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<h1>Apache Hadoop Changelog</h1>
<div class="section">
<h2><a name="Release_0.20.205.0_-_2011-10-06"></a>Release 0.20.205.0 - 2011-10-06</h2>
<div class="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-630">HDFS-630</a> </td>
<td align="left"> In DFSOutputStream.nextBlockOutputStream(), the client can exclude specific datanodes when locating the next block. </td>
<td align="left"> Major </td>
<td align="left"> hdfs-client, namenode </td>
<td align="left"> Ruyue Ma </td>
<td align="left"> Cosmin Lehene </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-1554">HDFS-1554</a> </td>
<td align="left"> Append 0.20: New semantics for recoverLease </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/HDFS-2202">HDFS-2202</a> </td>
<td align="left"> Changes to balancer bandwidth should not require datanode restart. </td>
<td align="left"> Major </td>
<td align="left"> balancer &amp; mover, datanode </td>
<td align="left"> Eric Payne </td>
<td align="left"> Eric Payne </td></tr>
</tbody>
</table></div>
<div class="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/HDFS-200">HDFS-200</a> </td>
<td align="left"> In HDFS, sync() not yet guarantees data available to the new readers </td>
<td align="left"> Blocker </td>
<td align="left"> . </td>
<td align="left"> Tsz Wo Nicholas Sze </td>
<td align="left"> dhruba borthakur </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-1520">HDFS-1520</a> </td>
<td align="left"> HDFS 20 append: Lightweight NameNode operation to trigger lease recovery </td>
<td align="left"> Major </td>
<td align="left"> namenode </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-7594">HADOOP-7594</a> </td>
<td align="left"> Support HTTP REST in HttpServer </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-7119">HADOOP-7119</a> </td>
<td align="left"> add Kerberos HTTP SPNEGO authentication support to Hadoop JT/NN/DN/TT web-consoles </td>
<td align="left"> Major </td>
<td align="left"> security </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-6889">HADOOP-6889</a> </td>
<td align="left"> Make RPC to have an option to timeout </td>
<td align="left"> Major </td>
<td align="left"> ipc </td>
<td align="left"> Hairong Kuang </td>
<td align="left"> John George </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-2777">MAPREDUCE-2777</a> </td>
<td align="left"> Backport MAPREDUCE-220 to Hadoop 20 security branch </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Jonathan Eagles </td>
<td align="left"> Amar Kamat </td></tr>
</tbody>
</table></div>
<div class="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/HDFS-826">HDFS-826</a> </td>
<td align="left"> Allow a mechanism for an application to detect that datanode(s) have died in the write pipeline </td>
<td align="left"> Major </td>
<td align="left"> hdfs-client </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/HDFS-1054">HDFS-1054</a> </td>
<td align="left"> Remove unnecessary sleep after failure in nextBlockOutputStream </td>
<td align="left"> Major </td>
<td align="left"> hdfs-client </td>
<td align="left"> Todd Lipcon </td>
<td align="left"> Todd Lipcon </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-1210">HDFS-1210</a> </td>
<td align="left"> DFSClient should log exception when block recovery fails </td>
<td align="left"> Trivial </td>
<td align="left"> hdfs-client </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/HDFS-1211">HDFS-1211</a> </td>
<td align="left"> 0.20 append: Block receiver should not log &#x201c;rewind&#x201d; packets at INFO level </td>
<td align="left"> Minor </td>
<td align="left"> datanode </td>
<td align="left"> Todd Lipcon </td>
<td align="left"> Todd Lipcon </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-895">HDFS-895</a> </td>
<td align="left"> Allow hflush/sync to occur in parallel with new writes to the file </td>
<td align="left"> Major </td>
<td align="left"> hdfs-client </td>
<td align="left"> dhruba borthakur </td>
<td align="left"> Todd Lipcon </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-1555">HDFS-1555</a> </td>
<td align="left"> HDFS 20 append: Disallow pipeline recovery if a file is already being lease recovered </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-7343">HADOOP-7343</a> </td>
<td align="left"> backport HADOOP-7008 and HADOOP-7042 to branch-0.20-security </td>
<td align="left"> Minor </td>
<td align="left"> test </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/HADOOP-7432">HADOOP-7432</a> </td>
<td align="left"> Back-port HADOOP-7110 to 0.20-security </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Sherry Chen </td>
<td align="left"> Sherry Chen </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7314">HADOOP-7314</a> </td>
<td align="left"> Add support for throwing UnknownHostException when a host doesn&#x2019;t resolve </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Jeffrey Naisbitt </td>
<td align="left"> Jeffrey Naisbitt </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-2494">MAPREDUCE-2494</a> </td>
<td align="left"> Make the distributed cache delete entires using LRU priority </td>
<td align="left"> Major </td>
<td align="left"> distributed-cache </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/MAPREDUCE-2729">MAPREDUCE-2729</a> </td>
<td align="left"> Reducers are always counted having &#x201c;pending tasks&#x201d; even if they can&#x2019;t be scheduled yet because not enough of their mappers have completed </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Sherry Chen </td>
<td align="left"> Sherry Chen </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7472">HADOOP-7472</a> </td>
<td align="left"> RPC client should deal with the IP address changes </td>
<td align="left"> Minor </td>
<td align="left"> ipc </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-2981">MAPREDUCE-2981</a> </td>
<td align="left"> Backport trunk fairscheduler to 0.20-security branch </td>
<td align="left"> Major </td>
<td align="left"> contrib/fair-share </td>
<td align="left"> Matei Zaharia </td>
<td align="left"> Matei Zaharia </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7707">HADOOP-7707</a> </td>
<td align="left"> improve config generator to allow users to specify proxy user, turn append on or off, turn webhdfs on or off </td>
<td align="left"> Major </td>
<td align="left"> conf </td>
<td align="left"> Arpit Gupta </td>
<td align="left"> Arpit Gupta </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7720">HADOOP-7720</a> </td>
<td align="left"> improve the hadoop-setup-conf.sh to read in the hbase user and setup the configs </td>
<td align="left"> Major </td>
<td align="left"> conf </td>
<td align="left"> Arpit Gupta </td>
<td align="left"> Arpit Gupta </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7655">HADOOP-7655</a> </td>
<td align="left"> provide a small validation script that smoke tests the installed cluster </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Arpit Gupta </td>
<td align="left"> Arpit Gupta </td></tr>
</tbody>
</table></div>
<div class="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/HDFS-606">HDFS-606</a> </td>
<td align="left"> ConcurrentModificationException in invalidateCorruptReplicas() </td>
<td align="left"> Major </td>
<td align="left"> namenode </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/HDFS-724">HDFS-724</a> </td>
<td align="left"> Pipeline close hangs if one of the datanode is not responsive. </td>
<td align="left"> Blocker </td>
<td align="left"> datanode, hdfs-client </td>
<td align="left"> Tsz Wo Nicholas Sze </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-6722">HADOOP-6722</a> </td>
<td align="left"> NetUtils.connect should check that it hasn&#x2019;t connected a socket to itself </td>
<td align="left"> Major </td>
<td align="left"> util </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/HDFS-142">HDFS-142</a> </td>
<td align="left"> In 0.20, move blocks being written into a blocksBeingWritten directory </td>
<td align="left"> Blocker </td>
<td align="left"> . </td>
<td align="left"> Raghu Angadi </td>
<td align="left"> dhruba borthakur </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-1141">HDFS-1141</a> </td>
<td align="left"> completeFile does not check lease ownership </td>
<td align="left"> Blocker </td>
<td align="left"> namenode </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/HDFS-1207">HDFS-1207</a> </td>
<td align="left"> 0.20-append: stallReplicationWork should be volatile </td>
<td align="left"> Major </td>
<td align="left"> namenode </td>
<td align="left"> Todd Lipcon </td>
<td align="left"> Todd Lipcon </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-1204">HDFS-1204</a> </td>
<td align="left"> 0.20: Lease expiration should recover single files, not entire lease holder </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Todd Lipcon </td>
<td align="left"> sam rash </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-1118">HDFS-1118</a> </td>
<td align="left"> DFSOutputStream socket leak when cannot connect to DataNode </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Zheng Shao </td>
<td align="left"> Zheng Shao </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-1202">HDFS-1202</a> </td>
<td align="left"> DataBlockScanner throws NPE when updated before initialized </td>
<td align="left"> Major </td>
<td align="left"> datanode </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-6833">HADOOP-6833</a> </td>
<td align="left"> IPC leaks call parameters when exceptions thrown </td>
<td align="left"> Blocker </td>
<td align="left"> . </td>
<td align="left"> Todd Lipcon </td>
<td align="left"> Todd Lipcon </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-1346">HDFS-1346</a> </td>
<td align="left"> DFSClient receives out of order packet ack </td>
<td align="left"> Major </td>
<td align="left"> datanode, hdfs-client </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/HDFS-1164">HDFS-1164</a> </td>
<td align="left"> TestHdfsProxy is failing </td>
<td align="left"> Major </td>
<td align="left"> contrib/hdfsproxy </td>
<td align="left"> Eli Collins </td>
<td align="left"> Todd Lipcon </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-988">HDFS-988</a> </td>
<td align="left"> saveNamespace race can corrupt the edits log </td>
<td align="left"> Blocker </td>
<td align="left"> namenode </td>
<td align="left"> dhruba borthakur </td>
<td align="left"> Eli Collins </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-1836">HDFS-1836</a> </td>
<td align="left"> Thousand of CLOSE_WAIT socket </td>
<td align="left"> Major </td>
<td align="left"> hdfs-client </td>
<td align="left"> Dennis Cheung </td>
<td align="left"> Bharath Mundlapudi </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7400">HADOOP-7400</a> </td>
<td align="left"> HdfsProxyTests fails when the -Dtest.build.dir and -Dbuild.test is set </td>
<td align="left"> Major </td>
<td align="left"> build </td>
<td align="left"> Giridharan Kesavan </td>
<td align="left"> Giridharan Kesavan </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-2650">MAPREDUCE-2650</a> </td>
<td align="left"> back-port MAPREDUCE-2238 to 0.20-security </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Sherry Chen </td>
<td align="left"> Sherry Chen </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-2324">MAPREDUCE-2324</a> </td>
<td align="left"> Job should fail if a reduce task can&#x2019;t be scheduled anywhere </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-2187">MAPREDUCE-2187</a> </td>
<td align="left"> map tasks timeout during sorting </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Gianmarco De Francisci Morales </td>
<td align="left"> Anupam Seth </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-2053">HDFS-2053</a> </td>
<td align="left"> Bug in INodeDirectory#computeContentSummary warning </td>
<td align="left"> Minor </td>
<td align="left"> namenode </td>
<td align="left"> Michael Noll </td>
<td align="left"> Michael Noll </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-2117">HDFS-2117</a> </td>
<td align="left"> DiskChecker#mkdirsWithExistsAndPermissionCheck may return true even when the dir is not created </td>
<td align="left"> Minor </td>
<td align="left"> datanode </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/MAPREDUCE-2705">MAPREDUCE-2705</a> </td>
<td align="left"> tasks localized and launched serially by TaskLauncher - causing other tasks to be delayed </td>
<td align="left"> Major </td>
<td align="left"> tasktracker </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/HDFS-2190">HDFS-2190</a> </td>
<td align="left"> NN fails to start if it encounters an empty or malformed fstime file </td>
<td align="left"> Major </td>
<td align="left"> namenode </td>
<td align="left"> Aaron T. Myers </td>
<td align="left"> Aaron T. Myers </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-2489">MAPREDUCE-2489</a> </td>
<td align="left"> Jobsplits with random hostnames can make the queue unusable </td>
<td align="left"> Major </td>
<td align="left"> jobtracker </td>
<td align="left"> Jeffrey Naisbitt </td>
<td align="left"> Jeffrey Naisbitt </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-2259">HDFS-2259</a> </td>
<td align="left"> DN web-UI doesn&#x2019;t work with paths that contain html </td>
<td align="left"> Minor </td>
<td align="left"> datanode </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/MAPREDUCE-2852">MAPREDUCE-2852</a> </td>
<td align="left"> Jira for YDH bug 2854624 </td>
<td align="left"> Major </td>
<td align="left"> tasktracker </td>
<td align="left"> Eli Collins </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-7539">HADOOP-7539</a> </td>
<td align="left"> merge hadoop archive goodness from trunk to .20 </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> John George </td>
<td align="left"> John George </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7596">HADOOP-7596</a> </td>
<td align="left"> Enable jsvc to work with Hadoop RPM package </td>
<td align="left"> Major </td>
<td align="left"> build </td>
<td align="left"> Eric Yang </td>
<td align="left"> Eric Yang </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-2309">HDFS-2309</a> </td>
<td align="left"> TestRenameWhileOpen fails in branch-0.20-security </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Jitendra Nath Pandey </td>
<td align="left"> Jitendra Nath Pandey </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-2320">HDFS-2320</a> </td>
<td align="left"> Make merged protocol changes from 0.20-append to 0.20-security compatible with previous releases. </td>
<td align="left"> Major </td>
<td align="left"> datanode, hdfs-client, namenode </td>
<td align="left"> Suresh Srinivas </td>
<td align="left"> Suresh Srinivas </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-2610">MAPREDUCE-2610</a> </td>
<td align="left"> Inconsistent API JobClient.getQueueAclsForCurrentUser </td>
<td align="left"> Major </td>
<td align="left"> client </td>
<td align="left"> Joep Rottinghuis </td>
<td align="left"> Joep Rottinghuis </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-2915">MAPREDUCE-2915</a> </td>
<td align="left"> LinuxTaskController does not work when JniBasedUnixGroupsNetgroupMapping or JniBasedUnixGroupsMapping is enabled </td>
<td align="left"> Major </td>
<td align="left"> task-controller </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-7610">HADOOP-7610</a> </td>
<td align="left"> /etc/profile.d does not exist on Debian </td>
<td align="left"> Major </td>
<td align="left"> scripts </td>
<td align="left"> Eric Yang </td>
<td align="left"> Eric Yang </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7599">HADOOP-7599</a> </td>
<td align="left"> Improve hadoop setup conf script to setup secure Hadoop cluster </td>
<td align="left"> Major </td>
<td align="left"> scripts </td>
<td align="left"> Eric Yang </td>
<td align="left"> Eric Yang </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7626">HADOOP-7626</a> </td>
<td align="left"> Allow overwrite of HADOOP_CLASSPATH and HADOOP_OPTS </td>
<td align="left"> Major </td>
<td align="left"> scripts </td>
<td align="left"> Eric Yang </td>
<td align="left"> Eric Yang </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-2549">MAPREDUCE-2549</a> </td>
<td align="left"> Potential resource leaks in HadoopServer.java, RunOnHadoopWizard.java and Environment.java </td>
<td align="left"> Major </td>
<td align="left"> contrib/eclipse-plugin, contrib/streaming </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-2328">HDFS-2328</a> </td>
<td align="left"> hftp throws NPE if security is not enabled on remote cluster </td>
<td align="left"> Critical </td>
<td align="left"> . </td>
<td align="left"> Daryn Sharp </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/HDFS-1779">HDFS-1779</a> </td>
<td align="left"> After NameNode restart , Clients can not read partial files even after client invokes Sync. </td>
<td align="left"> Major </td>
<td align="left"> datanode, namenode </td>
<td align="left"> Uma Maheswara Rao G </td>
<td align="left"> Uma Maheswara Rao G </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-2331">HDFS-2331</a> </td>
<td align="left"> Hdfs compilation fails </td>
<td align="left"> Major </td>
<td align="left"> hdfs-client </td>
<td align="left"> Abhijit Suresh Shingate </td>
<td align="left"> Abhijit Suresh Shingate </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-2333">HDFS-2333</a> </td>
<td align="left"> HDFS-2284 introduced 2 findbugs warnings on trunk </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Ivan Kelly </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-7625">HADOOP-7625</a> </td>
<td align="left"> TestDelegationToken is failing in 205 </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-7637">HADOOP-7637</a> </td>
<td align="left"> Fair scheduler configuration file is not bundled in RPM </td>
<td align="left"> Major </td>
<td align="left"> build </td>
<td align="left"> Eric Yang </td>
<td align="left"> Eric Yang </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7631">HADOOP-7631</a> </td>
<td align="left"> In mapred-site.xml, stream.tmpdir is mapped to ${mapred.temp.dir} which is undeclared. </td>
<td align="left"> Major </td>
<td align="left"> conf </td>
<td align="left"> Ramya Sunil </td>
<td align="left"> Eric Yang </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7630">HADOOP-7630</a> </td>
<td align="left"> hadoop-metrics2.properties should have a property *.period set to a default value foe metrics </td>
<td align="left"> Major </td>
<td align="left"> conf </td>
<td align="left"> Arpit Gupta </td>
<td align="left"> Eric Yang </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7633">HADOOP-7633</a> </td>
<td align="left"> log4j.properties should be added to the hadoop conf on deploy </td>
<td align="left"> Major </td>
<td align="left"> conf </td>
<td align="left"> Arpit Gupta </td>
<td align="left"> Eric Yang </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7644">HADOOP-7644</a> </td>
<td align="left"> Fix the delegation token tests to use the new style renewers </td>
<td align="left"> Blocker </td>
<td align="left"> security </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/MAPREDUCE-3076">MAPREDUCE-3076</a> </td>
<td align="left"> TestSleepJob fails </td>
<td align="left"> Blocker </td>
<td align="left"> test </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-7645">HADOOP-7645</a> </td>
<td align="left"> HTTP auth tests requiring Kerberos infrastructure are not disabled on branch-0.20-security </td>
<td align="left"> Blocker </td>
<td align="left"> security </td>
<td align="left"> Aaron T. Myers </td>
<td align="left"> Jitendra Nath Pandey </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7674">HADOOP-7674</a> </td>
<td align="left"> TestKerberosName fails in 20 branch. </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Jitendra Nath Pandey </td>
<td align="left"> Jitendra Nath Pandey </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-2342">HDFS-2342</a> </td>
<td align="left"> TestSleepJob and TestHdfsProxy broken after HDFS-2284 </td>
<td align="left"> Blocker </td>
<td align="left"> build </td>
<td align="left"> Kihwal Lee </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/HDFS-2325">HDFS-2325</a> </td>
<td align="left"> Fuse-DFS fails to build on Hadoop 20.203.0 </td>
<td align="left"> Blocker </td>
<td align="left"> fuse-dfs, libhdfs </td>
<td align="left"> Charles Earl </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-7679">HADOOP-7679</a> </td>
<td align="left"> log4j.properties templates does not define mapred.jobsummary.logger </td>
<td align="left"> Major </td>
<td align="left"> conf </td>
<td align="left"> Ramya Sunil </td>
<td align="left"> Ramya Sunil </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-2359">HDFS-2359</a> </td>
<td align="left"> NPE found in Datanode log while Disk failed during different HDFS operation </td>
<td align="left"> Major </td>
<td align="left"> datanode </td>
<td align="left"> Rajit Saha </td>
<td align="left"> Jonathan Eagles </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-2375">HDFS-2375</a> </td>
<td align="left"> TestFileAppend4 fails in 0.20.205 branch </td>
<td align="left"> Blocker </td>
<td align="left"> hdfs-client </td>
<td align="left"> Suresh Srinivas </td>
<td align="left"> Suresh Srinivas </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-3081">MAPREDUCE-3081</a> </td>
<td align="left"> Change the name format for hadoop core and vaidya jar to be hadoop-{core/vaidya}-{version}.jar in vaidya.sh </td>
<td align="left"> Major </td>
<td align="left"> contrib/vaidya </td>
<td align="left"> vitthal (Suhas) Gogate </td>
<td align="left"> </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-2373">HDFS-2373</a> </td>
<td align="left"> Commands using webhdfs and hftp print unnecessary debug information on the console with security enabled </td>
<td align="left"> Major </td>
<td align="left"> webhdfs </td>
<td align="left"> Arpit Gupta </td>
<td align="left"> Arpit Gupta </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-2368">HDFS-2368</a> </td>
<td align="left"> defaults created for web keytab and principal, these properties should not have defaults </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Arpit Gupta </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/HDFS-2361">HDFS-2361</a> </td>
<td align="left"> hftp is broken </td>
<td align="left"> Critical </td>
<td align="left"> namenode </td>
<td align="left"> Rajit Saha </td>
<td align="left"> Jitendra Nath Pandey </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7683">HADOOP-7683</a> </td>
<td align="left"> hdfs-site.xml template has properties that are not used in 20 </td>
<td align="left"> Minor </td>
<td align="left"> . </td>
<td align="left"> Arpit Gupta </td>
<td align="left"> Arpit Gupta </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-1260">HDFS-1260</a> </td>
<td align="left"> 0.20: Block lost when multiple DNs trying to recover it to different genstamps </td>
<td align="left"> Critical </td>
<td align="left"> . </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/HDFS-1186">HDFS-1186</a> </td>
<td align="left"> 0.20: DNs should interrupt writers at start of recovery </td>
<td align="left"> Blocker </td>
<td align="left"> datanode </td>
<td align="left"> Todd Lipcon </td>
<td align="left"> Todd Lipcon </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-1218">HDFS-1218</a> </td>
<td align="left"> 20 append: Blocks recovered on startup should be treated with lower priority during block synchronization </td>
<td align="left"> Critical </td>
<td align="left"> datanode </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-7691">HADOOP-7691</a> </td>
<td align="left"> hadoop deb pkg should take a diff group id </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Giridharan Kesavan </td>
<td align="left"> Eric Yang </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7603">HADOOP-7603</a> </td>
<td align="left"> Set default hdfs, mapred uid, and hadoop group gid for RPM packages </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Eric Yang </td>
<td align="left"> Eric Yang </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7658">HADOOP-7658</a> </td>
<td align="left"> to fix hadoop config template </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Giridharan Kesavan </td>
<td align="left"> Eric Yang </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7684">HADOOP-7684</a> </td>
<td align="left"> jobhistory server and secondarynamenode should have init.d script </td>
<td align="left"> Major </td>
<td align="left"> scripts </td>
<td align="left"> Eric Yang </td>
<td align="left"> Eric Yang </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-3112">MAPREDUCE-3112</a> </td>
<td align="left"> Calling hadoop cli inside mapreduce job leads to errors </td>
<td align="left"> Major </td>
<td align="left"> contrib/streaming </td>
<td align="left"> Eric Yang </td>
<td align="left"> Eric Yang </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7715">HADOOP-7715</a> </td>
<td align="left"> see log4j Error when running mr jobs and certain dfs calls </td>
<td align="left"> Major </td>
<td align="left"> conf </td>
<td align="left"> Arpit Gupta </td>
<td align="left"> Eric Yang </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7711">HADOOP-7711</a> </td>
<td align="left"> hadoop-env.sh generated from templates has duplicate info </td>
<td align="left"> Major </td>
<td align="left"> conf </td>
<td align="left"> Arpit Gupta </td>
<td align="left"> Arpit Gupta </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7681">HADOOP-7681</a> </td>
<td align="left"> log4j.properties is missing properties for security audit and hdfs audit should be changed to info </td>
<td align="left"> Minor </td>
<td align="left"> conf </td>
<td align="left"> Arpit Gupta </td>
<td align="left"> Arpit Gupta </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7708">HADOOP-7708</a> </td>
<td align="left"> config generator does not update the properties file if on exists already </td>
<td align="left"> Critical </td>
<td align="left"> conf </td>
<td align="left"> Arpit Gupta </td>
<td align="left"> Eric Yang </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-2358">HDFS-2358</a> </td>
<td align="left"> NPE when the default filesystem&#x2019;s uri has no authority </td>
<td align="left"> Major </td>
<td align="left"> namenode </td>
<td align="left"> Rajit Saha </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-2392">HDFS-2392</a> </td>
<td align="left"> Dist with hftp is failing again </td>
<td align="left"> Critical </td>
<td align="left"> namenode </td>
<td align="left"> Rajit Saha </td>
<td align="left"> Daryn Sharp </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-2408">HDFS-2408</a> </td>
<td align="left"> DFSClient#getNumCurrentReplicas is package private in 205 but public in branch-0.20-append </td>
<td align="left"> Blocker </td>
<td align="left"> hdfs-client </td>
<td align="left"> stack </td>
<td align="left"> stack </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7721">HADOOP-7721</a> </td>
<td align="left"> dfs.web.authentication.kerberos.principal expects the full hostname and does not replace _HOST with the hostname </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Arpit Gupta </td>
<td align="left"> Jitendra Nath Pandey </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-2405">HDFS-2405</a> </td>
<td align="left"> hadoop dfs command with webhdfs fails on secure hadoop </td>
<td align="left"> Critical </td>
<td align="left"> webhdfs </td>
<td align="left"> Arpit Gupta </td>
<td align="left"> Jitendra Nath Pandey </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7724">HADOOP-7724</a> </td>
<td align="left"> hadoop-setup-conf.sh should put proxy user info into the core-site.xml </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Giridharan Kesavan </td>
<td align="left"> Arpit Gupta </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-2764">MAPREDUCE-2764</a> </td>
<td align="left"> Fix renewal of dfs delegation tokens </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Daryn Sharp </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-7602">HADOOP-7602</a> </td>
<td align="left"> wordcount, sort etc on har files fails with NPE </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> John George </td>
<td align="left"> John George </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-7649">HADOOP-7649</a> </td>
<td align="left"> TestMapredGroupMappingServiceRefresh and TestRefreshUserMappings fail after HADOOP-7625 </td>
<td align="left"> Blocker </td>
<td align="left"> security, test </td>
<td align="left"> Kihwal Lee </td>
<td align="left"> Jitendra Nath Pandey </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-2411">HDFS-2411</a> </td>
<td align="left"> with webhdfs enabled in secure mode the auth to local mappings are not being respected. </td>
<td align="left"> Major </td>
<td align="left"> webhdfs </td>
<td align="left"> Arpit Gupta </td>
<td align="left"> Jitendra Nath Pandey </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-1197">HDFS-1197</a> </td>
<td align="left"> Blocks are considered &#x201c;complete&#x201d; prematurely after commitBlockSynchronization or DN restart </td>
<td align="left"> Major </td>
<td align="left"> datanode, hdfs-client, namenode </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-7615">HADOOP-7615</a> </td>
<td align="left"> Binary layout does not put share/hadoop/contrib/*.jar into the class path </td>
<td align="left"> Major </td>
<td align="left"> scripts </td>
<td align="left"> Eric Yang </td>
<td align="left"> Eric Yang </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-2300">HDFS-2300</a> </td>
<td align="left"> TestFileAppend4 and TestMultiThreadedSync fail on 20.append and 20-security. </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Jitendra Nath Pandey </td>
<td align="left"> Jitendra Nath Pandey </td></tr>
</tbody>
</table></div>
<div class="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/HDFS-1242">HDFS-1242</a> </td>
<td align="left"> 0.20 append: Add test for appendFile() race solved in HDFS-142 </td>
<td align="left"> Major </td>
<td align="left"> . </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/HDFS-1252">HDFS-1252</a> </td>
<td align="left"> TestDFSConcurrentFileOperations broken in 0.20-appendj </td>
<td align="left"> Major </td>
<td align="left"> test </td>
<td align="left"> Todd Lipcon </td>
<td align="left"> Todd Lipcon </td></tr>
</tbody>
</table></div>
<div class="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/HDFS-561">HDFS-561</a> </td>
<td align="left"> Fix write pipeline READ_TIMEOUT </td>
<td align="left"> Major </td>
<td align="left"> datanode, hdfs-client </td>
<td align="left"> Kan Zhang </td>
<td align="left"> Kan Zhang </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-1057">HDFS-1057</a> </td>
<td align="left"> Concurrent readers hit ChecksumExceptions if following a writer to very end of file </td>
<td align="left"> Blocker </td>
<td align="left"> datanode </td>
<td align="left"> Todd Lipcon </td>
<td align="left"> sam rash </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-2284">HDFS-2284</a> </td>
<td align="left"> Write Http access to HDFS </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Sanjay Radia </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/HDFS-2317">HDFS-2317</a> </td>
<td align="left"> Read access to HDFS using HTTP REST </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/HDFS-2338">HDFS-2338</a> </td>
<td align="left"> Configuration option to enable/disable webhdfs. </td>
<td align="left"> Major </td>
<td align="left"> webhdfs </td>
<td align="left"> Jitendra Nath Pandey </td>
<td align="left"> Jitendra Nath Pandey </td></tr>
<tr class="a">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-2318">HDFS-2318</a> </td>
<td align="left"> Provide authentication to webhdfs using SPNEGO </td>
<td align="left"> Major </td>
<td align="left"> webhdfs </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/HDFS-2340">HDFS-2340</a> </td>
<td align="left"> Support getFileBlockLocations and getDelegationToken in webhdfs </td>
<td align="left"> Major </td>
<td align="left"> webhdfs </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/MAPREDUCE-2928">MAPREDUCE-2928</a> </td>
<td align="left"> MR-2413 improvements </td>
<td align="left"> Major </td>
<td align="left"> tasktracker </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-2356">HDFS-2356</a> </td>
<td align="left"> webhdfs: support case insensitive query parameter names </td>
<td align="left"> Major </td>
<td align="left"> webhdfs </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/HDFS-2366">HDFS-2366</a> </td>
<td align="left"> webhdfs throws a npe when ugi is null from getDelegationToken </td>
<td align="left"> Major </td>
<td align="left"> webhdfs </td>
<td align="left"> Arpit Gupta </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/HDFS-2348">HDFS-2348</a> </td>
<td align="left"> Support getContentSummary and getFileChecksum in webhdfs </td>
<td align="left"> Major </td>
<td align="left"> webhdfs </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/HDFS-2395">HDFS-2395</a> </td>
<td align="left"> webhdfs api&#x2019;s should return a root element in the json response </td>
<td align="left"> Critical </td>
<td align="left"> webhdfs </td>
<td align="left"> Arpit Gupta </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/HDFS-2403">HDFS-2403</a> </td>
<td align="left"> The renewer in NamenodeWebHdfsMethods.generateDelegationToken(..) is not used </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/HDFS-2404">HDFS-2404</a> </td>
<td align="left"> webhdfs liststatus json response is not correct </td>
<td align="left"> Major </td>
<td align="left"> webhdfs </td>
<td align="left"> Arpit Gupta </td>
<td align="left"> Suresh Srinivas </td></tr>
<tr class="b">
<td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-2385">HDFS-2385</a> </td>
<td align="left"> Support delegation token renewal in webhdfs </td>
<td align="left"> Major </td>
<td align="left"> webhdfs </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/MAPREDUCE-2780">MAPREDUCE-2780</a> </td>
<td align="left"> Standardize the value of token service </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Daryn Sharp </td>
<td align="left"> Daryn Sharp </td></tr>
</tbody>
</table></div>
<div class="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/HDFS-1795">HDFS-1795</a> </td>
<td align="left"> Port 0.20-append changes onto 0.20-security-203 </td>
<td align="left"> Major </td>
<td align="left"> . </td>
<td align="left"> Andrew Purtell </td>
<td align="left"> </td></tr>
</tbody>
</table></div></div>
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