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From omal...@apache.org
Subject svn commit: r808676 - in /hadoop/common/branches/branch-0.20: CHANGES.txt build.xml src/docs/releasenotes.html
Date Thu, 27 Aug 2009 23:22:28 GMT
Author: omalley
Date: Thu Aug 27 23:22:28 2009
New Revision: 808676

URL: http://svn.apache.org/viewvc?rev=808676&view=rev
Log:
Preparing for release 0.20.1

Modified:
    hadoop/common/branches/branch-0.20/CHANGES.txt
    hadoop/common/branches/branch-0.20/build.xml
    hadoop/common/branches/branch-0.20/src/docs/releasenotes.html

Modified: hadoop/common/branches/branch-0.20/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.20/CHANGES.txt?rev=808676&r1=808675&r2=808676&view=diff
==============================================================================
--- hadoop/common/branches/branch-0.20/CHANGES.txt (original)
+++ hadoop/common/branches/branch-0.20/CHANGES.txt Thu Aug 27 23:22:28 2009
@@ -1,6 +1,6 @@
 Hadoop Change Log
 
-Release 0.20.1 - Unreleased
+Release 0.20.1 - 2009-08-27
 
   INCOMPATIBLE CHANGES
 

Modified: hadoop/common/branches/branch-0.20/build.xml
URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.20/build.xml?rev=808676&r1=808675&r2=808676&view=diff
==============================================================================
--- hadoop/common/branches/branch-0.20/build.xml (original)
+++ hadoop/common/branches/branch-0.20/build.xml Thu Aug 27 23:22:28 2009
@@ -27,7 +27,7 @@
  
   <property name="Name" value="Hadoop"/>
   <property name="name" value="hadoop"/>
-  <property name="version" value="0.20.1-dev"/>
+  <property name="version" value="0.20.2-dev"/>
   <property name="final.name" value="${name}-${version}"/>
   <property name="year" value="2009"/>
 

Modified: hadoop/common/branches/branch-0.20/src/docs/releasenotes.html
URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.20/src/docs/releasenotes.html?rev=808676&r1=808675&r2=808676&view=diff
==============================================================================
--- hadoop/common/branches/branch-0.20/src/docs/releasenotes.html (original)
+++ hadoop/common/branches/branch-0.20/src/docs/releasenotes.html Thu Aug 27 23:22:28 2009
@@ -2,7 +2,7 @@
 <html>
 <head>
 <META http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Hadoop 0.20.0 Release Notes</title>
+<title>Hadoop 0.20.1 Release Notes</title>
 <STYLE type="text/css">
 		H1 {font-family: sans-serif}
 		H2 {font-family: sans-serif; margin-left: 7mm}
@@ -10,141 +10,199 @@
 	</STYLE>
 </head>
 <body>
-<h1>Hadoop 0.20.0 Release Notes</h1>
+<h1>Hadoop 0.20.1 Release Notes</h1>
 		These release notes include new developer and user-facing incompatibilities, features,
and major improvements. The table below is sorted by Component.
-		
-		<a name="changes"></a>
-<h2>Changes Since Hadoop 0.19.1</h2>
-<table border="1">
-<tr bgcolor="#DDDDDD">
-<th align="left">Issue</th><th align="left">Component</th><th
align="left">Notes</th>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-3344">HADOOP-3344</a></td><td>build</td><td>Changed
build procedure for libhdfs to build correctly for different platforms. Build instructions
are in the Jira item.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4253">HADOOP-4253</a></td><td>conf</td><td>Removed
 from class org.apache.hadoop.fs.RawLocalFileSystem deprecated methods public String getName(),
public void lock(Path p, boolean shared) and public void release(Path p).</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4454">HADOOP-4454</a></td><td>conf</td><td>Changed
processing of conf/slaves file to allow # to begin a comment.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4631">HADOOP-4631</a></td><td>conf</td><td>Split
hadoop-default.xml into core-default.xml, hdfs-default.xml and mapreduce-default.xml.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4035">HADOOP-4035</a></td><td>contrib/capacity-sched</td><td>Changed
capacity scheduler policy to take note of task memory requirements and task tracker memory
availability.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4445">HADOOP-4445</a></td><td>contrib/capacity-sched</td><td>Changed
JobTracker UI to better present the number of active tasks.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4576">HADOOP-4576</a></td><td>contrib/capacity-sched</td><td>Changed
capacity scheduler UI to better present number of running and pending tasks.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4179">HADOOP-4179</a></td><td>contrib/chukwa</td><td>Introduced
Vaidya rule based performance diagnostic tool for Map/Reduce jobs.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4827">HADOOP-4827</a></td><td>contrib/chukwa</td><td>Improved
framework for data aggregation in Chuckwa.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4843">HADOOP-4843</a></td><td>contrib/chukwa</td><td>Introduced
Chuckwa collection of job history.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-5030">HADOOP-5030</a></td><td>contrib/chukwa</td><td>Changed
RPM install location to the value specified by build.properties file.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-5531">HADOOP-5531</a></td><td>contrib/chukwa</td><td>Disabled
Chukwa unit tests for 0.20 branch only.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4789">HADOOP-4789</a></td><td>contrib/fair-share</td><td>Changed
fair scheduler to divide resources equally between pools, not jobs.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4873">HADOOP-4873</a></td><td>contrib/fair-share</td><td>Changed
fair scheduler UI to display minMaps and minReduces variables.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-3750">HADOOP-3750</a></td><td>dfs</td><td>Removed
deprecated method parseArgs from org.apache.hadoop.fs.FileSystem.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4029">HADOOP-4029</a></td><td>dfs</td><td>Added
name node storage information to the dfshealth page, and moved data node information to a
separated page.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4103">HADOOP-4103</a></td><td>dfs</td><td>Modified
dfsadmin -report to report under replicated blocks. blocks with corrupt replicas, and missing
blocks&quot;.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4567">HADOOP-4567</a></td><td>dfs</td><td>Changed
GetFileBlockLocations to return topology information for nodes that host the block replicas.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4572">HADOOP-4572</a></td><td>dfs</td><td>Moved
org.apache.hadoop.hdfs.{CreateEditsLog, NNThroughputBenchmark} to org.apache.hadoop.hdfs.server.namenode.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4618">HADOOP-4618</a></td><td>dfs</td><td>Moved
HTTP server from FSNameSystem to NameNode. Removed FSNamesystem.getNameNodeInfoPort(). Replaced
FSNamesystem.getDFSNameNodeMachine() and FSNamesystem.getDFSNameNodePort() with new method
 FSNamesystem.getDFSNameNodeAddress(). Removed constructor NameNode(bindAddress, conf).</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4826">HADOOP-4826</a></td><td>dfs</td><td>Introduced
new dfsadmin command saveNamespace to command the name service to do an immediate save of
the file system image.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4970">HADOOP-4970</a></td><td>dfs</td><td>Changed
trash facility to use absolute path of the deleted file.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-5468">HADOOP-5468</a></td><td>documentation</td><td>Reformatted
HTML documentation for Hadoop to use submenus at the left column.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-3497">HADOOP-3497</a></td><td>fs</td><td>Changed
the semantics of file globbing with a PathFilter (using the globStatus method of FileSystem).
Previously, the filtering was too restrictive, so that a glob of /*/* and a filter that only
accepts /a/b would not have matched /a/b. With this change /a/b does match. </td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4234">HADOOP-4234</a></td><td>fs</td><td>Changed
KFS glue layer to allow applications to interface with multiple KFS metaservers.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4422">HADOOP-4422</a></td><td>fs/s3</td><td>Modified
Hadoop file system to no longer create S3 buckets. Applications can create buckets for their
S3 file systems by other means, for example, using the JetS3t API.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-3063">HADOOP-3063</a></td><td>io</td><td>Introduced
BloomMapFile subclass of MapFile that creates a Bloom filter from all keys.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-1230">HADOOP-1230</a></td><td>mapred</td><td>Replaced
parameters with context obejcts in Mapper, Reducer, Partitioner, InputFormat, and OutputFormat
classes.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-1650">HADOOP-1650</a></td><td>mapred</td><td>Upgraded
all core servers to use Jetty 6</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-3923">HADOOP-3923</a></td><td>mapred</td><td>Moved
class org.apache.hadoop.mapred.StatusHttpServer to org.apache.hadoop.http.HttpServer.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-3986">HADOOP-3986</a></td><td>mapred</td><td>Removed
classes org.apache.hadoop.mapred.JobShell and org.apache.hadoop.mapred.TestJobShell. Removed
from JobClient methods static void  setCommandLineConfig(Configuration conf) and public static
Configuration getCommandLineConfig().</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4188">HADOOP-4188</a></td><td>mapred</td><td>Removed
Task's dependency on concrete file systems by taking list from FileSystem class. Added statistics
table to FileSystem class. Deprecated FileSystem method getStatistics(Class&lt;? extends
FileSystem&gt; cls).</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4210">HADOOP-4210</a></td><td>mapred</td><td>Changed
public class org.apache.hadoop.mapreduce.ID to be an abstract class. Removed from class org.apache.hadoop.mapreduce.ID
the methods  public static ID read(DataInput in) and public static ID forName(String str).</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4305">HADOOP-4305</a></td><td>mapred</td><td>Improved
TaskTracker blacklisting strategy to better exclude faulty tracker from executing tasks.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4435">HADOOP-4435</a></td><td>mapred</td><td>Changed
JobTracker web status page to display the amount of heap memory in use. This changes the JobSubmissionProtocol.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4565">HADOOP-4565</a></td><td>mapred</td><td>Improved
MultiFileInputFormat so that multiple blocks from the same node or same rack can be combined
into a single split.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4749">HADOOP-4749</a></td><td>mapred</td><td>Added
a new counter REDUCE_INPUT_BYTES.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4783">HADOOP-4783</a></td><td>mapred</td><td>Changed
history directory permissions to 750 and history file permissions to 740.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-3422">HADOOP-3422</a></td><td>metrics</td><td>Changed
names of ganglia metrics to avoid conflicts and to better identify source function.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4284">HADOOP-4284</a></td><td>security</td><td>Introduced
HttpServer method to support global filters.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4575">HADOOP-4575</a></td><td>security</td><td>Introduced
independent HSFTP proxy server for authenticated access to clusters.</td>
-</tr>
-<tr>
-<td><a href="https://issues.apache.org:443/jira/browse/HADOOP-4661">HADOOP-4661</a></td><td>tools/distcp</td><td>Introduced
distch tool for parallel ch{mod, own, grp}.</td>
-</tr>
-</table>
+<h1>Common</h1>
+
+<h2>        Sub-task
+</h2>
+<ul>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-6213'>HADOOP-6213</a>]
-         Remove commons dependency on commons-cli2
+</li>
+</ul>
+    
+<h2>        Bug
+</h2>
+<ul>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-4626'>HADOOP-4626</a>]
-         API link in forrest doc should point to the same version of hadoop.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-4674'>HADOOP-4674</a>]
-         hadoop fs -help should list detailed help info for the following commands: test,
text, tail, stat &amp; touchz
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-4856'>HADOOP-4856</a>]
-         Document JobInitializationPoller configuration in capacity scheduler forrest documentation.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-4931'>HADOOP-4931</a>]
-         Document TaskTracker's memory management functionality and CapacityScheduler's memory
based scheduling.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5210'>HADOOP-5210</a>]
-         Reduce Task Progress shows &gt; 100% when the total size of map outputs (for
a single reducer) is high 
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5213'>HADOOP-5213</a>]
-         BZip2CompressionOutputStream NullPointerException
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5349'>HADOOP-5349</a>]
-         When the size required for a path is -1, LocalDirAllocator.getLocalPathForWrite
fails with a DiskCheckerException when the disk it selects is bad.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5533'>HADOOP-5533</a>]
-         Recovery duration shown on the jobtracker webpage is inaccurate
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5539'>HADOOP-5539</a>]
-         o.a.h.mapred.Merger not maintaining map out compression on intermediate files
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5636'>HADOOP-5636</a>]
-         Job is left in Running state after a killJob
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5641'>HADOOP-5641</a>]
-         Possible NPE in CapacityScheduler's MemoryMatcher
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5646'>HADOOP-5646</a>]
-         TestQueueCapacities is failing Hudson tests for the last few builds
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5648'>HADOOP-5648</a>]
-         Not able to generate gridmix.jar on already compiled version of hadoop
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5654'>HADOOP-5654</a>]
-         TestReplicationPolicy.&lt;init&gt; fails on java.net.BindException
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5655'>HADOOP-5655</a>]
-         TestMRServerPorts fails on java.net.BindException
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5688'>HADOOP-5688</a>]
-         HftpFileSystem.getChecksum(..) does not work for the paths with scheme and authority
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5691'>HADOOP-5691</a>]
-         org.apache.hadoop.mapreduce.Reducer should not be abstract.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5711'>HADOOP-5711</a>]
-         Change Namenode file close log to info
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5718'>HADOOP-5718</a>]
-         Capacity Scheduler should not check for presence of default queue while starting
up.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5719'>HADOOP-5719</a>]
-         Jobs failed during job initalization are never removed from Capacity Schedulers
waiting list
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5736'>HADOOP-5736</a>]
-         Update CapacityScheduler documentation to reflect latest changes
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5746'>HADOOP-5746</a>]
-         Errors encountered in MROutputThread after the last map/reduce call can go undetected
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5796'>HADOOP-5796</a>]
-         DFS Write pipeline does not detect defective datanode correctly in some cases (HADOOP-3339)
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5828'>HADOOP-5828</a>]
-         Use absolute path for JobTracker's mapred.local.dir in MiniMRCluster
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5850'>HADOOP-5850</a>]
-         map/reduce doesn't run jobs with 0 maps
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5863'>HADOOP-5863</a>]
-         mapred metrics shows negative count of waiting maps and reduces 
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5869'>HADOOP-5869</a>]
-         TestQueueCapacitisues.apache.org/jjira/browse/HADOOP-OP-6017</a>] -      
  NameNode and SecondaryNameNode fail to restart because of abnormal filenames.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-6097'>HADOOP-6097</a>]
-         Multiple bugs w/ Hadoop archives
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-6139'>HADOOP-6139</a>]
-         Incomplete help message is displayed for rm and rmr options.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-6141'>HADOOP-6141</a>]
-         hadoop 0.20 branch &quot;test-patch&quot; is broken
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-6145'>HADOOP-6145</a>]
-         No error message for deleting non-existant file or directory.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-6215'>HADOOP-6215</a>]
-         fix GenericOptionParser to deal with -D with '=' in the value
+</li>
+</ul>
+    
+<h2>        Improvement
+</h2>
+<ul>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5726'>HADOOP-5726</a>]
-         Remove pre-emption from the capacity scheduler code base
+</li>
+</ul>
+    
+<h2>        New Feature
+</h2>
+<ul>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-3315'>HADOOP-3315</a>]
-         New binary file format
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-5714'>HADOOP-5714</a>]
-         Metric to show number of fs.exists (or number of getFileInfo) calls
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HADOOP-6080'>HADOOP-6080</a>]
-         Handling of  Trash with quota
+</li>
+</ul>
+
+<h1>HDFS</h1>
+
+<h2>        Bug
+</h2>
+<ul>
+  <li>[<a href='https://issues.apache.org/jira/browse/HDFS-26'>HDFS-26</a>]
-           HADOOP-5862 for version .20  (Namespace quota exceeded message unclear)
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-167'>HDFS-167</a>]
-         DFSClient continues to retry indefinitely
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-438'>HDFS-438</a>]
-         Improve help message for quotas
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-442'>HDFS-442</a>]
-         dfsthroughput in test.jar throws NPE
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-485'>HDFS-485</a>]
-         error : too many fetch failures
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-495'>HDFS-495</a>]
-         Hadoop FSNamesystem startFileInternal() getLease() has bug
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-525'>HDFS-525</a>]
-         ListPathsServlet.java uses static SimpleDateFormat that has threading issues
+</li>
+</ul>
+    
+<h2>        Improvement
+</h2>
+<ul>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-504'>HDFS-504</a>]
-         HDFS updates the modification time of a file when the file is closed.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-527'>HDFS-527</a>]
-         Refactor DFSClient constructors
+</li>
+</ul>
+                                
+<h1>Map/Reduce</h1>
+
+<h2>        Bug
+</h2>
+<ul>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-2'>MAPREDUCE-2</a>]
-         ArrayOutOfIndex error in KeyFieldBasedPartitioner on empty key
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-18'>MAPREDUCE-18</a>]
-         Under load the shuffle sometimes gets incorrect data
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-40'>MAPREDUCE-40</a>]
-         Memory management variables need a backwards compatibility option after HADOOP-5881
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-112'>MAPREDUCE-112</a>]
-         Reduce Input Records and Reduce Output Records counters are not being set when using
the new Mapreduce reducer API
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-124'>MAPREDUCE-124</a>]
-         When abortTask of OutputCommitter fails with an Exception for a map-only job, the
task is marked as success
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-130'>MAPREDUCE-130</a>]
-         Delete the jobconf copy from the log directory of the JobTracker when the job is
retired
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-179'>MAPREDUCE-179</a>]
-         setProgress not called for new RecordReaders
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-383'>MAPREDUCE-383</a>]
-         pipes combiner does not reset properly after a spill
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-421'>MAPREDUCE-421</a>]
-         mapred pipes might return exit code 0 even when failing
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-430'>MAPREDUCE-430</a>]
-         Task stuck in cleanup with OutOfMemoryErrors
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-565'>MAPREDUCE-565</a>]
-         Partitioner does not work with new API
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-657'>MAPREDUCE-657</a>]
-         CompletedJobStatusStore hardcodes filesystem to hdfs
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-735'>MAPREDUCE-735</a>]
-         ArrayIndexOutOfBoundsException is thrown by KeyFieldBasedPartitioner
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-745'>MAPREDUCE-745</a>]
-         TestRecoveryManager fails sometimes
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-796'>MAPREDUCE-796</a>]
-         Encountered &quot;ClassCastException&quot; on tasktracker while running
wordcount with MultithreadedMapRunner
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-805'>MAPREDUCE-805</a>]
-         Deadlock in Jobtracker
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-806'>MAPREDUCE-806</a>]
-         WordCount example does not compile given the current instructions
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-807'>MAPREDUCE-807</a>]
-         Stray user files in mapred.system.dir with permissions other than 777 can prevent
the jobtracker from starting up.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-818'>MAPREDUCE-818</a>]
-         org.apache.hadoop.mapreduce.Counters.getGroup returns null if the group name doesnt
exist.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-827'>MAPREDUCE-827</a>]
-         &quot;hadoop job -status &lt;jobid&gt;&quot; command should display
job's completion status also.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-832'>MAPREDUCE-832</a>]
-         Too many WARN messages about deprecated memorty config variables in JobTacker log
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-834'>MAPREDUCE-834</a>]
-         When TaskTracker config use old memory management values its memory monitoring is
diabled.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-838'>MAPREDUCE-838</a>]
-         Task succeeds even when committer.commitTask fails with IOException
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-911'>MAPREDUCE-911</a>]
-         TestTaskFail fail sometimes
+</li>
+</ul>
+    
+<h2>        Improvement
+</h2>
+<ul>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-465'>MAPREDUCE-465</a>]
-         Deprecate org.apache.hadoop.mapred.lib.MultithreadedMapRunner
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-487'>MAPREDUCE-487</a>]
-         DBInputFormat support for Oracle
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/MAPREDUCE-767'>MAPREDUCE-767</a>]
-         to remove mapreduce dependency on commons-cli2
+</li>
+</ul>
+
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