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                       <h5>YARN</h5>
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                       <h5>YARN REST APIs</h5>
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                       <h5>YARN Service</h5>
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                       <h5>Hadoop Compatible File Systems</h5>
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                       <h5>Auth</h5>
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<h1>Apache Hadoop Changelog</h1><section>
<h2><a name="Release_0.23.5_-_2012-11-29"></a>Release 0.23.5 - 2012-11-29</h2><section>
<h3><a name="INCOMPATIBLE_CHANGES:"></a>INCOMPATIBLE CHANGES:</h3>
<table border="0" class="bodyTable">
<thead>

<tr class="a">
<th align="left"> JIRA </th>
<th align="left"> Summary </th>
<th align="left"> Priority </th>
<th align="left"> Component </th>
<th align="left"> Reporter </th>
<th align="left"> Contributor </th></tr>
</thead><tbody>

<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-4080">HDFS-4080</a> </td>
<td align="left"> Add a separate logger for block state change logs to enable turning off those logs </td>
<td align="left">  Major </td>
<td align="left"> namenode </td>
<td align="left"> Kihwal Lee </td>
<td align="left"> Kihwal Lee </td></tr>
</tbody>
</table></section><section>
<h3><a name="IMPROVEMENTS:"></a>IMPROVEMENTS:</h3>
<table border="0" class="bodyTable">
<thead>

<tr class="a">
<th align="left"> JIRA </th>
<th align="left"> Summary </th>
<th align="left"> Priority </th>
<th align="left"> Component </th>
<th align="left"> Reporter </th>
<th align="left"> Contributor </th></tr>
</thead><tbody>

<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-8789">HADOOP-8789</a> </td>
<td align="left"> Tests setLevel(Level.OFF) should be Level.ERROR </td>
<td align="left">  Minor </td>
<td align="left"> test </td>
<td align="left"> Andy Isaacson </td>
<td align="left"> Andy Isaacson </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-8755">HADOOP-8755</a> </td>
<td align="left"> Print thread dump when tests fail due to timeout </td>
<td align="left">  Major </td>
<td align="left"> test </td>
<td align="left"> Andrey Klochkov </td>
<td align="left"> Andrey Klochkov </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-8851">HADOOP-8851</a> </td>
<td align="left"> Use -XX:+HeapDumpOnOutOfMemoryError JVM option in the forked tests </td>
<td align="left">  Minor </td>
<td align="left"> test </td>
<td align="left"> Ivan A. Veselovsky </td>
<td align="left"> Ivan A. Veselovsky </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-3483">HDFS-3483</a> </td>
<td align="left"> Better error message when hdfs fsck is run against a ViewFS config </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Stephen Chu </td>
<td align="left"> Stephen Fritz </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-8889">HADOOP-8889</a> </td>
<td align="left"> Upgrade to Surefire 2.12.3 </td>
<td align="left">  Major </td>
<td align="left"> build, test </td>
<td align="left"> Todd Lipcon </td>
<td align="left"> Todd Lipcon </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-8932">HADOOP-8932</a> </td>
<td align="left"> JNI-based user-group mapping modules can be too chatty on lookup failures </td>
<td align="left">  Major </td>
<td align="left"> security </td>
<td align="left"> Kihwal Lee </td>
<td align="left"> Kihwal Lee </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-8926">HADOOP-8926</a> </td>
<td align="left"> hadoop.util.PureJavaCrc32 cache hit-ratio is low for static data </td>
<td align="left">  Major </td>
<td align="left"> util </td>
<td align="left"> Gopal V </td>
<td align="left"> Gopal V </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-8930">HADOOP-8930</a> </td>
<td align="left"> Cumulative code coverage calculation </td>
<td align="left">  Major </td>
<td align="left"> test </td>
<td align="left"> Andrey Klochkov </td>
<td align="left"> Andrey Klochkov </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4229">MAPREDUCE-4229</a> </td>
<td align="left"> Counter names&#x2019; memory usage can be decreased by interning </td>
<td align="left">  Major </td>
<td align="left"> jobtracker </td>
<td align="left"> Todd Lipcon </td>
<td align="left"> Miomir Boljanovic </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4752">MAPREDUCE-4752</a> </td>
<td align="left"> Reduce MR AM memory usage through String Interning </td>
<td align="left">  Major </td>
<td align="left"> mrv2 </td>
<td align="left"> Robert Joseph Evans </td>
<td align="left"> Robert Joseph Evans </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-165">YARN-165</a> </td>
<td align="left"> RM should point tracking URL to RM web page for app when AM fails </td>
<td align="left">  Blocker </td>
<td align="left"> resourcemanager </td>
<td align="left"> Jason Lowe </td>
<td align="left"> Jason Lowe </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4763">MAPREDUCE-4763</a> </td>
<td align="left"> repair test org.apache.hadoop.mapreduce.security.TestUmbilicalProtocolWithJobToken </td>
<td align="left">  Minor </td>
<td align="left"> . </td>
<td align="left"> Ivan A. Veselovsky </td>
<td align="left">  </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4666">MAPREDUCE-4666</a> </td>
<td align="left"> JVM metrics for history server </td>
<td align="left">  Minor </td>
<td align="left"> jobhistoryserver </td>
<td align="left"> Jason Lowe </td>
<td align="left"> Jason Lowe </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4517">MAPREDUCE-4517</a> </td>
<td align="left"> Too many INFO messages written out during AM to RM heartbeat </td>
<td align="left">  Minor </td>
<td align="left"> applicationmaster </td>
<td align="left"> James Kinley </td>
<td align="left"> Jason Lowe </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-216">YARN-216</a> </td>
<td align="left"> Remove jquery theming support </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Todd Lipcon </td>
<td align="left"> Robert Joseph Evans </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4802">MAPREDUCE-4802</a> </td>
<td align="left"> Takes a long time to load the task list on the AM for large jobs </td>
<td align="left">  Major </td>
<td align="left"> mr-am, mrv2, webapps </td>
<td align="left"> Ravi Prakash </td>
<td align="left"> Ravi Prakash </td></tr>
</tbody>
</table></section><section>
<h3><a name="BUG_FIXES:"></a>BUG FIXES:</h3>
<table border="0" class="bodyTable">
<thead>

<tr class="a">
<th align="left"> JIRA </th>
<th align="left"> Summary </th>
<th align="left"> Priority </th>
<th align="left"> Component </th>
<th align="left"> Reporter </th>
<th align="left"> Contributor </th></tr>
</thead><tbody>

<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-8775">HADOOP-8775</a> </td>
<td align="left"> MR2 distcp permits non-positive value to -bandwidth option which causes job never to complete </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Sandy Ryza </td>
<td align="left"> Sandy Ryza </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-3919">HDFS-3919</a> </td>
<td align="left"> MiniDFSCluster:waitClusterUp can hang forever </td>
<td align="left">  Minor </td>
<td align="left"> test </td>
<td align="left"> Andy Isaacson </td>
<td align="left"> Andy Isaacson </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-8819">HADOOP-8819</a> </td>
<td align="left"> Should use &amp;&amp; instead of  &amp; in a few places in FTPFileSystem,FTPInputStream,S3InputStream,ViewFileSystem,ViewFs </td>
<td align="left">  Major </td>
<td align="left"> fs </td>
<td align="left"> Brandon Li </td>
<td align="left"> Brandon Li </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-28">YARN-28</a> </td>
<td align="left"> TestCompositeService fails on jdk7 </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Thomas Graves </td>
<td align="left"> Thomas Graves </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4674">MAPREDUCE-4674</a> </td>
<td align="left"> Hadoop examples secondarysort has a typo &#x201c;secondarysrot&#x201d; in the usage </td>
<td align="left">  Minor </td>
<td align="left"> . </td>
<td align="left"> Robert Justice </td>
<td align="left"> Robert Justice </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-8791">HADOOP-8791</a> </td>
<td align="left"> rm &#x201c;Only deletes non empty directory and files.&#x201d; </td>
<td align="left">  Major </td>
<td align="left"> documentation </td>
<td align="left"> Bertrand Dechoux </td>
<td align="left"> Jing Zhao </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-8386">HADOOP-8386</a> </td>
<td align="left"> hadoop script doesn&#x2019;t work if &#x2018;cd&#x2019; prints to stdout (default behavior in Ubuntu) </td>
<td align="left">  Major </td>
<td align="left"> scripts </td>
<td align="left"> Christopher Berner </td>
<td align="left"> Christopher Berner </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-116">YARN-116</a> </td>
<td align="left"> RM is missing ability to add include/exclude files without a restart </td>
<td align="left">  Major </td>
<td align="left"> resourcemanager </td>
<td align="left"> xieguiming </td>
<td align="left"> xieguiming </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-131">YARN-131</a> </td>
<td align="left"> Incorrect ACL properties in capacity scheduler documentation </td>
<td align="left">  Major </td>
<td align="left"> capacityscheduler </td>
<td align="left"> Ahmed Radwan </td>
<td align="left"> Ahmed Radwan </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-3905">HDFS-3905</a> </td>
<td align="left"> Secure cluster cannot use hftp to an insecure cluster </td>
<td align="left">  Critical </td>
<td align="left"> hdfs-client, security </td>
<td align="left"> Daryn Sharp </td>
<td align="left"> Daryn Sharp </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-102">YARN-102</a> </td>
<td align="left"> Move the apache licence header to the top of the file in MemStore.java </td>
<td align="left">  Trivial </td>
<td align="left"> resourcemanager </td>
<td align="left"> Devaraj K </td>
<td align="left"> Devaraj K </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-3996">HDFS-3996</a> </td>
<td align="left"> Add debug log removed in HDFS-3873 back </td>
<td align="left">  Minor </td>
<td align="left"> . </td>
<td align="left"> Eli Collins </td>
<td align="left"> Eli Collins </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-3829">HDFS-3829</a> </td>
<td align="left"> TestHftpURLTimeouts fails intermittently with JDK7 </td>
<td align="left">  Major </td>
<td align="left"> test </td>
<td align="left"> Trevor Robinson </td>
<td align="left"> Trevor Robinson </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4554">MAPREDUCE-4554</a> </td>
<td align="left"> Job Credentials are not transmitted if security is turned off </td>
<td align="left">  Major </td>
<td align="left"> job submission, security </td>
<td align="left"> Benoy Antony </td>
<td align="left"> Benoy Antony </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4705">MAPREDUCE-4705</a> </td>
<td align="left"> Historyserver links expire before the history data does </td>
<td align="left">  Critical </td>
<td align="left"> jobhistoryserver, mrv2 </td>
<td align="left"> Jason Lowe </td>
<td align="left"> Jason Lowe </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-30">YARN-30</a> </td>
<td align="left"> TestNMWebServicesApps, TestRMWebServicesApps and TestRMWebServicesNodes fail on jdk7 </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Thomas Graves </td>
<td align="left"> Thomas Graves </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-3824">HDFS-3824</a> </td>
<td align="left"> TestHftpDelegationToken fails intermittently with JDK7 </td>
<td align="left">  Major </td>
<td align="left"> test </td>
<td align="left"> Trevor Robinson </td>
<td align="left"> Trevor Robinson </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-3224">HDFS-3224</a> </td>
<td align="left"> Bug in check for DN re-registration with different storage ID </td>
<td align="left">  Minor </td>
<td align="left"> . </td>
<td align="left"> Eli Collins </td>
<td align="left"> Jason Lowe </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-8906">HADOOP-8906</a> </td>
<td align="left"> paths with multiple globs are unreliable </td>
<td align="left">  Critical </td>
<td align="left"> fs </td>
<td align="left"> Daryn Sharp </td>
<td align="left"> Daryn Sharp </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-4016">HDFS-4016</a> </td>
<td align="left"> back-port HDFS-3582 to branch-0.23 </td>
<td align="left">  Minor </td>
<td align="left"> . </td>
<td align="left"> Ivan A. Veselovsky </td>
<td align="left"> Ivan A. Veselovsky </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4521">MAPREDUCE-4521</a> </td>
<td align="left"> mapreduce.user.classpath.first incompatibility with 0.20/1.x </td>
<td align="left">  Major </td>
<td align="left"> mrv2 </td>
<td align="left"> Jason Lowe </td>
<td align="left"> Ravi Prakash </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-161">YARN-161</a> </td>
<td align="left"> Yarn Common has multiple compiler warnings for unchecked operations </td>
<td align="left">  Major </td>
<td align="left"> api </td>
<td align="left"> Chris Nauroth </td>
<td align="left"> Chris Nauroth </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-43">YARN-43</a> </td>
<td align="left"> TestResourceTrackerService fail intermittently on jdk7 </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Thomas Graves </td>
<td align="left"> Thomas Graves </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4721">MAPREDUCE-4721</a> </td>
<td align="left"> Task startup time in JHS is same as job startup time. </td>
<td align="left">  Major </td>
<td align="left"> jobhistoryserver </td>
<td align="left"> Ravi Prakash </td>
<td align="left"> Ravi Prakash </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-32">YARN-32</a> </td>
<td align="left"> TestApplicationTokens fails intermintently on jdk7 </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Thomas Graves </td>
<td align="left"> Vinod Kumar Vavilapalli </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-163">YARN-163</a> </td>
<td align="left"> Retrieving container log via NM webapp can hang with multibyte characters in log </td>
<td align="left">  Major </td>
<td align="left"> nodemanager </td>
<td align="left"> Jason Lowe </td>
<td align="left"> Jason Lowe </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4479">MAPREDUCE-4479</a> </td>
<td align="left"> Fix parameter order in assertEquals() in TestCombineInputFileFormat.java </td>
<td align="left">  Major </td>
<td align="left"> test </td>
<td align="left"> Mariappan Asokan </td>
<td align="left"> Mariappan Asokan </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4733">MAPREDUCE-4733</a> </td>
<td align="left"> Reducer can fail to make progress during shuffle if too many reducers complete consecutively </td>
<td align="left">  Major </td>
<td align="left"> applicationmaster, mrv2 </td>
<td align="left"> Jason Lowe </td>
<td align="left"> Jason Lowe </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4740">MAPREDUCE-4740</a> </td>
<td align="left"> only .jars can be added to the Distributed Cache classpath </td>
<td align="left">  Blocker </td>
<td align="left"> mrv2 </td>
<td align="left"> Robert Joseph Evans </td>
<td align="left"> Robert Joseph Evans </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-174">YARN-174</a> </td>
<td align="left"> TestNodeStatusUpdater is failing in trunk </td>
<td align="left">  Major </td>
<td align="left"> nodemanager </td>
<td align="left"> Robert Joseph Evans </td>
<td align="left"> Vinod Kumar Vavilapalli </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-4090">HDFS-4090</a> </td>
<td align="left"> getFileChecksum() result incompatible when called against zero-byte files. </td>
<td align="left">  Critical </td>
<td align="left"> hdfs-client </td>
<td align="left"> Kihwal Lee </td>
<td align="left"> Kihwal Lee </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-8962">HADOOP-8962</a> </td>
<td align="left"> RawLocalFileSystem.listStatus fails when a child filename contains a colon </td>
<td align="left">  Critical </td>
<td align="left"> fs </td>
<td align="left"> Jason Lowe </td>
<td align="left"> Jason Lowe </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-177">YARN-177</a> </td>
<td align="left"> CapacityScheduler - adding a queue while the RM is running has wacky results </td>
<td align="left">  Critical </td>
<td align="left"> capacityscheduler </td>
<td align="left"> Thomas Graves </td>
<td align="left"> Arun C Murthy </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-178">YARN-178</a> </td>
<td align="left"> Fix custom ProcessTree instance creation </td>
<td align="left">  Critical </td>
<td align="left"> . </td>
<td align="left"> Radim Kolar </td>
<td align="left"> Radim Kolar </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-180">YARN-180</a> </td>
<td align="left"> Capacity scheduler - containers that get reserved create container token to early </td>
<td align="left">  Critical </td>
<td align="left"> capacityscheduler </td>
<td align="left"> Thomas Graves </td>
<td align="left"> Arun C Murthy </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-139">YARN-139</a> </td>
<td align="left"> Interrupted Exception within AsyncDispatcher leads to user confusion </td>
<td align="left">  Major </td>
<td align="left"> api </td>
<td align="left"> Nathan Roberts </td>
<td align="left"> Vinod Kumar Vavilapalli </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4741">MAPREDUCE-4741</a> </td>
<td align="left"> WARN and ERROR messages logged during normal AM shutdown </td>
<td align="left">  Minor </td>
<td align="left"> applicationmaster, mrv2 </td>
<td align="left"> Jason Lowe </td>
<td align="left"> Vinod Kumar Vavilapalli </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4730">MAPREDUCE-4730</a> </td>
<td align="left"> AM crashes due to OOM while serving up map task completion events </td>
<td align="left">  Blocker </td>
<td align="left"> applicationmaster, mrv2 </td>
<td align="left"> Jason Lowe </td>
<td align="left"> Jason Lowe </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4748">MAPREDUCE-4748</a> </td>
<td align="left"> Invalid event: T_ATTEMPT_SUCCEEDED at SUCCEEDED </td>
<td align="left">  Blocker </td>
<td align="left"> mrv2 </td>
<td align="left"> Robert Joseph Evans </td>
<td align="left"> Jason Lowe </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-1806">MAPREDUCE-1806</a> </td>
<td align="left"> CombineFileInputFormat does not work with paths not on default FS </td>
<td align="left">  Major </td>
<td align="left"> harchive </td>
<td align="left"> Paul Yang </td>
<td align="left"> Gera Shegalov </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-8986">HADOOP-8986</a> </td>
<td align="left"> Server$Call object is never released after it is sent </td>
<td align="left">  Critical </td>
<td align="left"> ipc </td>
<td align="left"> Robert Joseph Evans </td>
<td align="left"> Robert Joseph Evans </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-159">YARN-159</a> </td>
<td align="left"> RM web ui applications page should be sorted to display last app first </td>
<td align="left">  Major </td>
<td align="left"> resourcemanager </td>
<td align="left"> Thomas Graves </td>
<td align="left"> Thomas Graves </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-166">YARN-166</a> </td>
<td align="left"> capacity scheduler doesn&#x2019;t allow capacity &lt; 1.0 </td>
<td align="left">  Major </td>
<td align="left"> capacityscheduler </td>
<td align="left"> Thomas Graves </td>
<td align="left"> Thomas Graves </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4724">MAPREDUCE-4724</a> </td>
<td align="left"> job history web ui applications page should be sorted to display last app first </td>
<td align="left">  Major </td>
<td align="left"> jobhistoryserver </td>
<td align="left"> Thomas Graves </td>
<td align="left"> Thomas Graves </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-189">YARN-189</a> </td>
<td align="left"> deadlock in RM - AMResponse object </td>
<td align="left">  Blocker </td>
<td align="left"> resourcemanager </td>
<td align="left"> Thomas Graves </td>
<td align="left"> Thomas Graves </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4746">MAPREDUCE-4746</a> </td>
<td align="left"> The MR Application Master does not have a config to set environment variables </td>
<td align="left">  Major </td>
<td align="left"> applicationmaster </td>
<td align="left"> Robert Parker </td>
<td align="left"> Robert Parker </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4729">MAPREDUCE-4729</a> </td>
<td align="left"> job history UI not showing all job attempts </td>
<td align="left">  Major </td>
<td align="left"> jobhistoryserver </td>
<td align="left"> Thomas Graves </td>
<td align="left"> Vinod Kumar Vavilapalli </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4771">MAPREDUCE-4771</a> </td>
<td align="left"> KeyFieldBasedPartitioner not partitioning properly when configured </td>
<td align="left">  Major </td>
<td align="left"> mrv2 </td>
<td align="left"> Jason Lowe </td>
<td align="left"> Jason Lowe </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-4075">HDFS-4075</a> </td>
<td align="left"> Reduce recommissioning overhead </td>
<td align="left">  Critical </td>
<td align="left"> namenode </td>
<td align="left"> Kihwal Lee </td>
<td align="left"> Kihwal Lee </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-201">YARN-201</a> </td>
<td align="left"> CapacityScheduler can take a very long time to schedule containers if requests are off cluster </td>
<td align="left">  Critical </td>
<td align="left"> capacityscheduler </td>
<td align="left"> Jason Lowe </td>
<td align="left"> Jason Lowe </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4772">MAPREDUCE-4772</a> </td>
<td align="left"> Fetch failures can take way too long for a map to be restarted </td>
<td align="left">  Critical </td>
<td align="left"> mrv2 </td>
<td align="left"> Robert Joseph Evans </td>
<td align="left"> Robert Joseph Evans </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-3990">HDFS-3990</a> </td>
<td align="left"> NN&#x2019;s health report has severe performance problems </td>
<td align="left">  Critical </td>
<td align="left"> namenode </td>
<td align="left"> Daryn Sharp </td>
<td align="left"> Daryn Sharp </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4782">MAPREDUCE-4782</a> </td>
<td align="left"> NLineInputFormat skips first line of last InputSplit </td>
<td align="left">  Blocker </td>
<td align="left"> client </td>
<td align="left"> Mark Fuhs </td>
<td align="left"> Mark Fuhs </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-4162">HDFS-4162</a> </td>
<td align="left"> Some malformed and unquoted HTML strings are returned from datanode web ui </td>
<td align="left">  Minor </td>
<td align="left"> datanode </td>
<td align="left"> Derek Dagit </td>
<td align="left"> Derek Dagit </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4774">MAPREDUCE-4774</a> </td>
<td align="left"> JobImpl does not handle asynchronous task events in FAILED state </td>
<td align="left">  Major </td>
<td align="left"> applicationmaster, mrv2 </td>
<td align="left"> Ivan A. Veselovsky </td>
<td align="left"> Jason Lowe </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-206">YARN-206</a> </td>
<td align="left"> TestApplicationCleanup.testContainerCleanup occasionally fails </td>
<td align="left">  Major </td>
<td align="left"> resourcemanager </td>
<td align="left"> Jason Lowe </td>
<td align="left"> Jason Lowe </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4751">MAPREDUCE-4751</a> </td>
<td align="left"> AM stuck in KILL_WAIT for days </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Ravi Prakash </td>
<td align="left"> Vinod Kumar Vavilapalli </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4787">MAPREDUCE-4787</a> </td>
<td align="left"> TestJobMonitorAndPrint is broken </td>
<td align="left">  Major </td>
<td align="left"> test </td>
<td align="left"> Ravi Prakash </td>
<td align="left"> Robert Parker </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-4172">HDFS-4172</a> </td>
<td align="left"> namenode does not URI-encode parameters when building URI for datanode request </td>
<td align="left">  Minor </td>
<td align="left"> namenode </td>
<td align="left"> Derek Dagit </td>
<td align="left"> Derek Dagit </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4425">MAPREDUCE-4425</a> </td>
<td align="left"> Speculation + Fetch failures can lead to a hung job </td>
<td align="left">  Critical </td>
<td align="left"> mrv2 </td>
<td align="left"> Siddharth Seth </td>
<td align="left"> Jason Lowe </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4786">MAPREDUCE-4786</a> </td>
<td align="left"> Job End Notification retry interval is 5 milliseconds by default </td>
<td align="left">  Major </td>
<td align="left"> mrv2 </td>
<td align="left"> Ravi Prakash </td>
<td align="left"> Ravi Prakash </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-9022">HADOOP-9022</a> </td>
<td align="left"> Hadoop distcp tool fails to copy file if -m 0 specified </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Haiyang Jiang </td>
<td align="left"> Jonathan Eagles </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-9025">HADOOP-9025</a> </td>
<td align="left"> org.apache.hadoop.tools.TestCopyListing failing </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Robert Joseph Evans </td>
<td align="left"> Jonathan Eagles </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-4181">HDFS-4181</a> </td>
<td align="left"> LeaseManager tries to double remove and prints extra messages </td>
<td align="left">  Critical </td>
<td align="left"> namenode </td>
<td align="left"> Kihwal Lee </td>
<td align="left"> Kihwal Lee </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-212">YARN-212</a> </td>
<td align="left"> NM state machine ignores an APPLICATION_CONTAINER_FINISHED event when it shouldn&#x2019;t </td>
<td align="left">  Blocker </td>
<td align="left"> nodemanager </td>
<td align="left"> Nathan Roberts </td>
<td align="left"> Nathan Roberts </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-144">YARN-144</a> </td>
<td align="left"> MiniMRYarnCluster launches RM and JHS on default ports </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Robert Parker </td>
<td align="left"> Robert Parker </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-4182">HDFS-4182</a> </td>
<td align="left"> SecondaryNameNode leaks NameCache entries </td>
<td align="left">  Critical </td>
<td align="left"> namenode </td>
<td align="left"> Todd Lipcon </td>
<td align="left"> Robert Joseph Evans </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4797">MAPREDUCE-4797</a> </td>
<td align="left"> LocalContainerAllocator can loop forever trying to contact the RM </td>
<td align="left">  Major </td>
<td align="left"> applicationmaster </td>
<td align="left"> Jason Lowe </td>
<td align="left"> Jason Lowe </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4720">MAPREDUCE-4720</a> </td>
<td align="left"> Browser thinks History Server main page JS is taking too long </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Robert Joseph Evans </td>
<td align="left"> Ravi Prakash </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-4186">HDFS-4186</a> </td>
<td align="left"> logSync() is called with the write lock held while releasing lease </td>
<td align="left">  Critical </td>
<td align="left"> namenode </td>
<td align="left"> Kihwal Lee </td>
<td align="left"> Kihwal Lee </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4801">MAPREDUCE-4801</a> </td>
<td align="left"> ShuffleHandler can generate large logs due to prematurely closed channels </td>
<td align="left">  Critical </td>
<td align="left"> . </td>
<td align="left"> Jason Lowe </td>
<td align="left"> Jason Lowe </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-214">YARN-214</a> </td>
<td align="left"> RMContainerImpl does not handle event EXPIRE at state RUNNING </td>
<td align="left">  Major </td>
<td align="left"> resourcemanager </td>
<td align="left"> Jason Lowe </td>
<td align="left"> Jonathan Eagles </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-151">YARN-151</a> </td>
<td align="left"> Browser thinks RM main page JS is taking too long </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Robert Joseph Evans </td>
<td align="left"> Ravi Prakash </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4549">MAPREDUCE-4549</a> </td>
<td align="left"> Distributed cache conflicts breaks backwards compatability </td>
<td align="left">  Blocker </td>
<td align="left"> mrv2 </td>
<td align="left"> Robert Joseph Evans </td>
<td align="left"> Robert Joseph Evans </td></tr>
</tbody>
</table></section><section>
<h3><a name="SUB-TASKS:"></a>SUB-TASKS:</h3>
<table border="0" class="bodyTable">
<thead>

<tr class="a">
<th align="left"> JIRA </th>
<th align="left"> Summary </th>
<th align="left"> Priority </th>
<th align="left"> Component </th>
<th align="left"> Reporter </th>
<th align="left"> Contributor </th></tr>
</thead><tbody>

<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4107">MAPREDUCE-4107</a> </td>
<td align="left"> Fix tests in org.apache.hadoop.ipc.TestSocketFactory </td>
<td align="left">  Major </td>
<td align="left"> mrv2 </td>
<td align="left"> Devaraj K </td>
<td align="left"> Devaraj K </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-202">YARN-202</a> </td>
<td align="left"> Log Aggregation generates a storm of fsync() for namenode </td>
<td align="left">  Critical </td>
<td align="left"> . </td>
<td align="left"> Kihwal Lee </td>
<td align="left"> Kihwal Lee </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-186">YARN-186</a> </td>
<td align="left"> Coverage fixing LinuxContainerExecutor </td>
<td align="left">  Major </td>
<td align="left"> resourcemanager, scheduler </td>
<td align="left"> Aleksey Gorshkov </td>
<td align="left"> Aleksey Gorshkov </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-188">YARN-188</a> </td>
<td align="left"> Coverage fixing for CapacityScheduler </td>
<td align="left">  Major </td>
<td align="left"> capacityscheduler </td>
<td align="left"> Aleksey Gorshkov </td>
<td align="left"> Aleksey Gorshkov </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-219">YARN-219</a> </td>
<td align="left"> NM should aggregate logs when application finishes. </td>
<td align="left">  Critical </td>
<td align="left"> nodemanager </td>
<td align="left"> Robert Joseph Evans </td>
<td align="left"> Robert Joseph Evans </td></tr>
</tbody>
</table></section><section>
<h3><a name="OTHER:"></a>OTHER:</h3>
<table border="0" class="bodyTable">
<thead>

<tr class="a">
<th align="left"> JIRA </th>
<th align="left"> Summary </th>
<th align="left"> Priority </th>
<th align="left"> Component </th>
<th align="left"> Reporter </th>
<th align="left"> Contributor </th></tr>
</thead><tbody>

<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4596">MAPREDUCE-4596</a> </td>
<td align="left"> Split StateMachine state from states seen by MRClientProtocol (for Job, Task, TaskAttempt) </td>
<td align="left">  Major </td>
<td align="left"> applicationmaster, mrv2 </td>
<td align="left"> Siddharth Seth </td>
<td align="left"> Siddharth Seth </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/YARN-154">YARN-154</a> </td>
<td align="left"> Create Yarn trunk and commit jobs </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Eli Collins </td>
<td align="left"> Robert Joseph Evans </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-4266">MAPREDUCE-4266</a> </td>
<td align="left"> remove Ant remnants from MR </td>
<td align="left">  Major </td>
<td align="left"> build </td>
<td align="left"> Alejandro Abdelnur </td>
<td align="left"> Alejandro Abdelnur </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-8860">HADOOP-8860</a> </td>
<td align="left"> Split MapReduce and YARN sections in documentation navigation </td>
<td align="left">  Major </td>
<td align="left"> documentation </td>
<td align="left"> Tom White </td>
<td align="left"> Tom White </td></tr>
</tbody>
</table></section></section>
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