-4913) | 
TestMRAppMaster#testMRAppMasterMissingStaging occasionally exits |  Major | 
mr-am | Jason Lowe | Jason Lowe |
+| [YARN-170](https://issues.apache.org/jira/browse/YARN-170) | NodeManager 
stop() gets called twice on shutdown |  Major | nodemanager | Sandy Ryza | 
Sandy Ryza |
+| [HADOOP-9181](https://issues.apache.org/jira/browse/HADOOP-9181) | Set 
daemon flag for HttpServer's QueuedThreadPool |  Major | . | Liang Xie | Liang 
Xie |
+| [YARN-320](https://issues.apache.org/jira/browse/YARN-320) | RM should 
always be able to renew its own tokens |  Blocker | resourcemanager | Daryn 
Sharp | Daryn Sharp |
+| [YARN-325](https://issues.apache.org/jira/browse/YARN-325) | RM 
CapacityScheduler can deadlock when getQueueInfo() is called and a container is 
completing |  Blocker | capacityscheduler | Jason Lowe | Arun C Murthy |
+| [MAPREDUCE-4848](https://issues.apache.org/jira/browse/MAPREDUCE-4848) | 
TaskAttemptContext cast error during AM recovery |  Major | mr-am | Jason Lowe 
| Haifeng Chen |
+| [HADOOP-9097](https://issues.apache.org/jira/browse/HADOOP-9097) | Maven RAT 
plugin is not checking all source files |  Critical | build | Tom White | 
Thomas Graves |
+| [HDFS-4385](https://issues.apache.org/jira/browse/HDFS-4385) | Maven RAT 
plugin is not checking all source files |  Critical | build | Thomas Graves | 
Thomas Graves |
+| [MAPREDUCE-4934](https://issues.apache.org/jira/browse/MAPREDUCE-4934) | 
Maven RAT plugin is not checking all source files |  Critical | build | Thomas 
Graves | Thomas Graves |
+| [YARN-334](https://issues.apache.org/jira/browse/YARN-334) | Maven RAT 
plugin is not checking all source files |  Critical | . | Thomas Graves | 
Thomas Graves |
+| [MAPREDUCE-4678](https://issues.apache.org/jira/browse/MAPREDUCE-4678) | 
Running the Pentomino example with defaults throws 
java.lang.NegativeArraySizeException |  Minor | examples | Chris McConnell | 
Chris McConnell |
+| [MAPREDUCE-4925](https://issues.apache.org/jira/browse/MAPREDUCE-4925) | The 
pentomino option parser may be buggy |  Major | examples | Karthik Kambatla | 
Karthik Kambatla |
+| [MAPREDUCE-4921](https://issues.apache.org/jira/browse/MAPREDUCE-4921) | 
JobClient should acquire HS token with RM principal |  Blocker | client | Daryn 
Sharp | Daryn Sharp |
+| [HDFS-4426](https://issues.apache.org/jira/browse/HDFS-4426) | Secondary 
namenode shuts down immediately after startup |  Blocker | namenode | Jason 
Lowe | Arpit Agarwal |
+| [YARN-354](https://issues.apache.org/jira/browse/YARN-354) | 
WebAppProxyServer exits immediately after startup |  Blocker | . | Liang Xie | 
Liang Xie |
+| [HADOOP-9242](https://issues.apache.org/jira/browse/HADOOP-9242) | Duplicate 
surefire plugin config in hadoop-common |  Major | test | Andrey Klochkov | 
Andrey Klochkov |
+| [HADOOP-9255](https://issues.apache.org/jira/browse/HADOOP-9255) | 
relnotes.py missing last jira |  Critical | scripts | Thomas Graves | Thomas 
Graves |
+
+
+### TESTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-9038](https://issues.apache.org/jira/browse/HADOOP-9038) | provide 
unit-test coverage of class 
org.apache.hadoop.fs.LocalDirAllocator.AllocatorPerContext.PathIterator |  
Minor | . | Ivan A. Veselovsky | Ivan A. Veselovsky |
+| [HADOOP-9217](https://issues.apache.org/jira/browse/HADOOP-9217) | Print 
thread dumps when hadoop-common tests fail |  Major | test | Andrey Klochkov | 
Andrey Klochkov |
+
+
+### SUB-TASKS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-9020](https://issues.apache.org/jira/browse/HADOOP-9020) | Add a 
SASL PLAIN server |  Major | ipc, security | Daryn Sharp | Daryn Sharp |
+| [YARN-204](https://issues.apache.org/jira/browse/YARN-204) | test coverage 
for org.apache.hadoop.tools |  Major | applications | Aleksey Gorshkov | 
Aleksey Gorshkov |
+| [HDFS-4247](https://issues.apache.org/jira/browse/HDFS-4247) | saveNamespace 
should be tolerant of dangling lease |  Blocker | namenode | Daryn Sharp | 
Daryn Sharp |
+| [HDFS-4248](https://issues.apache.org/jira/browse/HDFS-4248) | Renames may 
remove file leases |  Blocker | namenode | Daryn Sharp | Daryn Sharp |
+| [YARN-280](https://issues.apache.org/jira/browse/YARN-280) | RM does not 
reject app submission with invalid tokens |  Major | resourcemanager | Daryn 
Sharp | Daryn Sharp |
+| [YARN-50](https://issues.apache.org/jira/browse/YARN-50) | Implement renewal 
/ cancellation of Delegation Tokens |  Blocker | . | Siddharth Seth | Siddharth 
Seth |
+
+
+### OTHER:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-8427](https://issues.apache.org/jira/browse/HADOOP-8427) | Convert 
Forrest docs to APT, incremental |  Major | documentation | Eli Collins | Andy 
Isaacson |
+
+

http://git-wip-us.apache.org/repos/asf/hadoop/blob/4b8c2b1c/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.6/CHANGES.0.23.6.md
----------------------------------------------------------------------
diff --git 
a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.6/CHANGES.0.23.6.md
 
b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.6/CHANGES.0.23.6.md
deleted file mode 100644
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--- 
a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.6/CHANGES.0.23.6.md
+++ /dev/null
@@ -1,127 +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 0.23.6 - 2013-02-06
-
-
-
-### IMPROVEMENTS:
-
-| JIRA | Summary | Priority | Component | Reporter | Contributor |
-|:---- |:---- | :--- |:---- |:---- |:---- |
-| [YARN-80](https://issues.apache.org/jira/browse/YARN-80) | Support delay 
scheduling for node locality in MR2's capacity scheduler |  Major | 
capacityscheduler | Todd Lipcon | Arun C Murthy |
-| [HADOOP-8931](https://issues.apache.org/jira/browse/HADOOP-8931) | Add Java 
version to startup message |  Trivial | . | Eli Collins | Eli Collins |
-| [MAPREDUCE-4811](https://issues.apache.org/jira/browse/MAPREDUCE-4811) | 
JobHistoryServer should show when it was started in WebUI About page |  Minor | 
jobhistoryserver, mrv2 | Ravi Prakash | Ravi Prakash |
-| [MAPREDUCE-4764](https://issues.apache.org/jira/browse/MAPREDUCE-4764) | 
repair test org.apache.hadoop.mapreduce.security.TestBinaryTokenFile |  Major | 
. | Ivan A. Veselovsky |  |
-| [HADOOP-8992](https://issues.apache.org/jira/browse/HADOOP-8992) | Enhance 
unit-test coverage of class HarFileSystem |  Minor | . | Ivan A. Veselovsky | 
Ivan A. Veselovsky |
-| [HADOOP-8561](https://issues.apache.org/jira/browse/HADOOP-8561) | Introduce 
HADOOP\_PROXY\_USER for secure impersonation in child hadoop client processes | 
 Major | security | Luke Lu | Yu Gao |
-| [MAPREDUCE-4845](https://issues.apache.org/jira/browse/MAPREDUCE-4845) | 
ClusterStatus.getMaxMemory() and getUsedMemory() exist in MR1 but not MR2 |  
Major | client | Sandy Ryza | Sandy Ryza |
-| [YARN-285](https://issues.apache.org/jira/browse/YARN-285) | RM should be 
able to provide a tracking link for apps that have already been purged |  Major 
| . | Derek Dagit | Derek Dagit |
-| [MAPREDUCE-4899](https://issues.apache.org/jira/browse/MAPREDUCE-4899) | 
Provide a plugin to the Yarn Web App Proxy to generate tracking links for M/R 
appllications given the ID |  Major | . | Derek Dagit | Derek Dagit |
-| [MAPREDUCE-4810](https://issues.apache.org/jira/browse/MAPREDUCE-4810) | Add 
admin command options for ApplicationMaster |  Minor | applicationmaster | 
Jason Lowe | Jerry Chen |
-
-
-### BUG FIXES:
-
-| JIRA | Summary | Priority | Component | Reporter | Contributor |
-|:---- |:---- | :--- |:---- |:---- |:---- |
-| [HADOOP-7868](https://issues.apache.org/jira/browse/HADOOP-7868) | Hadoop 
native fails to compile when default linker option is -Wl,--as-needed |  Major 
| native | James Page | Trevor Robinson |
-| [HDFS-2757](https://issues.apache.org/jira/browse/HDFS-2757) | Cannot read a 
local block that's being written to when using the local read short circuit |  
Major | . | Jean-Daniel Cryans | Jean-Daniel Cryans |
-| [HDFS-4186](https://issues.apache.org/jira/browse/HDFS-4186) | logSync() is 
called with the write lock held while releasing lease |  Critical | namenode | 
Kihwal Lee | Kihwal Lee |
-| [HADOOP-9072](https://issues.apache.org/jira/browse/HADOOP-9072) | 
Hadoop-Common-0.23-Build Fails to build in Jenkins |  Major | . | Robert Parker 
| Robert Parker |
-| [MAPREDUCE-4825](https://issues.apache.org/jira/browse/MAPREDUCE-4825) | 
JobImpl.finished doesn't expect ERROR as a final job state |  Major | mr-am | 
Jason Lowe | Jason Lowe |
-| [MAPREDUCE-4817](https://issues.apache.org/jira/browse/MAPREDUCE-4817) | 
Hardcoded task ping timeout kills tasks localizing large amounts of data |  
Critical | applicationmaster, mr-am | Jason Lowe | Thomas Graves |
-| [HDFS-4242](https://issues.apache.org/jira/browse/HDFS-4242) | Map.Entry is 
incorrectly used in LeaseManager |  Major | namenode | Tsz Wo Nicholas Sze | 
Tsz Wo Nicholas Sze |
-| [HADOOP-9108](https://issues.apache.org/jira/browse/HADOOP-9108) | Add a 
method to clear terminateCalled to ExitUtil for test cases |  Major | util | 
Kihwal Lee | Kihwal Lee |
-| [HDFS-4233](https://issues.apache.org/jira/browse/HDFS-4233) | NN keeps 
serving even after no journals started while rolling edit |  Blocker | namenode 
| Kihwal Lee | Kihwal Lee |
-| [YARN-251](https://issues.apache.org/jira/browse/YARN-251) | Proxy URI 
generation fails for blank tracking URIs |  Major | resourcemanager | Tom White 
| Tom White |
-| [MAPREDUCE-4836](https://issues.apache.org/jira/browse/MAPREDUCE-4836) | 
Elapsed time for running tasks on AM web UI tasks page is 0 |  Major | . | Ravi 
Prakash | Ravi Prakash |
-| [HDFS-4254](https://issues.apache.org/jira/browse/HDFS-4254) | 
testAllEditsDirsFailOnFlush makes subsequent test cases fail (0.23.6 only) |  
Major | test | Kihwal Lee | Kihwal Lee |
-| [YARN-72](https://issues.apache.org/jira/browse/YARN-72) | NM should handle 
cleaning up containers when it shuts down |  Major | nodemanager | Hitesh Shah 
| Sandy Ryza |
-| [YARN-258](https://issues.apache.org/jira/browse/YARN-258) | RM web page UI 
shows Invalid Date for start and finish times |  Major | resourcemanager | Ravi 
Prakash | Ravi Prakash |
-| [YARN-266](https://issues.apache.org/jira/browse/YARN-266) | RM and JHS Web 
UIs are blank because AppsBlock is not escaping string properly |  Critical | 
resourcemanager | Ravi Prakash | Ravi Prakash |
-| [MAPREDUCE-4861](https://issues.apache.org/jira/browse/MAPREDUCE-4861) | 
Cleanup: Remove unused mapreduce.security.token.DelegationTokenRenewal |  Major 
| . | Karthik Kambatla | Karthik Kambatla |
-| [MAPREDUCE-4856](https://issues.apache.org/jira/browse/MAPREDUCE-4856) | 
TestJobOutputCommitter uses same directory as TestJobCleanup |  Major | test | 
Sandy Ryza | Sandy Ryza |
-| [HADOOP-9135](https://issues.apache.org/jira/browse/HADOOP-9135) | 
JniBasedUnixGroupsMappingWithFallback should log at debug rather than info 
during fallback |  Trivial | security | Colin P. McCabe | Colin P. McCabe |
-| [HDFS-4315](https://issues.apache.org/jira/browse/HDFS-4315) | DNs with 
multiple BPs can have BPOfferServices fail to start due to unsynchronized map 
access |  Major | datanode | Aaron T. Myers | Aaron T. Myers |
-| [HDFS-4232](https://issues.apache.org/jira/browse/HDFS-4232) | NN fails to 
write a fsimage with stale leases |  Blocker | namenode | Daryn Sharp | Daryn 
Sharp |
-| [HADOOP-9152](https://issues.apache.org/jira/browse/HADOOP-9152) | HDFS can 
report negative DFS Used on clusters with very small amounts of data |  Minor | 
fs | Brock Noland | Brock Noland |
-| [YARN-223](https://issues.apache.org/jira/browse/YARN-223) | Change 
processTree interface to work better with native code |  Critical | . | Radim 
Kolar | Radim Kolar |
-| [MAPREDUCE-4895](https://issues.apache.org/jira/browse/MAPREDUCE-4895) | Fix 
compilation failure of 
org.apache.hadoop.mapred.gridmix.TestResourceUsageEmulators |  Major | . | 
Dennis Y | Dennis Y |
-| [HADOOP-9105](https://issues.apache.org/jira/browse/HADOOP-9105) | FsShell 
-moveFromLocal erroneously fails |  Major | fs | Daryn Sharp | Daryn Sharp |
-| [MAPREDUCE-4842](https://issues.apache.org/jira/browse/MAPREDUCE-4842) | 
Shuffle race can hang reducer |  Blocker | mrv2 | Jason Lowe | Mariappan Asokan 
|
-| [MAPREDUCE-4833](https://issues.apache.org/jira/browse/MAPREDUCE-4833) | 
Task can get stuck in FAIL\_CONTAINER\_CLEANUP |  Critical | applicationmaster, 
mrv2 | Robert Joseph Evans | Robert Parker |
-| [MAPREDUCE-4890](https://issues.apache.org/jira/browse/MAPREDUCE-4890) | 
Invalid TaskImpl state transitions when task fails while speculating |  
Critical | mr-am | Jason Lowe | Jason Lowe |
-| [HADOOP-9169](https://issues.apache.org/jira/browse/HADOOP-9169) | Bring 
branch-0.23 ExitUtil up to same level as branch-2 |  Major | . | Robert Joseph 
Evans | Robert Joseph Evans |
-| [MAPREDUCE-4902](https://issues.apache.org/jira/browse/MAPREDUCE-4902) | Fix 
typo "receievd" should be "received" in log output |  Trivial | . | Albert Chu 
| Albert Chu |
-| [YARN-225](https://issues.apache.org/jira/browse/YARN-225) | Proxy Link in 
RM UI thows NPE in Secure mode |  Critical | resourcemanager | Devaraj K | 
Devaraj K |
-| [MAPREDUCE-4813](https://issues.apache.org/jira/browse/MAPREDUCE-4813) | AM 
timing out during job commit |  Critical | applicationmaster | Jason Lowe | 
Jason Lowe |
-| [YARN-293](https://issues.apache.org/jira/browse/YARN-293) | Node Manager 
leaks LocalizerRunner object for every Container |  Critical | nodemanager | 
Devaraj K | Robert Joseph Evans |
-| [MAPREDUCE-4279](https://issues.apache.org/jira/browse/MAPREDUCE-4279) | 
getClusterStatus() fails with null pointer exception when running jobs in local 
mode |  Major | jobtracker | Rahul Jain | Devaraj K |
-| [HDFS-4270](https://issues.apache.org/jira/browse/HDFS-4270) | Replications 
of the highest priority should be allowed to choose a source datanode that has 
reached its max replication limit |  Minor | namenode | Derek Dagit | Derek 
Dagit |
-| [MAPREDUCE-4832](https://issues.apache.org/jira/browse/MAPREDUCE-4832) | MR 
AM can get in a split brain situation |  Critical | applicationmaster | Robert 
Joseph Evans | Jason Lowe |
-| [MAPREDUCE-4894](https://issues.apache.org/jira/browse/MAPREDUCE-4894) | 
Renewal / cancellation of JobHistory tokens |  Blocker | jobhistoryserver, mrv2 
| Siddharth Seth | Siddharth Seth |
-| [MAPREDUCE-4819](https://issues.apache.org/jira/browse/MAPREDUCE-4819) | AM 
can rerun job after reporting final job status to the client |  Blocker | mr-am 
| Jason Lowe | Bikas Saha |
-| [MAPREDUCE-4913](https://issues.apache.org/jira/browse/MAPREDUCE-4913) | 
TestMRAppMaster#testMRAppMasterMissingStaging occasionally exits |  Major | 
mr-am | Jason Lowe | Jason Lowe |
-| [YARN-170](https://issues.apache.org/jira/browse/YARN-170) | NodeManager 
stop() gets called twice on shutdown |  Major | nodemanager | Sandy Ryza | 
Sandy Ryza |
-| [HADOOP-9181](https://issues.apache.org/jira/browse/HADOOP-9181) | Set 
daemon flag for HttpServer's QueuedThreadPool |  Major | . | Liang Xie | Liang 
Xie |
-| [YARN-320](https://issues.apache.org/jira/browse/YARN-320) | RM should 
always be able to renew its own tokens |  Blocker | resourcemanager | Daryn 
Sharp | Daryn Sharp |
-| [YARN-325](https://issues.apache.org/jira/browse/YARN-325) | RM 
CapacityScheduler can deadlock when getQueueInfo() is called and a container is 
completing |  Blocker | capacityscheduler | Jason Lowe | Arun C Murthy |
-| [MAPREDUCE-4848](https://issues.apache.org/jira/browse/MAPREDUCE-4848) | 
TaskAttemptContext cast error during AM recovery |  Major | mr-am | Jason Lowe 
| Jerry Chen |
-| [HADOOP-9097](https://issues.apache.org/jira/browse/HADOOP-9097) | Maven RAT 
plugin is not checking all source files |  Critical | build | Tom White | 
Thomas Graves |
-| [HDFS-4385](https://issues.apache.org/jira/browse/HDFS-4385) | Maven RAT 
plugin is not checking all source files |  Critical | build | Thomas Graves | 
Thomas Graves |
-| [MAPREDUCE-4934](https://issues.apache.org/jira/browse/MAPREDUCE-4934) | 
Maven RAT plugin is not checking all source files |  Critical | build | Thomas 
Graves | Thomas Graves |
-| [YARN-334](https://issues.apache.org/jira/browse/YARN-334) | Maven RAT 
plugin is not checking all source files |  Critical | . | Thomas Graves | 
Thomas Graves |
-| [MAPREDUCE-4678](https://issues.apache.org/jira/browse/MAPREDUCE-4678) | 
Running the Pentomino example with defaults throws 
java.lang.NegativeArraySizeException |  Minor | examples | Chris McConnell | 
Chris McConnell |
-| [MAPREDUCE-4925](https://issues.apache.org/jira/browse/MAPREDUCE-4925) | The 
pentomino option parser may be buggy |  Major | examples | Karthik Kambatla | 
Karthik Kambatla |
-| [MAPREDUCE-4921](https://issues.apache.org/jira/browse/MAPREDUCE-4921) | 
JobClient should acquire HS token with RM principal |  Blocker | client | Daryn 
Sharp | Daryn Sharp |
-| [HDFS-4426](https://issues.apache.org/jira/browse/HDFS-4426) | Secondary 
namenode shuts down immediately after startup |  Blocker | namenode | Jason 
Lowe | Arpit Agarwal |
-| [YARN-354](https://issues.apache.org/jira/browse/YARN-354) | 
WebAppProxyServer exits immediately after startup |  Blocker | . | Liang Xie | 
Liang Xie |
-| [HADOOP-9242](https://issues.apache.org/jira/browse/HADOOP-9242) | Duplicate 
surefire plugin config in hadoop-common |  Major | test | Andrey Klochkov | 
Andrey Klochkov |
-| [HADOOP-9255](https://issues.apache.org/jira/browse/HADOOP-9255) | 
relnotes.py missing last jira |  Critical | scripts | Thomas Graves | Thomas 
Graves |
-
-
-### TESTS:
-
-| JIRA | Summary | Priority | Component | Reporter | Contributor |
-|:---- |:---- | :--- |:---- |:---- |:---- |
-| [HADOOP-9038](https://issues.apache.org/jira/browse/HADOOP-9038) | provide 
unit-test coverage of class 
org.apache.hadoop.fs.LocalDirAllocator.AllocatorPerContext.PathIterator |  
Minor | . | Ivan A. Veselovsky | Ivan A. Veselovsky |
-| [HADOOP-9217](https://issues.apache.org/jira/browse/HADOOP-9217) | Print 
thread dumps when hadoop-common tests fail |  Major | test | Andrey Klochkov | 
Andrey Klochkov |
-
-
-### SUB-TASKS:
-
-| JIRA | Summary | Priority | Component | Reporter | Contributor |
-|:---- |:---- | :--- |:---- |:---- |:---- |
-| [HADOOP-9020](https://issues.apache.org/jira/browse/HADOOP-9020) | Add a 
SASL PLAIN server |  Major | ipc, security | Daryn Sharp | Daryn Sharp |
-| [YARN-204](https://issues.apache.org/jira/browse/YARN-204) | test coverage 
for org.apache.hadoop.tools |  Major | applications | Aleksey Gorshkov | 
Aleksey Gorshkov |
-| [HDFS-4247](https://issues.apache.org/jira/browse/HDFS-4247) | saveNamespace 
should be tolerant of dangling lease |  Blocker | namenode | Daryn Sharp | 
Daryn Sharp |
-| [HDFS-4248](https://issues.apache.org/jira/browse/HDFS-4248) | Renames may 
remove file leases |  Blocker | namenode | Daryn Sharp | Daryn Sharp |
-| [YARN-280](https://issues.apache.org/jira/browse/YARN-280) | RM does not 
reject app submission with invalid tokens |  Major | resourcemanager | Daryn 
Sharp | Daryn Sharp |
-| [YARN-50](https://issues.apache.org/jira/browse/YARN-50) | Implement renewal 
/ cancellation of Delegation Tokens |  Blocker | . | Siddharth Seth | Siddharth 
Seth |
-
-
-### OTHER:
-
-| JIRA | Summary | Priority | Component | Reporter | Contributor |
-|:---- |:---- | :--- |:---- |:---- |:---- |
-| [HADOOP-8427](https://issues.apache.org/jira/browse/HADOOP-8427) | Convert 
Forrest docs to APT, incremental |  Major | documentation | Eli Collins | Andy 
Isaacson |
-
-

http://git-wip-us.apache.org/repos/asf/hadoop/blob/4b8c2b1c/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.7/CHANGELOG.0.23.7.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 0.23.7 - 2013-04-18
+
+### INCOMPATIBLE CHANGES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-395](https://issues.apache.org/jira/browse/HDFS-395) | DFS 
Scalability: Incremental block reports |  Major | datanode, namenode | dhruba 
borthakur | Tomasz Nykiel |
+
+
+### NEW FEATURES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-9209](https://issues.apache.org/jira/browse/HADOOP-9209) | Add shell 
command to dump file checksums |  Major | fs, tools | Todd Lipcon | Todd Lipcon 
|
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-7358](https://issues.apache.org/jira/browse/HADOOP-7358) | Improve 
log levels when exceptions caught in RPC handler |  Minor | ipc | Todd Lipcon | 
Todd Lipcon |
+| [HADOOP-7886](https://issues.apache.org/jira/browse/HADOOP-7886) | Add 
toString to FileStatus |  Minor | . | Jakob Homan | SreeHari |
+| [HADOOP-8214](https://issues.apache.org/jira/browse/HADOOP-8214) | make 
hadoop script recognize a full set of deprecated commands |  Major | scripts | 
Roman Shaposhnik | Roman Shaposhnik |
+| [HADOOP-8711](https://issues.apache.org/jira/browse/HADOOP-8711) | provide 
an option for IPC server users to avoid printing stack information for certain 
exceptions |  Major | ipc | Brandon Li | Brandon Li |
+| [HDFS-3817](https://issues.apache.org/jira/browse/HDFS-3817) | avoid 
printing stack information for SafeModeException |  Major | namenode | Brandon 
Li | Brandon Li |
+| [HADOOP-8075](https://issues.apache.org/jira/browse/HADOOP-8075) | Lower 
native-hadoop library log from info to debug |  Major | native | Eli Collins | 
Hızır Sefa İrken |
+| [HADOOP-9147](https://issues.apache.org/jira/browse/HADOOP-9147) | Add 
missing fields to FIleStatus.toString |  Trivial | . | Jonathan Allen | 
Jonathan Allen |
+| [MAPREDUCE-4907](https://issues.apache.org/jira/browse/MAPREDUCE-4907) | 
TrackerDistributedCacheManager issues too many getFileStatus calls |  Major | 
mrv1, tasktracker | Sandy Ryza | Sandy Ryza |
+| [HADOOP-9216](https://issues.apache.org/jira/browse/HADOOP-9216) | 
CompressionCodecFactory#getCodecClasses should trim the result of parsing by 
Configuration. |  Major | io | Tsuyoshi Ozawa | Tsuyoshi Ozawa |
+| [HADOOP-8849](https://issues.apache.org/jira/browse/HADOOP-8849) | 
FileUtil#fullyDelete should grant the target directories +rwx permissions 
before trying to delete them |  Minor | . | Ivan A. Veselovsky | Ivan A. 
Veselovsky |
+| [MAPREDUCE-4458](https://issues.apache.org/jira/browse/MAPREDUCE-4458) | 
Warn if java.library.path is used for AM or Task |  Major | mrv2 | Robert 
Joseph Evans | Robert Parker |
+| [MAPREDUCE-4949](https://issues.apache.org/jira/browse/MAPREDUCE-4949) | 
Enable multiple pi jobs to run in parallel |  Minor | examples | Sandy Ryza | 
Sandy Ryza |
+| [HADOOP-9247](https://issues.apache.org/jira/browse/HADOOP-9247) | 
parametrize Clover "generateXxx" properties to make them re-definable via -D in 
mvn calls |  Minor | . | Ivan A. Veselovsky | Ivan A. Veselovsky |
+| [MAPREDUCE-4822](https://issues.apache.org/jira/browse/MAPREDUCE-4822) | 
Unnecessary conversions in History Events |  Trivial | jobhistoryserver | 
Robert Joseph Evans | Chu Tong |
+| [MAPREDUCE-4989](https://issues.apache.org/jira/browse/MAPREDUCE-4989) | 
JSONify DataTables input data for Attempts page |  Major | jobhistoryserver, 
mr-am | Ravi Prakash | Ravi Prakash |
+| [YARN-249](https://issues.apache.org/jira/browse/YARN-249) | Capacity 
Scheduler web page should show list of active users per queue like it used to 
(in 1.x) |  Major | capacityscheduler | Ravi Prakash | Ravi Prakash |
+| [HADOOP-9336](https://issues.apache.org/jira/browse/HADOOP-9336) | Allow UGI 
of current connection to be queried |  Critical | ipc | Daryn Sharp | Daryn 
Sharp |
+| [HADOOP-9352](https://issues.apache.org/jira/browse/HADOOP-9352) | Expose 
UGI.setLoginUser for tests |  Major | security | Daryn Sharp | Daryn Sharp |
+| [HADOOP-8462](https://issues.apache.org/jira/browse/HADOOP-8462) | 
Native-code implementation of bzip2 codec |  Major | io | Govind Kamat | Govind 
Kamat |
+| [HADOOP-9374](https://issues.apache.org/jira/browse/HADOOP-9374) | Add 
tokens from -tokenCacheFile into UGI |  Major | security | Daryn Sharp | Daryn 
Sharp |
+| [YARN-443](https://issues.apache.org/jira/browse/YARN-443) | allow OS 
scheduling priority of NM to be different than the containers it launches |  
Major | nodemanager | Thomas Graves | Thomas Graves |
+| [HADOOP-9379](https://issues.apache.org/jira/browse/HADOOP-9379) | capture 
the ulimit info after printing the log to the console |  Trivial | . | Arpit 
Gupta | Arpit Gupta |
+| [MAPREDUCE-4990](https://issues.apache.org/jira/browse/MAPREDUCE-4990) | 
Construct debug strings conditionally in ShuffleHandler.Shuffle#sendMapOutput() 
|  Trivial | . | Karthik Kambatla | Karthik Kambatla |
+| [HADOOP-9253](https://issues.apache.org/jira/browse/HADOOP-9253) | Capture 
ulimit info in the logs at service start time |  Major | . | Arpit Gupta | 
Arpit Gupta |
+| [YARN-525](https://issues.apache.org/jira/browse/YARN-525) | make CS 
node-locality-delay refreshable |  Major | capacityscheduler | Thomas Graves | 
Thomas Graves |
+| [MAPREDUCE-5079](https://issues.apache.org/jira/browse/MAPREDUCE-5079) | 
Recovery should restore task state from job history info directly |  Critical | 
mr-am | Jason Lowe | Jason Lowe |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [MAPREDUCE-3952](https://issues.apache.org/jira/browse/MAPREDUCE-3952) | In 
MR2, when Total input paths to process == 1, CombinefileInputFormat.getSplits() 
returns 0 split. |  Major | mrv2 | Zhenxiao Luo | Bhallamudi Venkata Siva 
Kamesh |
+| [HDFS-1765](https://issues.apache.org/jira/browse/HDFS-1765) | Block 
Replication should respect under-replication block priority |  Major | namenode 
| Hairong Kuang | Uma Maheswara Rao G |
+| [MAPREDUCE-4007](https://issues.apache.org/jira/browse/MAPREDUCE-4007) | 
JobClient getJob(JobID) should return NULL if the job does not exist (for 
backwards compatibility) |  Major | mrv2 | Alejandro Abdelnur | Alejandro 
Abdelnur |
+| [HADOOP-6941](https://issues.apache.org/jira/browse/HADOOP-6941) | Support 
non-SUN JREs in UserGroupInformation |  Major | . | Stephen Watt | Devaraj Das |
+| [HADOOP-8251](https://issues.apache.org/jira/browse/HADOOP-8251) | 
SecurityUtil.fetchServiceTicket broken after HADOOP-6941 |  Blocker | security 
| Todd Lipcon | Todd Lipcon |
+| [HDFS-3119](https://issues.apache.org/jira/browse/HDFS-3119) | 
Overreplicated block is not deleted even after the replication factor is 
reduced after sync follwed by closing that file |  Minor | namenode | 
J.Andreina | Ashish Singhi |
+| [HDFS-3256](https://issues.apache.org/jira/browse/HDFS-3256) | HDFS 
considers blocks under-replicated if topology script is configured with only 1 
rack |  Major | . | Aaron T. Myers | Aaron T. Myers |
+| [HADOOP-8346](https://issues.apache.org/jira/browse/HADOOP-8346) | Changes 
to support Kerberos with non Sun JVM (HADOOP-6941) broke SPNEGO |  Blocker | 
security | Alejandro Abdelnur | Devaraj Das |
+| [MAPREDUCE-4470](https://issues.apache.org/jira/browse/MAPREDUCE-4470) | Fix 
TestCombineFileInputFormat.testForEmptyFile |  Major | test | Kihwal Lee | Ilya 
Katsov |
+| [YARN-83](https://issues.apache.org/jira/browse/YARN-83) | Change package of 
YarnClient to include apache |  Major | client | Bikas Saha | Bikas Saha |
+| [YARN-40](https://issues.apache.org/jira/browse/YARN-40) | Provide support 
for missing yarn commands |  Major | client | Devaraj K | Devaraj K |
+| [YARN-150](https://issues.apache.org/jira/browse/YARN-150) | 
AppRejectedTransition does not unregister app from master service and scheduler 
|  Major | . | Bikas Saha | Bikas Saha |
+| [HADOOP-8878](https://issues.apache.org/jira/browse/HADOOP-8878) | uppercase 
namenode hostname causes hadoop dfs calls with webhdfs filesystem and fsck to 
fail when security is on |  Major | . | Arpit Gupta | Arpit Gupta |
+| [HDFS-4072](https://issues.apache.org/jira/browse/HDFS-4072) | On file 
deletion remove corresponding blocks pending replication |  Minor | namenode | 
Jing Zhao | Jing Zhao |
+| [HDFS-2434](https://issues.apache.org/jira/browse/HDFS-2434) | 
TestNameNodeMetrics.testCorruptBlock fails intermittently |  Major | test | Uma 
Maheswara Rao G | Jing Zhao |
+| [MAPREDUCE-4637](https://issues.apache.org/jira/browse/MAPREDUCE-4637) | 
Killing an unassigned task attempt causes the job to fail |  Major | mrv2 | Tom 
White | Mayank Bansal |
+| [MAPREDUCE-4278](https://issues.apache.org/jira/browse/MAPREDUCE-4278) | 
cannot run two local jobs in parallel from the same gateway. |  Major | . | 
Araceli Henley | Sandy Ryza |
+| [HADOOP-9155](https://issues.apache.org/jira/browse/HADOOP-9155) | 
FsPermission should have different default value, 777 for directory and 666 for 
file |  Minor | . | Binglin Chang | Binglin Chang |
+| [HADOOP-8816](https://issues.apache.org/jira/browse/HADOOP-8816) | HTTP 
Error 413 full HEAD if using kerberos authentication |  Major | net | Moritz 
Moeller | Moritz Moeller |
+| [HADOOP-9212](https://issues.apache.org/jira/browse/HADOOP-9212) | Potential 
deadlock in FileSystem.Cache/IPC/UGI |  Major | fs | Tom White | Tom White |
+| [HADOOP-9193](https://issues.apache.org/jira/browse/HADOOP-9193) | hadoop 
script can inadvertently expand wildcard arguments when delegating to hdfs 
script |  Minor | scripts | Jason Lowe | Andy Isaacson |
+| [MAPREDUCE-4946](https://issues.apache.org/jira/browse/MAPREDUCE-4946) | 
Type conversion of map completion events leads to performance problems with 
large jobs |  Critical | mr-am | Jason Lowe | Jason Lowe |
+| [HADOOP-9231](https://issues.apache.org/jira/browse/HADOOP-9231) | 
Parametrize staging URL for the uniformity of distributionManagement |  Major | 
build | Konstantin Boudnik | Konstantin Boudnik |
+| [HDFS-4426](https://issues.apache.org/jira/browse/HDFS-4426) | Secondary 
namenode shuts down immediately after startup |  Blocker | namenode | Jason 
Lowe | Arpit Agarwal |
+| [YARN-354](https://issues.apache.org/jira/browse/YARN-354) | 
WebAppProxyServer exits immediately after startup |  Blocker | . | Liang Xie | 
Liang Xie |
+| [HADOOP-8857](https://issues.apache.org/jira/browse/HADOOP-8857) | 
hadoop.http.authentication.signature.secret.file docs should not state that 
secret is randomly generated |  Minor | security | Eli Collins | Alejandro 
Abdelnur |
+| [HDFS-4444](https://issues.apache.org/jira/browse/HDFS-4444) | Add space 
between total transaction time and number of transactions in 
FSEditLog#printStatistics |  Trivial | . | Stephen Chu | Stephen Chu |
+| [YARN-133](https://issues.apache.org/jira/browse/YARN-133) | update web 
services docs for RM clusterMetrics |  Major | resourcemanager | Thomas Graves 
| Ravi Prakash |
+| [HADOOP-9190](https://issues.apache.org/jira/browse/HADOOP-9190) | packaging 
docs is broken |  Major | documentation | Thomas Graves | Andy Isaacson |
+| [HDFS-4288](https://issues.apache.org/jira/browse/HDFS-4288) | NN accepts 
incremental BR as IBR in safemode |  Critical | namenode | Daryn Sharp | Daryn 
Sharp |
+| [HADOOP-9221](https://issues.apache.org/jira/browse/HADOOP-9221) | Convert 
remaining xdocs to APT |  Major | . | Andy Isaacson | Andy Isaacson |
+| [YARN-343](https://issues.apache.org/jira/browse/YARN-343) | Capacity 
Scheduler maximum-capacity value -1 is invalid |  Major | capacityscheduler | 
Thomas Graves | Xuan Gong |
+| [MAPREDUCE-4893](https://issues.apache.org/jira/browse/MAPREDUCE-4893) | MR 
AppMaster can do sub-optimal assignment of containers to map tasks leading to 
poor node locality |  Major | applicationmaster | Bikas Saha | Bikas Saha |
+| [MAPREDUCE-4969](https://issues.apache.org/jira/browse/MAPREDUCE-4969) | 
TestKeyValueTextInputFormat test fails with Open JDK 7 |  Major | test | Arpit 
Agarwal | Arpit Agarwal |
+| [YARN-364](https://issues.apache.org/jira/browse/YARN-364) | 
AggregatedLogDeletionService can take too long to delete logs |  Major | . | 
Jason Lowe | Jason Lowe |
+| [HDFS-4462](https://issues.apache.org/jira/browse/HDFS-4462) | 2NN will fail 
to checkpoint after an HDFS upgrade from a pre-federation version of HDFS |  
Major | namenode | Aaron T. Myers | Aaron T. Myers |
+| [YARN-360](https://issues.apache.org/jira/browse/YARN-360) | Allow apps to 
concurrently register tokens for renewal |  Critical | . | Daryn Sharp | Daryn 
Sharp |
+| [MAPREDUCE-4953](https://issues.apache.org/jira/browse/MAPREDUCE-4953) | 
HadoopPipes misuses fprintf |  Major | pipes | Andy Isaacson | Andy Isaacson |
+| [HADOOP-9278](https://issues.apache.org/jira/browse/HADOOP-9278) | 
HarFileSystem may leak file handle |  Major | fs | Chris Nauroth | Chris 
Nauroth |
+| [YARN-357](https://issues.apache.org/jira/browse/YARN-357) | App submission 
should not be synchronized |  Major | resourcemanager | Daryn Sharp | Daryn 
Sharp |
+| [YARN-355](https://issues.apache.org/jira/browse/YARN-355) | RM app 
submission jams under load |  Blocker | resourcemanager | Daryn Sharp | Daryn 
Sharp |
+| [HADOOP-9289](https://issues.apache.org/jira/browse/HADOOP-9289) | FsShell 
rm -f fails for non-matching globs |  Blocker | fs | Daryn Sharp | Daryn Sharp |
+| [MAPREDUCE-4671](https://issues.apache.org/jira/browse/MAPREDUCE-4671) | AM 
does not tell the RM about container requests that are no longer needed |  
Major | . | Bikas Saha | Bikas Saha |
+| [HADOOP-9124](https://issues.apache.org/jira/browse/HADOOP-9124) | 
SortedMapWritable violates contract of Map interface for equals() and 
hashCode() |  Minor | io | Patrick Hunt | Surenkumar Nihalani |
+| [YARN-362](https://issues.apache.org/jira/browse/YARN-362) | Unexpected 
extra results when using webUI table search |  Minor | . | Jason Lowe | Ravi 
Prakash |
+| [HADOOP-9302](https://issues.apache.org/jira/browse/HADOOP-9302) | HDFS docs 
not linked from top level |  Major | documentation | Thomas Graves | Andy 
Isaacson |
+| [HADOOP-9303](https://issues.apache.org/jira/browse/HADOOP-9303) | command 
manual dfsadmin missing entry for restoreFailedStorage option |  Major | . | 
Thomas Graves | Andy Isaacson |
+| [MAPREDUCE-5000](https://issues.apache.org/jira/browse/MAPREDUCE-5000) | 
TaskImpl.getCounters() can return the counters for the wrong task attempt when 
task is speculating |  Critical | mr-am | Jason Lowe | Jason Lowe |
+| [HDFS-4495](https://issues.apache.org/jira/browse/HDFS-4495) | Allow 
client-side lease renewal to be retried beyond soft-limit |  Major | 
hdfs-client | Kihwal Lee | Kihwal Lee |
+| [HADOOP-9154](https://issues.apache.org/jira/browse/HADOOP-9154) | 
SortedMapWritable#putAll() doesn't add key/value classes to the map |  Major | 
io | Karthik Kambatla | Karthik Kambatla |
+| [MAPREDUCE-5009](https://issues.apache.org/jira/browse/MAPREDUCE-5009) | 
Killing the Task Attempt slated for commit does not clear the value from the 
Task commitAttempt member |  Critical | mrv1 | Robert Parker | Robert Parker |
+| [YARN-400](https://issues.apache.org/jira/browse/YARN-400) | RM can return 
null application resource usage report leading to NPE in client |  Critical | 
resourcemanager | Jason Lowe | Jason Lowe |
+| [YARN-236](https://issues.apache.org/jira/browse/YARN-236) | RM should point 
tracking URL to RM web page when app fails to start |  Major | resourcemanager 
| Jason Lowe | Jason Lowe |
+| [HDFS-4222](https://issues.apache.org/jira/browse/HDFS-4222) | NN is 
unresponsive and loses heartbeats of DNs when Hadoop is configured to use LDAP 
and LDAP has issues |  Minor | namenode | Xiaobo Peng | Xiaobo Peng |
+| [YARN-426](https://issues.apache.org/jira/browse/YARN-426) | Failure to 
download a public resource on a node prevents further downloads of the resource 
from that node |  Critical | nodemanager | Jason Lowe | Jason Lowe |
+| [HADOOP-9339](https://issues.apache.org/jira/browse/HADOOP-9339) | 
IPC.Server incorrectly sets UGI auth type |  Major | ipc | Daryn Sharp | Daryn 
Sharp |
+| [MAPREDUCE-4871](https://issues.apache.org/jira/browse/MAPREDUCE-4871) | AM 
uses mapreduce.jobtracker.split.metainfo.maxsize but mapred-default has 
mapreduce.job.split.metainfo.maxsize |  Major | mrv2 | Jason Lowe | Jason Lowe |
+| [YARN-269](https://issues.apache.org/jira/browse/YARN-269) | Resource 
Manager not logging the health\_check\_script result when taking it out |  
Major | resourcemanager | Thomas Graves | Jason Lowe |
+| [YARN-376](https://issues.apache.org/jira/browse/YARN-376) | Apps that have 
completed can appear as RUNNING on the NM UI |  Blocker | resourcemanager | 
Jason Lowe | Jason Lowe |
+| [YARN-410](https://issues.apache.org/jira/browse/YARN-410) | New lines in 
diagnostics for a failed app on the per-application page make it hard to read | 
 Major | . | Vinod Kumar Vavilapalli | Omkar Vinit Joshi |
+| [MAPREDUCE-4794](https://issues.apache.org/jira/browse/MAPREDUCE-4794) | 
DefaultSpeculator generates error messages on normal shutdown |  Major | 
applicationmaster | Jason Lowe | Jason Lowe |
+| [HDFS-4128](https://issues.apache.org/jira/browse/HDFS-4128) | 2NN gets 
stuck in inconsistent state if edit log replay fails in the middle |  Major | 
namenode | Todd Lipcon | Kihwal Lee |
+| [HDFS-4532](https://issues.apache.org/jira/browse/HDFS-4532) | RPC call 
queue may fill due to current user lookup |  Critical | namenode | Daryn Sharp 
| Daryn Sharp |
+| [YARN-448](https://issues.apache.org/jira/browse/YARN-448) | Remove 
unnecessary hflush from log aggregation |  Major | nodemanager | Kihwal Lee | 
Kihwal Lee |
+| [MAPREDUCE-5043](https://issues.apache.org/jira/browse/MAPREDUCE-5043) | 
Fetch failure processing can cause AM event queue to backup and eventually OOM 
|  Blocker | mr-am | Jason Lowe | Jason Lowe |
+| [YARN-345](https://issues.apache.org/jira/browse/YARN-345) | Many 
InvalidStateTransitonException errors for ApplicationImpl in Node Manager |  
Critical | nodemanager | Devaraj K | Robert Parker |
+| [HDFS-4553](https://issues.apache.org/jira/browse/HDFS-4553) | Webhdfs will 
NPE on some unexpected response codes |  Major | webhdfs | Daryn Sharp | Daryn 
Sharp |
+| [YARN-227](https://issues.apache.org/jira/browse/YARN-227) | Application 
expiration difficult to debug for end-users |  Major | resourcemanager | Jason 
Lowe | Jason Lowe |
+| [MAPREDUCE-5027](https://issues.apache.org/jira/browse/MAPREDUCE-5027) | 
Shuffle does not limit number of outstanding connections |  Major | . | Jason 
Lowe | Robert Parker |
+| [MAPREDUCE-3685](https://issues.apache.org/jira/browse/MAPREDUCE-3685) | 
There are some bugs in implementation of MergeManager |  Critical | mrv2 | 
anty.rao | anty |
+| [HDFS-4544](https://issues.apache.org/jira/browse/HDFS-4544) | Error in 
deleting blocks should not do check disk, for all types of errors |  Major | . 
| Amareshwari Sriramadasu | Arpit Agarwal |
+| [MAPREDUCE-5023](https://issues.apache.org/jira/browse/MAPREDUCE-5023) | 
History Server Web Services missing Job Counters |  Critical | 
jobhistoryserver, webapps | Kendall Thrapp | Ravi Prakash |
+| [MAPREDUCE-5060](https://issues.apache.org/jira/browse/MAPREDUCE-5060) | 
Fetch failures that time out only count against the first map task |  Critical 
| . | Robert Joseph Evans | Robert Joseph Evans |
+| [HDFS-3344](https://issues.apache.org/jira/browse/HDFS-3344) | Unreliable 
corrupt blocks counting in TestProcessCorruptBlocks |  Major | namenode | Tsz 
Wo Nicholas Sze | Kihwal Lee |
+| [HADOOP-9406](https://issues.apache.org/jira/browse/HADOOP-9406) | 
hadoop-client leaks dependency on JDK tools jar |  Major | build | Alejandro 
Abdelnur | Alejandro Abdelnur |
+| [MAPREDUCE-5042](https://issues.apache.org/jira/browse/MAPREDUCE-5042) | 
Reducer unable to fetch for a map task that was recovered |  Blocker | mr-am, 
security | Jason Lowe | Jason Lowe |
+| [MAPREDUCE-5053](https://issues.apache.org/jira/browse/MAPREDUCE-5053) | 
java.lang.InternalError from decompression codec cause reducer to fail |  Major 
| . | Robert Parker | Robert Parker |
+| [MAPREDUCE-5075](https://issues.apache.org/jira/browse/MAPREDUCE-5075) | 
DistCp leaks input file handles |  Major | distcp | Chris Nauroth | Chris 
Nauroth |
+| [YARN-109](https://issues.apache.org/jira/browse/YARN-109) | .tmp file is 
not deleted for localized archives |  Major | nodemanager | Jason Lowe | Mayank 
Bansal |
+| [HDFS-4581](https://issues.apache.org/jira/browse/HDFS-4581) | 
DataNode#checkDiskError should not be called on network errors |  Major | 
datanode | Rohit Kochar | Rohit Kochar |
+| [YARN-460](https://issues.apache.org/jira/browse/YARN-460) | CS user left in 
list of active users for the queue even when application finished |  Blocker | 
capacityscheduler | Thomas Graves | Thomas Graves |
+| [MAPREDUCE-4992](https://issues.apache.org/jira/browse/MAPREDUCE-4992) | AM 
hangs in RecoveryService when recovering tasks with speculative attempts |  
Critical | mr-am | Robert Parker | Robert Parker |
+| [HDFS-4649](https://issues.apache.org/jira/browse/HDFS-4649) | Webhdfs 
cannot list large directories |  Blocker | namenode, security, webhdfs | Daryn 
Sharp | Daryn Sharp |
+| [MAPREDUCE-5137](https://issues.apache.org/jira/browse/MAPREDUCE-5137) | AM 
web UI: clicking on Map Task results in 500 error |  Major | applicationmaster 
| Thomas Graves | Thomas Graves |
+
+
+### TESTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-8157](https://issues.apache.org/jira/browse/HADOOP-8157) | 
TestRPCCallBenchmark#testBenchmarkWithWritable fails with RTE |  Major | . | 
Eli Collins | Todd Lipcon |
+| [HADOOP-9067](https://issues.apache.org/jira/browse/HADOOP-9067) | provide 
test for method 
org.apache.hadoop.fs.LocalFileSystem.reportChecksumFailure(Path, 
FSDataInputStream, long, FSDataInputStream, long) |  Minor | . | Ivan A. 
Veselovsky | Ivan A. Veselovsky |
+| [MAPREDUCE-4905](https://issues.apache.org/jira/browse/MAPREDUCE-4905) | 
test org.apache.hadoop.mapred.pipes |  Major | . | Aleksey Gorshkov | Aleksey 
Gorshkov |
+| [MAPREDUCE-4972](https://issues.apache.org/jira/browse/MAPREDUCE-4972) | 
Coverage fixing for org.apache.hadoop.mapreduce.jobhistory |  Major | . | 
Aleksey Gorshkov | Aleksey Gorshkov |
+| [MAPREDUCE-4875](https://issues.apache.org/jira/browse/MAPREDUCE-4875) | 
coverage fixing for org.apache.hadoop.mapred |  Major | test | Aleksey Gorshkov 
| Aleksey Gorshkov |
+| [MAPREDUCE-4991](https://issues.apache.org/jira/browse/MAPREDUCE-4991) | 
coverage for gridmix |  Major | . | Aleksey Gorshkov | Aleksey Gorshkov |
+| [MAPREDUCE-5007](https://issues.apache.org/jira/browse/MAPREDUCE-5007) | fix 
coverage org.apache.hadoop.mapreduce.v2.hs |  Major | . | Aleksey Gorshkov | 
Aleksey Gorshkov |
+
+
+### SUB-TASKS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-2477](https://issues.apache.org/jira/browse/HDFS-2477) | Optimize 
computing the diff between a block report and the namenode state. |  Major | 
namenode | Tomasz Nykiel | Tomasz Nykiel |
+| [HDFS-2495](https://issues.apache.org/jira/browse/HDFS-2495) | Increase 
granularity of write operations in ReplicationMonitor thus reducing contention 
for write lock |  Major | namenode | Tomasz Nykiel | Tomasz Nykiel |
+| [HDFS-2476](https://issues.apache.org/jira/browse/HDFS-2476) | More CPU 
efficient data structure for under-replicated/over-replicated/invalidate blocks 
|  Major | namenode | Tomasz Nykiel | Tomasz Nykiel |
+| [YARN-29](https://issues.apache.org/jira/browse/YARN-29) | Add a yarn-client 
module |  Major | client | Vinod Kumar Vavilapalli | Vinod Kumar Vavilapalli |
+| [HDFS-4542](https://issues.apache.org/jira/browse/HDFS-4542) | Webhdfs 
doesn't support secure proxy users |  Blocker | webhdfs | Daryn Sharp | Daryn 
Sharp |
+| [HDFS-4560](https://issues.apache.org/jira/browse/HDFS-4560) | Webhdfs 
cannot use tokens obtained by another user |  Major | webhdfs | Daryn Sharp | 
Daryn Sharp |
+| [HDFS-4566](https://issues.apache.org/jira/browse/HDFS-4566) | Webdhfs token 
cancelation should use authentication |  Major | webhdfs | Daryn Sharp | Daryn 
Sharp |
+| [HDFS-4567](https://issues.apache.org/jira/browse/HDFS-4567) | Webhdfs does 
not need a token for token operations |  Major | webhdfs | Daryn Sharp | Daryn 
Sharp |
+| [HDFS-4577](https://issues.apache.org/jira/browse/HDFS-4577) | Webhdfs 
operations should declare if authentication is required |  Major | webhdfs | 
Daryn Sharp | Daryn Sharp |
+| [YARN-468](https://issues.apache.org/jira/browse/YARN-468) | coverage fix 
for org.apache.hadoop.yarn.server.webproxy.amfilter |  Major | . | Aleksey 
Gorshkov | Aleksey Gorshkov |
+| [YARN-200](https://issues.apache.org/jira/browse/YARN-200) | yarn log does 
not output all needed information, and is in a binary format |  Major | . | 
Robert Joseph Evans | Ravi Prakash |
+| [HDFS-4548](https://issues.apache.org/jira/browse/HDFS-4548) | Webhdfs 
doesn't renegotiate SPNEGO token |  Blocker | . | Daryn Sharp | Daryn Sharp |
+
+


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