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                                                   <h5>General</h5>
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                       <h5>HDFS</h5>
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                       <h5>MapReduce</h5>
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                       <h5>MapReduce REST APIs</h5>
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                       <h5>YARN</h5>
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                  <a href="../../../../hadoop-yarn/hadoop-yarn-site/YARN.html">Architecture</a>
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                       <h5>YARN REST APIs</h5>
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                  <a href="../../../../hadoop-yarn/hadoop-yarn-site/WebServicesIntro.html">Introduction</a>
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<h1>Apache Hadoop Changelog</h1><section>
<h2><a name="Release_0.16.0_-_2008-02-07"></a>Release 0.16.0 - 2008-02-07</h2><section>
<h3><a name="NEW_FEATURES:"></a>NEW FEATURES:</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-2045">HADOOP-2045</a> </td>
<td align="left"> credits page should have more information </td>
<td align="left">  Major </td>
<td align="left"> documentation </td>
<td align="left"> Doug Cutting </td>
<td align="left"> Doug Cutting </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1604">HADOOP-1604</a> </td>
<td align="left"> admins should be able to finalize namenode upgrades without running the cluster </td>
<td align="left">  Critical </td>
<td align="left"> . </td>
<td align="left"> Owen O&#x2019;Malley </td>
<td align="left"> Konstantin Shvachko </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1912">HADOOP-1912</a> </td>
<td align="left"> Datanode should support block replacement </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Hairong Kuang </td>
<td align="left"> Hairong Kuang </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2288">HADOOP-2288</a> </td>
<td align="left"> Change FileSystem API to support access control. </td>
<td align="left">  Major </td>
<td align="left"> fs </td>
<td align="left"> Tsz Wo Nicholas Sze </td>
<td align="left"> Tsz Wo Nicholas Sze </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2229">HADOOP-2229</a> </td>
<td align="left"> Provide a simple login implementation </td>
<td align="left">  Major </td>
<td align="left"> fs </td>
<td align="left"> Tsz Wo Nicholas Sze </td>
<td align="left"> Hairong Kuang </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2184">HADOOP-2184</a> </td>
<td align="left"> RPC Support for user permissions and authentication. </td>
<td align="left">  Major </td>
<td align="left"> ipc </td>
<td align="left"> Tsz Wo Nicholas Sze </td>
<td align="left"> Raghu Angadi </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1652">HADOOP-1652</a> </td>
<td align="left"> Rebalance data blocks when new data nodes added or data nodes become full </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Hairong Kuang </td>
<td align="left"> Hairong Kuang </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2145">HADOOP-2145</a> </td>
<td align="left"> need &#x2018;doc&#x2019; target that runs forrest </td>
<td align="left">  Major </td>
<td align="left"> build </td>
<td align="left"> Doug Cutting </td>
<td align="left"> Doug Cutting </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2085">HADOOP-2085</a> </td>
<td align="left"> Map-side joins on sorted, equally-partitioned datasets </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Chris Douglas </td>
<td align="left"> Chris Douglas </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2381">HADOOP-2381</a> </td>
<td align="left"> Support permission information in FileStatus </td>
<td align="left">  Major </td>
<td align="left"> fs </td>
<td align="left"> Tsz Wo Nicholas Sze </td>
<td align="left"> Raghu Angadi </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2336">HADOOP-2336</a> </td>
<td align="left"> Shell commands to access and modify file permissions </td>
<td align="left">  Major </td>
<td align="left"> fs </td>
<td align="left"> Raghu Angadi </td>
<td align="left"> Raghu Angadi </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1301">HADOOP-1301</a> </td>
<td align="left"> resource management proviosioning for Hadoop </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Pete Wyckoff </td>
<td align="left"> Hemanth Yamijala </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1298">HADOOP-1298</a> </td>
<td align="left"> adding user info to file </td>
<td align="left">  Major </td>
<td align="left"> fs </td>
<td align="left"> Kurtis Heimerl </td>
<td align="left"> Tsz Wo Nicholas Sze </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2447">HADOOP-2447</a> </td>
<td align="left"> HDFS should be capable of limiting the total number of inodes in the system </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Sameer Paranjpye </td>
<td align="left"> dhruba borthakur </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2487">HADOOP-2487</a> </td>
<td align="left"> Provide an option to get job status for all jobs run by or submitted to a job tracker </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Hemanth Yamijala </td>
<td align="left"> Amareshwari Sriramadasu </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2398">HADOOP-2398</a> </td>
<td align="left"> Additional Instrumentation for NameNode, RPC Layer and JMX support </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Sanjay Radia </td>
<td align="left"> Sanjay Radia </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2514">HADOOP-2514</a> </td>
<td align="left"> Trash and permissions don&#x2019;t mix </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Robert Chansler </td>
<td align="left"> Doug Cutting </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2012">HADOOP-2012</a> </td>
<td align="left"> Periodic verification at the Datanode </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Raghu Angadi </td>
<td align="left"> Raghu Angadi </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2543">HADOOP-2543</a> </td>
<td align="left"> No-permission-checking mode for smooth transition to 0.16&#x2019;s permissions features. </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Sanjay Radia </td>
<td align="left"> Hairong Kuang </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2603">HADOOP-2603</a> </td>
<td align="left"> SequenceFileAsBinaryInputFormat </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Chris Douglas </td>
<td align="left"> Chris Douglas </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2367">HADOOP-2367</a> </td>
<td align="left"> Get representative hprof information from tasks </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Owen O&#x2019;Malley </td>
<td align="left"> Owen O&#x2019;Malley </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2567">HADOOP-2567</a> </td>
<td align="left"> add FileSystem#getHomeDirectory() method </td>
<td align="left">  Major </td>
<td align="left"> fs </td>
<td align="left"> Doug Cutting </td>
<td align="left"> Doug Cutting </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2529">HADOOP-2529</a> </td>
<td align="left"> DFS User Guide </td>
<td align="left">  Major </td>
<td align="left"> documentation </td>
<td align="left"> Raghu Angadi </td>
<td align="left"> Raghu Angadi </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-2058">HADOOP-2058</a> </td>
<td align="left"> Allow adding additional datanodes to MiniDFSCluster </td>
<td align="left">  Major </td>
<td align="left"> test </td>
<td align="left"> Hairong Kuang </td>
<td align="left"> Hairong Kuang </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1855">HADOOP-1855</a> </td>
<td align="left"> fsck should verify block placement </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> dhruba borthakur </td>
<td align="left"> Konstantin Shvachko </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1839">HADOOP-1839</a> </td>
<td align="left"> Link-ify the Pending/Running/Complete/Killed tasks/task-attempts on jobdetails.jsp </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Arun C Murthy </td>
<td align="left"> Amar Kamat </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1848">HADOOP-1848</a> </td>
<td align="left"> Redesign of Eclipse plug-in interface with Hadoop </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Christophe Taton </td>
<td align="left"> Christophe Taton </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1857">HADOOP-1857</a> </td>
<td align="left"> Ability to run a script when a task fails to capture stack traces </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Amareshwari Sriramadasu </td>
<td align="left"> Amareshwari Sriramadasu </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1210">HADOOP-1210</a> </td>
<td align="left"> Log counters in job history </td>
<td align="left">  Minor </td>
<td align="left"> . </td>
<td align="left"> Albert Chern </td>
<td align="left"> Owen O&#x2019;Malley </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2105">HADOOP-2105</a> </td>
<td align="left"> Clarify requirements for Hadoop in overview.html </td>
<td align="left">  Minor </td>
<td align="left"> . </td>
<td align="left"> Jim Kellerman </td>
<td align="left"> Jim Kellerman </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2086">HADOOP-2086</a> </td>
<td align="left"> ability to add dependencies to a job after construction </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Adrian Woodhead </td>
<td align="left"> Adrian Woodhead </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1185">HADOOP-1185</a> </td>
<td align="left"> dynamically change log levels </td>
<td align="left">  Major </td>
<td align="left"> util </td>
<td align="left"> dhruba borthakur </td>
<td align="left"> Tsz Wo Nicholas Sze </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2134">HADOOP-2134</a> </td>
<td align="left"> Remove developer-centric requirements from overview.html </td>
<td align="left">  Major </td>
<td align="left"> documentation </td>
<td align="left"> Arun C Murthy </td>
<td align="left"> Jim Kellerman </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1274">HADOOP-1274</a> </td>
<td align="left"> Configuring different number of mappers and reducers per TaskTracker </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Koji Noguchi </td>
<td align="left"> Amareshwari Sriramadasu </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2127">HADOOP-2127</a> </td>
<td align="left"> Add pipes sort example </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Owen O&#x2019;Malley </td>
<td align="left"> Owen O&#x2019;Malley </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1843">HADOOP-1843</a> </td>
<td align="left"> Remove deprecated code in Configuration/JobConf </td>
<td align="left">  Major </td>
<td align="left"> conf </td>
<td align="left"> Arun C Murthy </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/HADOOP-2113">HADOOP-2113</a> </td>
<td align="left"> Add &#x201c;-text&#x201d; command to FsShell to decode SequenceFile to stdout </td>
<td align="left">  Minor </td>
<td align="left"> fs </td>
<td align="left"> Chris Douglas </td>
<td align="left"> Chris Douglas </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1900">HADOOP-1900</a> </td>
<td align="left"> the heartbeat and task event queries interval should be set dynamically by the JobTracker </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Owen O&#x2019;Malley </td>
<td align="left"> Amareshwari Sriramadasu </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1302">HADOOP-1302</a> </td>
<td align="left"> Remove deprecated contrib/abacus code </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Doug Cutting </td>
<td align="left"> Enis Soztutar </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2349">HADOOP-2349</a> </td>
<td align="left"> FSEditLog.logEdit(byte op, Writable w1, Writable w2) should accept variable numbers of Writable, instead of two. </td>
<td align="left">  Minor </td>
<td align="left"> . </td>
<td align="left"> Tsz Wo Nicholas Sze </td>
<td align="left"> Tsz Wo Nicholas Sze </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2185">HADOOP-2185</a> </td>
<td align="left"> Server ports: to roll or not to roll. </td>
<td align="left">  Major </td>
<td align="left"> conf </td>
<td align="left"> Konstantin Shvachko </td>
<td align="left"> Konstantin Shvachko </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2401">HADOOP-2401</a> </td>
<td align="left"> Lease holder information should be passed in ClientProtocol.abandonBlock(&#x2026;) </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Tsz Wo Nicholas Sze </td>
<td align="left"> Tsz Wo Nicholas Sze </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1841">HADOOP-1841</a> </td>
<td align="left"> IPC server should write repsonses asynchronously </td>
<td align="left">  Major </td>
<td align="left"> ipc </td>
<td align="left"> Doug Cutting </td>
<td align="left"> dhruba borthakur </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2432">HADOOP-2432</a> </td>
<td align="left"> If HDFS is going to throw an exception &#x201c;File does not exist&#x201d; it should include the name of the file </td>
<td align="left">  Minor </td>
<td align="left"> . </td>
<td align="left"> Jim Kellerman </td>
<td align="left"> Jim Kellerman </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2457">HADOOP-2457</a> </td>
<td align="left"> Add a &#x2018;forrest.home&#x2019; property for the &#x2018;docs&#x2019; target in build.xml </td>
<td align="left">  Minor </td>
<td align="left"> documentation </td>
<td align="left"> Arun C Murthy </td>
<td align="left"> Arun C Murthy </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2149">HADOOP-2149</a> </td>
<td align="left"> Pure name-node benchmarks. </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Konstantin Shvachko </td>
<td align="left"> Konstantin Shvachko </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2466">HADOOP-2466</a> </td>
<td align="left"> FileInputFormat computeSplitSize() method, change visibility to protected and make it a member method </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Alejandro Abdelnur </td>
<td align="left"> Alejandro Abdelnur </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2425">HADOOP-2425</a> </td>
<td align="left"> TextOutputFormat should special case Text </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Owen O&#x2019;Malley </td>
<td align="left"> Owen O&#x2019;Malley </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2208">HADOOP-2208</a> </td>
<td align="left"> Reduce frequency of Counter updates in the task tracker status </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Amareshwari Sriramadasu </td>
<td align="left"> Amareshwari Sriramadasu </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1719">HADOOP-1719</a> </td>
<td align="left"> Improve the utilization of shuffle copier threads </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Devaraj Das </td>
<td align="left"> Amar Kamat </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2390">HADOOP-2390</a> </td>
<td align="left"> Document the user-controls for intermediate/output compression via forrest </td>
<td align="left">  Major </td>
<td align="left"> documentation </td>
<td align="left"> Arun C Murthy </td>
<td align="left"> Arun C Murthy </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1660">HADOOP-1660</a> </td>
<td align="left"> add support for native library toDistributedCache </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Alejandro Abdelnur </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/HADOOP-2233">HADOOP-2233</a> </td>
<td align="left"> General example for modeling m/r load in Java </td>
<td align="left">  Minor </td>
<td align="left"> test </td>
<td align="left"> Chris Douglas </td>
<td align="left"> Chris Douglas </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2547">HADOOP-2547</a> </td>
<td align="left"> remove use of &#x2018;magic number&#x2019; in build.xml </td>
<td align="left">  Trivial </td>
<td align="left"> build </td>
<td align="left"> Hrishikesh </td>
<td align="left"> Hrishikesh </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2268">HADOOP-2268</a> </td>
<td align="left"> JobControl classes should use interfaces rather than implemenations </td>
<td align="left">  Minor </td>
<td align="left"> . </td>
<td align="left"> Adrian Woodhead </td>
<td align="left"> Adrian Woodhead </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2552">HADOOP-2552</a> </td>
<td align="left"> enable hdfs permission checking by default </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Doug Cutting </td>
<td align="left"> Doug Cutting </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2131">HADOOP-2131</a> </td>
<td align="left"> Speculative execution should be allowed for reducers only </td>
<td align="left">  Critical </td>
<td align="left"> . </td>
<td align="left"> Srikanth Kakani </td>
<td align="left"> Amareshwari Sriramadasu </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1873">HADOOP-1873</a> </td>
<td align="left"> User permissions for Map/Reduce </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Raghu Angadi </td>
<td align="left"> Hairong Kuang </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1965">HADOOP-1965</a> </td>
<td align="left"> Handle map output buffers better </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Devaraj Das </td>
<td align="left"> Amar Kamat </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2464">HADOOP-2464</a> </td>
<td align="left"> Test permissions related shell commands with DFS </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Raghu Angadi </td>
<td align="left"> Raghu Angadi </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1876">HADOOP-1876</a> </td>
<td align="left"> Persisting completed jobs status </td>
<td align="left">  Critical </td>
<td align="left"> . </td>
<td align="left"> Alejandro Abdelnur </td>
<td align="left"> Alejandro Abdelnur </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2077">HADOOP-2077</a> </td>
<td align="left"> Logging version number (and compiled date) at STARTUP_MSG </td>
<td align="left">  Trivial </td>
<td align="left"> . </td>
<td align="left"> Koji Noguchi </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/HADOOP-1989">HADOOP-1989</a> </td>
<td align="left"> Add support for simulated Data Nodes  - helpful for testing and performance benchmarking of the Name Node without having a large cluster </td>
<td align="left">  Minor </td>
<td align="left"> . </td>
<td align="left"> Sanjay Radia </td>
<td align="left"> Sanjay Radia </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1742">HADOOP-1742</a> </td>
<td align="left"> FSNamesystem.startFile()  javadoc is inconsistent </td>
<td align="left">  Minor </td>
<td align="left"> . </td>
<td align="left"> Konstantin Shvachko </td>
<td align="left"> Konstantin Shvachko </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1707">HADOOP-1707</a> </td>
<td align="left"> Remove the DFS Client disk-based cache </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> dhruba borthakur </td>
<td align="left"> dhruba borthakur </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2298">HADOOP-2298</a> </td>
<td align="left"> ant target without source and docs </td>
<td align="left">  Major </td>
<td align="left"> build </td>
<td align="left"> Gautam Kowshik </td>
<td align="left"> Hrishikesh </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2469">HADOOP-2469</a> </td>
<td align="left"> WritableUtils.clone should take Configuration rather than JobConf </td>
<td align="left">  Minor </td>
<td align="left"> io </td>
<td align="left"> stack </td>
<td align="left"> stack </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2596">HADOOP-2596</a> </td>
<td align="left"> add SequenceFile.createWriter() method that takes block size as parameter </td>
<td align="left">  Minor </td>
<td align="left"> io </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-2645">HADOOP-2645</a> </td>
<td align="left"> Additional metrics  &amp; jmx beans and cleanup to use the recent metrics libraries </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Sanjay Radia </td>
<td align="left"> Sanjay Radia </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2232">HADOOP-2232</a> </td>
<td align="left"> Add option to disable nagles algorithm in the IPC Server </td>
<td align="left">  Major </td>
<td align="left"> ipc </td>
<td align="left"> Clint Morgan </td>
<td align="left"> Clint Morgan </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2566">HADOOP-2566</a> </td>
<td align="left"> need FileSystem#globStatus method </td>
<td align="left">  Major </td>
<td align="left"> fs </td>
<td align="left"> Doug Cutting </td>
<td align="left"> Hairong Kuang </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-2072">HADOOP-2072</a> </td>
<td align="left"> RawLocalFileStatus is causing Path problems </td>
<td align="left">  Major </td>
<td align="left"> fs </td>
<td align="left"> Dennis Kubes </td>
<td align="left">  </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1245">HADOOP-1245</a> </td>
<td align="left"> value for mapred.tasktracker.tasks.maximum taken from jobtracker, not tasktracker </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Michael Bieniosek </td>
<td align="left"> Michael Bieniosek </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1898">HADOOP-1898</a> </td>
<td align="left"> locking for the ReflectionUtils.logThreadInfo is too conservative </td>
<td align="left">  Major </td>
<td align="left"> util </td>
<td align="left"> Owen O&#x2019;Malley </td>
<td align="left"> Amareshwari Sriramadasu </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2100">HADOOP-2100</a> </td>
<td align="left"> hadoop-daemon.sh script fails if HADOOP_PID_DIR doesn&#x2019;t exist </td>
<td align="left">  Major </td>
<td align="left"> scripts </td>
<td align="left"> Arun C Murthy </td>
<td align="left"> Michael Bieniosek </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2096">HADOOP-2096</a> </td>
<td align="left"> The file used to localize job.xml should be closed. </td>
<td align="left">  Minor </td>
<td align="left"> . </td>
<td align="left"> Amar Kamat </td>
<td align="left"> Amar Kamat </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2098">HADOOP-2098</a> </td>
<td align="left"> File handles for log files are still open in case of jobs with 0 maps </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Amar Kamat </td>
<td align="left"> Amar Kamat </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2112">HADOOP-2112</a> </td>
<td align="left"> TestMiniMRMapRedDebugScript fails due to a missing file </td>
<td align="left">  Blocker </td>
<td align="left"> . </td>
<td align="left"> Devaraj Das </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/HADOOP-2089">HADOOP-2089</a> </td>
<td align="left"> Multiple caheArchive does not work in Hadoop streaming </td>
<td align="left">  Critical </td>
<td align="left"> . </td>
<td align="left"> Milind Bhandarkar </td>
<td align="left"> Lohit Vijayarenu </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2071">HADOOP-2071</a> </td>
<td align="left"> StreamXmlRecordReader throws java.io.IOException: Mark/reset exception in hadoop 0.14 </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Lohit Vijayarenu </td>
<td align="left"> Lohit Vijayarenu </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1348">HADOOP-1348</a> </td>
<td align="left"> Configuration XML bug: comments inside values </td>
<td align="left">  Critical </td>
<td align="left"> conf </td>
<td align="left"> Eelco Lempsink </td>
<td align="left"> Rajagopal Natarajan </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1952">HADOOP-1952</a> </td>
<td align="left"> Streaming does not handle invalid -inputformat  (typo by users for example) </td>
<td align="left">  Minor </td>
<td align="left"> . </td>
<td align="left"> Lohit Vijayarenu </td>
<td align="left"> Lohit Vijayarenu </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2151">HADOOP-2151</a> </td>
<td align="left"> FileSyste.globPaths does not validate the return list of Paths </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Lohit Vijayarenu </td>
<td align="left"> Lohit Vijayarenu </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2121">HADOOP-2121</a> </td>
<td align="left"> Unexpected IOException in DFSOutputStream.close() </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Raghu Angadi </td>
<td align="left"> Raghu Angadi </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1130">HADOOP-1130</a> </td>
<td align="left"> Remove unused ClientFinalizer in DFSClient </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Philippe Gassmann </td>
<td align="left"> Chris Douglas </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2204">HADOOP-2204</a> </td>
<td align="left"> DFSTestUtil.waitReplication does not wait. </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Raghu Angadi </td>
<td align="left"> Raghu Angadi </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2078">HADOOP-2078</a> </td>
<td align="left"> Name-node should be able to close empty files. </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Konstantin Shvachko </td>
<td align="left"> Konstantin Shvachko </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1642">HADOOP-1642</a> </td>
<td align="left"> Jobs using LocalJobRunner + JobControl fails </td>
<td align="left">  Critical </td>
<td align="left"> . </td>
<td align="left"> Johan Oskarsson </td>
<td align="left"> Doug Cutting </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2104">HADOOP-2104</a> </td>
<td align="left"> clover description attribute suppresses all other targets in -projecthelp </td>
<td align="left">  Trivial </td>
<td align="left"> build </td>
<td align="left"> Chris Douglas </td>
<td align="left"> Chris Douglas </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2212">HADOOP-2212</a> </td>
<td align="left"> java.lang.ArithmeticException: / by zero in ChecksumFileSystem.open </td>
<td align="left">  Critical </td>
<td align="left"> fs </td>
<td align="left"> Michael Bieniosek </td>
<td align="left"> Michael Bieniosek </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2216">HADOOP-2216</a> </td>
<td align="left"> Job UI doesnot show running tasks and complete tasks correctly. </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Amareshwari Sriramadasu </td>
<td align="left"> Amar Kamat </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2272">HADOOP-2272</a> </td>
<td align="left"> findbugs currently fails due to hadoop-streaming having moved </td>
<td align="left">  Major </td>
<td align="left"> build </td>
<td align="left"> Adrian Woodhead </td>
<td align="left"> stack </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2244">HADOOP-2244</a> </td>
<td align="left"> MapWritable.readFields needs to clear internal hash else instance accumulates entries forever </td>
<td align="left">  Major </td>
<td align="left"> io </td>
<td align="left"> stack </td>
<td align="left"> stack </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1984">HADOOP-1984</a> </td>
<td align="left"> some reducer stuck at copy phase and progress extremely slowly </td>
<td align="left">  Critical </td>
<td align="left"> . </td>
<td align="left"> Runping Qi </td>
<td align="left"> Amar Kamat </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2245">HADOOP-2245</a> </td>
<td align="left"> TestRecordMR and TestAggregates fail once in a while </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Devaraj Das </td>
<td align="left"> Adrian Woodhead </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2275">HADOOP-2275</a> </td>
<td align="left"> Erroneous detection of corrupted file when namenode fails to allocate any datanodes for newly allocated block </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> dhruba borthakur </td>
<td align="left"> dhruba borthakur </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2256">HADOOP-2256</a> </td>
<td align="left"> TestBlockReplacement unit test failed. </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Raghu Angadi </td>
<td align="left"> Hairong Kuang </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2209">HADOOP-2209</a> </td>
<td align="left"> SecondaryNamenode process should exit if it encounters Runtime exceptions </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> dhruba borthakur </td>
<td align="left">  </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2314">HADOOP-2314</a> </td>
<td align="left"> TestBlockReplacement occasionally get into an infinite loop </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Hairong Kuang </td>
<td align="left"> Hairong Kuang </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2300">HADOOP-2300</a> </td>
<td align="left"> mapred.tasktracker.tasks.maximum is completely ignored </td>
<td align="left">  Blocker </td>
<td align="left"> . </td>
<td align="left"> Owen O&#x2019;Malley </td>
<td align="left"> Amareshwari Sriramadasu </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2368">HADOOP-2368</a> </td>
<td align="left"> Lots of unit tests fail on Windows with exception: Login failed: CreateProcess </td>
<td align="left">  Blocker </td>
<td align="left"> . </td>
<td align="left"> Mukund Madhugiri </td>
<td align="left"> Tsz Wo Nicholas Sze </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2363">HADOOP-2363</a> </td>
<td align="left"> Unit tests fail if there is another instance of Hadoop </td>
<td align="left">  Major </td>
<td align="left"> test </td>
<td align="left"> Raghu Angadi </td>
<td align="left"> Konstantin Shvachko </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2271">HADOOP-2271</a> </td>
<td align="left"> chmod in ant package target fails </td>
<td align="left">  Major </td>
<td align="left"> build </td>
<td align="left"> Adrian Woodhead </td>
<td align="left"> Adrian Woodhead </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2313">HADOOP-2313</a> </td>
<td align="left"> build does not fail when libhdfs build fails </td>
<td align="left">  Minor </td>
<td align="left"> . </td>
<td align="left"> Nigel Daley </td>
<td align="left"> Nigel Daley </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2359">HADOOP-2359</a> </td>
<td align="left"> PendingReplicationMonitor thread received exception. java.lang.InterruptedException </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Owen O&#x2019;Malley </td>
<td align="left"> dhruba borthakur </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2365">HADOOP-2365</a> </td>
<td align="left"> Result of HashFunction.hash() contains all identical values </td>
<td align="left">  Minor </td>
<td align="left"> . </td>
<td align="left"> Andrzej Bialecki </td>
<td align="left"> Jim Kellerman </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2323">HADOOP-2323</a> </td>
<td align="left"> JobTracker.close() prints stack traces for exceptions that are not errors </td>
<td align="left">  Minor </td>
<td align="left"> . </td>
<td align="left"> Jim Kellerman </td>
<td align="left"> Jim Kellerman </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2376">HADOOP-2376</a> </td>
<td align="left"> The sort example shouldn&#x2019;t override the number of maps </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Owen O&#x2019;Malley </td>
<td align="left"> Owen O&#x2019;Malley </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2248">HADOOP-2248</a> </td>
<td align="left"> Word count example is spending 24% of the time in incrCounter </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Owen O&#x2019;Malley </td>
<td align="left"> Owen O&#x2019;Malley </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2228">HADOOP-2228</a> </td>
<td align="left"> Jobs fail because job.xml exists </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Johan Oskarsson </td>
<td align="left"> Johan Oskarsson </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2434">HADOOP-2434</a> </td>
<td align="left"> MapFile.get on HDFS in TRUNK is WAY!!! slower than 0.15.x </td>
<td align="left">  Blocker </td>
<td align="left"> io </td>
<td align="left"> stack </td>
<td align="left"> stack </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2459">HADOOP-2459</a> </td>
<td align="left"> Running &#x2018;ant docs tar&#x2019; includes src/docs/build in the resulting tar file </td>
<td align="left">  Minor </td>
<td align="left"> build </td>
<td align="left"> Nigel Daley </td>
<td align="left"> Nigel Daley </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2453">HADOOP-2453</a> </td>
<td align="left"> wordcount-simple example gives ParseException with examples configuration file </td>
<td align="left">  Blocker </td>
<td align="left"> . </td>
<td align="left"> Amareshwari Sriramadasu </td>
<td align="left"> Amareshwari Sriramadasu </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2215">HADOOP-2215</a> </td>
<td align="left"> Change documentation in cluster_setup.html and mapred_tutorial.html post HADOOP-1274 </td>
<td align="left">  Major </td>
<td align="left"> documentation </td>
<td align="left"> Amareshwari Sriramadasu </td>
<td align="left"> Amareshwari Sriramadasu </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2352">HADOOP-2352</a> </td>
<td align="left"> Remove AC_LIB_CHECK from src/native/configure.ac to ensure libhadoop.so doesn&#x2019;t have a dependency on libz.so/liblzo.so </td>
<td align="left">  Major </td>
<td align="left"> native </td>
<td align="left"> Arun C Murthy </td>
<td align="left"> Arun C Murthy </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2220">HADOOP-2220</a> </td>
<td align="left"> Reduce tasks fail too easily because of repeated fetch failures </td>
<td align="left">  Blocker </td>
<td align="left"> . </td>
<td align="left"> Christian Kunz </td>
<td align="left"> Amar Kamat </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2247">HADOOP-2247</a> </td>
<td align="left"> Mappers fail easily due to repeated failures </td>
<td align="left">  Blocker </td>
<td align="left"> . </td>
<td align="left"> Srikanth Kakani </td>
<td align="left"> Amar Kamat </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2452">HADOOP-2452</a> </td>
<td align="left"> Eclipse plug-in build.xml issue </td>
<td align="left">  Trivial </td>
<td align="left"> build </td>
<td align="left"> Christophe Taton </td>
<td align="left"> Christophe Taton </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2476">HADOOP-2476</a> </td>
<td align="left"> Unit test fails on Windows: TestCopyFiles.testCopyFromLocalToLocal </td>
<td align="left">  Blocker </td>
<td align="left"> fs </td>
<td align="left"> Mukund Madhugiri </td>
<td align="left"> Raghu Angadi </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2503">HADOOP-2503</a> </td>
<td align="left"> REST Insert / Select </td>
<td align="left">  Critical </td>
<td align="left"> . </td>
<td align="left"> Billy Pearson </td>
<td align="left"> Bryan Duxbury </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2492">HADOOP-2492</a> </td>
<td align="left"> ConcurrentModificationException in org.apache.hadoop.ipc.Server.Responder </td>
<td align="left">  Major </td>
<td align="left"> ipc </td>
<td align="left"> Devaraj Das </td>
<td align="left"> dhruba borthakur </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2344">HADOOP-2344</a> </td>
<td align="left"> Free up the buffers (input and error) while executing a shell command before waiting for it to finish. </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Amar Kamat </td>
<td align="left"> Amar Kamat </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2511">HADOOP-2511</a> </td>
<td align="left"> HADOOP-2344 introduced a javadoc warning </td>
<td align="left">  Major </td>
<td align="left"> documentation </td>
<td align="left"> Arun C Murthy </td>
<td align="left"> Arun C Murthy </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2442">HADOOP-2442</a> </td>
<td align="left"> Unit test failed: org.apache.hadoop.fs.TestLocalFileSystemPermission.testLocalFSsetOwner </td>
<td align="left">  Critical </td>
<td align="left"> fs </td>
<td align="left"> Mukund Madhugiri </td>
<td align="left"> Raghu Angadi </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2523">HADOOP-2523</a> </td>
<td align="left"> Unit test fails on Windows: TestDFSShell.testFilePermissions </td>
<td align="left">  Blocker </td>
<td align="left"> . </td>
<td align="left"> Mukund Madhugiri </td>
<td align="left"> Raghu Angadi </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2535">HADOOP-2535</a> </td>
<td align="left"> Remove support for deprecated mapred.child.heap.size and indentation fix in TaskRunner.java </td>
<td align="left">  Minor </td>
<td align="left"> . </td>
<td align="left"> Arun C Murthy </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/HADOOP-2512">HADOOP-2512</a> </td>
<td align="left"> error stream handling in Shell executor </td>
<td align="left">  Blocker </td>
<td align="left"> util </td>
<td align="left"> Raghu Angadi </td>
<td align="left"> Raghu Angadi </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2420">HADOOP-2420</a> </td>
<td align="left"> Use exit code to detect normal errors while excuting &#x2018;ls&#x2019; in Local FS </td>
<td align="left">  Blocker </td>
<td align="left"> fs </td>
<td align="left"> Raghu Angadi </td>
<td align="left"> Raghu Angadi </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2285">HADOOP-2285</a> </td>
<td align="left"> TextInputFormat is slow compared to reading files. </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Owen O&#x2019;Malley </td>
<td align="left"> Owen O&#x2019;Malley </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2446">HADOOP-2446</a> </td>
<td align="left"> TestHDFSServerPorts fails. </td>
<td align="left">  Major </td>
<td align="left"> test </td>
<td align="left"> Raghu Angadi </td>
<td align="left"> Nigel Daley </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2537">HADOOP-2537</a> </td>
<td align="left"> make build process compatible with Ant 1.7.0 </td>
<td align="left">  Major </td>
<td align="left"> build </td>
<td align="left"> Nigel Daley </td>
<td align="left"> Hrishikesh </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1281">HADOOP-1281</a> </td>
<td align="left"> Speculative map tasks aren&#x2019;t getting killed although the TIP completed </td>
<td align="left">  Critical </td>
<td align="left"> . </td>
<td align="left"> Arun C Murthy </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/HADOOP-2571">HADOOP-2571</a> </td>
<td align="left"> javac generates a warning in test/o.a.h.io.FileBench </td>
<td align="left">  Trivial </td>
<td align="left"> test </td>
<td align="left"> Chris Douglas </td>
<td align="left"> Chris Douglas </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2583">HADOOP-2583</a> </td>
<td align="left"> Potential Eclipse plug-in UI loop when editing location parameters </td>
<td align="left">  Minor </td>
<td align="left"> contrib/eclipse-plugin </td>
<td align="left"> Christophe Taton </td>
<td align="left"> Christophe Taton </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2481">HADOOP-2481</a> </td>
<td align="left"> NNBench should periodically report its progress </td>
<td align="left">  Major </td>
<td align="left"> test </td>
<td align="left"> Hairong Kuang </td>
<td align="left"> Hairong Kuang </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2601">HADOOP-2601</a> </td>
<td align="left"> TestNNThroughput should not use a fixed namenode port </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Hairong Kuang </td>
<td align="left"> Konstantin Shvachko </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2494">HADOOP-2494</a> </td>
<td align="left"> Set +x on contrib/*/bin/* in packaged tar bundle </td>
<td align="left">  Major </td>
<td align="left"> scripts </td>
<td align="left"> stack </td>
<td align="left"> stack </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2605">HADOOP-2605</a> </td>
<td align="left"> leading slash in mapred.task.tracker.report.bindAddress </td>
<td align="left">  Major </td>
<td align="left"> conf </td>
<td align="left"> Konstantin Shvachko </td>
<td align="left"> Konstantin Shvachko </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2620">HADOOP-2620</a> </td>
<td align="left"> &#x2018;bin/hadoop fs -help&#x2019; does not list file permissions commands. </td>
<td align="left">  Trivial </td>
<td align="left"> fs </td>
<td align="left"> Raghu Angadi </td>
<td align="left"> Raghu Angadi </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2614">HADOOP-2614</a> </td>
<td align="left"> dfs web interfaces should run as a configurable user account </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Tsz Wo Nicholas Sze </td>
<td align="left"> Tsz Wo Nicholas Sze </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-290">HADOOP-290</a> </td>
<td align="left"> Fix Datanode transfer thread logging </td>
<td align="left">  Minor </td>
<td align="left"> . </td>
<td align="left"> Dennis Kubes </td>
<td align="left"> dhruba borthakur </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2538">HADOOP-2538</a> </td>
<td align="left"> NPE in TaskLog.java </td>
<td align="left">  Trivial </td>
<td align="left"> . </td>
<td align="left"> Michael Bieniosek </td>
<td align="left"> Michael Bieniosek </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2582">HADOOP-2582</a> </td>
<td align="left"> hadoop dfs -copyToLocal creates zero byte files, when source file does not exists </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Lohit Vijayarenu </td>
<td align="left"> Lohit Vijayarenu </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2189">HADOOP-2189</a> </td>
<td align="left"> Incrementing user counters should count as progress </td>
<td align="left">  Blocker </td>
<td align="left"> . </td>
<td align="left"> Owen O&#x2019;Malley </td>
<td align="left"> Devaraj Das </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2284">HADOOP-2284</a> </td>
<td align="left"> BasicTypeSorterBase.compare calls progress on each compare </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Owen O&#x2019;Malley </td>
<td align="left"> Amar Kamat </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2649">HADOOP-2649</a> </td>
<td align="left"> The ReplicationMonitor sleep period should be configurable </td>
<td align="left">  Blocker </td>
<td align="left"> . </td>
<td align="left"> dhruba borthakur </td>
<td align="left"> dhruba borthakur </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2549">HADOOP-2549</a> </td>
<td align="left"> hdfs does not honor dfs.du.reserved setting </td>
<td align="left">  Critical </td>
<td align="left"> . </td>
<td align="left"> Joydeep Sen Sarma </td>
<td align="left"> Hairong Kuang </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2509">HADOOP-2509</a> </td>
<td align="left"> Add rat target to build </td>
<td align="left">  Major </td>
<td align="left"> build </td>
<td align="left"> Nigel Daley </td>
<td align="left"> Hrishikesh </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2659">HADOOP-2659</a> </td>
<td align="left"> The commands in DFSAdmin should require admin privilege </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Tsz Wo Nicholas Sze </td>
<td align="left"> Tsz Wo Nicholas Sze </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2633">HADOOP-2633</a> </td>
<td align="left"> Revert change to fsck made as part of permissions implementation </td>
<td align="left">  Blocker </td>
<td align="left"> . </td>
<td align="left"> Robert Chansler </td>
<td align="left"> Tsz Wo Nicholas Sze </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2687">HADOOP-2687</a> </td>
<td align="left"> 1707 added errant INFO-level logging to DFSClient </td>
<td align="left">  Blocker </td>
<td align="left"> . </td>
<td align="left"> stack </td>
<td align="left"> stack </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2402">HADOOP-2402</a> </td>
<td align="left"> Lzo compression compresses each write from TextOutputFormat </td>
<td align="left">  Major </td>
<td align="left"> io, native </td>
<td align="left"> Chris Douglas </td>
<td align="left"> Chris Douglas </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2691">HADOOP-2691</a> </td>
<td align="left"> Some junit tests fail with the exception: All datanodes are bad. Aborting&#x2026; </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Hairong Kuang </td>
<td align="left"> dhruba borthakur </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1195">HADOOP-1195</a> </td>
<td align="left"> NullPointerException in FSNamesystem due to getDatanode() return value is not checked </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Konstantin Shvachko </td>
<td align="left"> dhruba borthakur </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2640">HADOOP-2640</a> </td>
<td align="left"> MultiFileSplitInputFormat always returns 1 split when avgLengthPerSplit &gt; Integer.MAX_VALUE </td>
<td align="left">  Blocker </td>
<td align="left"> . </td>
<td align="left"> Fr&#xe9;d&#xe9;ric Bertin </td>
<td align="left"> Enis Soztutar </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2626">HADOOP-2626</a> </td>
<td align="left"> RawLocalFileStatus is badly handling URIs </td>
<td align="left">  Major </td>
<td align="left"> fs </td>
<td align="left"> Fr&#xe9;d&#xe9;ric Bertin </td>
<td align="left"> Doug Cutting </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2646">HADOOP-2646</a> </td>
<td align="left"> SortValidator broken with fully-qualified working directories </td>
<td align="left">  Blocker </td>
<td align="left"> test </td>
<td align="left"> Doug Cutting </td>
<td align="left"> Arun C Murthy </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2652">HADOOP-2652</a> </td>
<td align="left"> Fix permission issues for HftpFileSystem </td>
<td align="left">  Blocker </td>
<td align="left"> . </td>
<td align="left"> Tsz Wo Nicholas Sze </td>
<td align="left"> Tsz Wo Nicholas Sze </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2092">HADOOP-2092</a> </td>
<td align="left"> Pipes C++ task does not die even if the Java tasks die </td>
<td align="left">  Blocker </td>
<td align="left"> . </td>
<td align="left"> Amareshwari Sriramadasu </td>
<td align="left"> Amareshwari Sriramadasu </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2714">HADOOP-2714</a> </td>
<td align="left"> Unit test fails on Windows: rg.apache.hadoop.dfs.TestDecommission </td>
<td align="left">  Blocker </td>
<td align="left"> . </td>
<td align="left"> Mukund Madhugiri </td>
<td align="left"> dhruba borthakur </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2576">HADOOP-2576</a> </td>
<td align="left"> Namenode performance degradation over time </td>
<td align="left">  Blocker </td>
<td align="left"> . </td>
<td align="left"> Christian Kunz </td>
<td align="left"> Raghu Angadi </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2720">HADOOP-2720</a> </td>
<td align="left"> Update HOD in Hadoop 0.16 </td>
<td align="left">  Blocker </td>
<td align="left"> contrib/hod </td>
<td align="left"> Hemanth Yamijala </td>
<td align="left"> Hemanth Yamijala </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2713">HADOOP-2713</a> </td>
<td align="left"> Unit test fails on Windows: org.apache.hadoop.dfs.TestDatanodeDeath </td>
<td align="left">  Blocker </td>
<td align="left"> . </td>
<td align="left"> Mukund Madhugiri </td>
<td align="left"> dhruba borthakur </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2639">HADOOP-2639</a> </td>
<td align="left"> Reducers stuck in shuffle </td>
<td align="left">  Blocker </td>
<td align="left"> . </td>
<td align="left"> Amareshwari Sriramadasu </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/HADOOP-2723">HADOOP-2723</a> </td>
<td align="left"> Hadoop 2367- Does not respect JobConf.getProfileEnabled() </td>
<td align="left">  Blocker </td>
<td align="left"> . </td>
<td align="left"> Clint Morgan </td>
<td align="left"> Amareshwari Sriramadasu </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2734">HADOOP-2734</a> </td>
<td align="left"> docs link to lucene.apache.org </td>
<td align="left">  Major </td>
<td align="left"> documentation </td>
<td align="left"> Doug Cutting </td>
<td align="left"> Doug Cutting </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2732">HADOOP-2732</a> </td>
<td align="left"> ab{5[6-9],[6-9][6-9]}.gz should not be treated as an illegal glob </td>
<td align="left">  Blocker </td>
<td align="left"> fs </td>
<td align="left"> Hairong Kuang </td>
<td align="left"> Hairong Kuang </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2404">HADOOP-2404</a> </td>
<td align="left"> HADOOP-2185 breaks compatibility with hadoop-0.15.0 </td>
<td align="left">  Blocker </td>
<td align="left"> conf </td>
<td align="left"> Arun C Murthy </td>
<td align="left"> Owen O&#x2019;Malley </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2740">HADOOP-2740</a> </td>
<td align="left"> Modify HOD to work with changes mentioned in HADOOP-2404 </td>
<td align="left">  Blocker </td>
<td align="left"> contrib/hod </td>
<td align="left"> Hemanth Yamijala </td>
<td align="left"> Hemanth Yamijala </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2755">HADOOP-2755</a> </td>
<td align="left"> dfs fsck extremely slow, dfs ls times out </td>
<td align="left">  Blocker </td>
<td align="left"> . </td>
<td align="left"> Christian Kunz </td>
<td align="left"> Tsz Wo Nicholas Sze </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2768">HADOOP-2768</a> </td>
<td align="left"> DFSIO write performance benchmark shows a regression </td>
<td align="left">  Blocker </td>
<td align="left"> . </td>
<td align="left"> Mukund Madhugiri </td>
<td align="left"> dhruba borthakur </td></tr>
</tbody>
</table></section><section>
<h3><a name="TESTS:"></a>TESTS:</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-2000">HADOOP-2000</a> </td>
<td align="left"> Re-write NNBench to use MapReduce </td>
<td align="left">  Major </td>
<td align="left"> test </td>
<td align="left"> Mukund Madhugiri </td>
<td align="left"> Mukund Madhugiri </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2369">HADOOP-2369</a> </td>
<td align="left"> Representative mix of jobs for large cluster throughput benchmarking </td>
<td align="left">  Major </td>
<td align="left"> test </td>
<td align="left"> Chris Douglas </td>
<td align="left"> Runping Qi </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2406">HADOOP-2406</a> </td>
<td align="left"> Micro-benchmark to measure read/write times through InputFormats </td>
<td align="left">  Major </td>
<td align="left"> fs, test </td>
<td align="left"> Chris Douglas </td>
<td align="left"> Chris Douglas </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2449">HADOOP-2449</a> </td>
<td align="left"> Restore the  old NN Bench that was replaced by a MR NN Bench </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Sanjay Radia </td>
<td align="left"> Sanjay Radia </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2431">HADOOP-2431</a> </td>
<td align="left"> Test HDFS File Permissions </td>
<td align="left">  Major </td>
<td align="left"> test </td>
<td align="left"> Hairong Kuang </td>
<td align="left"> Hairong Kuang </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-2342">HADOOP-2342</a> </td>
<td align="left"> create a micro-benchmark for measure local-file versus hdfs read </td>
<td align="left">  Major </td>
<td align="left"> . </td>
<td align="left"> Owen O&#x2019;Malley </td>
<td align="left"> Owen O&#x2019;Malley </td></tr>
</tbody>
</table></section></section>
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