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| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| <h1>Apache Hadoop Changelog</h1> |
| <div class="section"> |
| <h2><a name="Release_0.19.2_-_2009-07-23"></a>Release 0.19.2 - 2009-07-23</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/HADOOP-5332">HADOOP-5332</a> </td> |
| <td align="left"> Make support for file append API configurable </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> . </td> |
| <td align="left"> Nigel Daley </td> |
| <td align="left"> dhruba borthakur </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/HADOOP-5379">HADOOP-5379</a> </td> |
| <td align="left"> Throw exception instead of writing to System.err when there is a CRC error on CBZip2InputStream </td> |
| <td align="left"> Minor </td> |
| <td align="left"> io </td> |
| <td align="left"> Rodrigo Schmidt </td> |
| <td align="left"> Rodrigo Schmidt </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/HADOOP-5269">HADOOP-5269</a> </td> |
| <td align="left"> TaskTracker.runningTasks holding FAILED_UNCLEAN and KILLED_UNCLEAN taskStatuses forever in some cases. </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="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-5233">HADOOP-5233</a> </td> |
| <td align="left"> Reducer not Succeded after 100% </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-5247">HADOOP-5247</a> </td> |
| <td align="left"> NPEs in JobTracker and JobClient when mapred.jobtracker.completeuserjobs.maximum is set to zero. </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> . </td> |
| <td align="left"> Vinod Kumar Vavilapalli </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-5285">HADOOP-5285</a> </td> |
| <td align="left"> JobTracker hangs for long periods of time </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> . </td> |
| <td align="left"> Vinod Kumar Vavilapalli </td> |
| <td align="left"> Devaraj Das </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-5241">HADOOP-5241</a> </td> |
| <td align="left"> Reduce tasks get stuck because of over-estimated task size (regression from 0.18) </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> . </td> |
| <td align="left"> Andy Pavlo </td> |
| <td align="left"> Sharad Agarwal </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-5280">HADOOP-5280</a> </td> |
| <td align="left"> When expiring a lost launched task, JT doesn’t remove the attempt from the taskidToTIPMap. </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> . </td> |
| <td align="left"> Vinod Kumar Vavilapalli </td> |
| <td align="left"> Devaraj Das </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-5154">HADOOP-5154</a> </td> |
| <td align="left"> 4-way deadlock in FairShare scheduler </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> . </td> |
| <td align="left"> Vinod Kumar Vavilapalli </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-5146">HADOOP-5146</a> </td> |
| <td align="left"> LocalDirAllocator misses files on the local filesystem </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> . </td> |
| <td align="left"> Arun C Murthy </td> |
| <td align="left"> Devaraj Das </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-5326">HADOOP-5326</a> </td> |
| <td align="left"> bzip2 codec (CBZip2OutputStream) creates corrupted output file for some inputs </td> |
| <td align="left"> Major </td> |
| <td align="left"> io </td> |
| <td align="left"> Rodrigo Schmidt </td> |
| <td align="left"> Rodrigo Schmidt </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-4638">HADOOP-4638</a> </td> |
| <td align="left"> Exception thrown in/from RecoveryManager.recover() should be caught and handled </td> |
| <td align="left"> Blocker </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-5384">HADOOP-5384</a> </td> |
| <td align="left"> DataNodeCluster should not create blocks with generationStamp == 1 </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> test </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-5376">HADOOP-5376</a> </td> |
| <td align="left"> JobInProgress.obtainTaskCleanupTask() throws an ArrayIndexOutOfBoundsException </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> . </td> |
| <td align="left"> Vinod Kumar Vavilapalli </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-5421">HADOOP-5421</a> </td> |
| <td align="left"> HADOOP-4638 has broken 0.19 compilation </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> . </td> |
| <td align="left"> Amar Kamat </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-5392">HADOOP-5392</a> </td> |
| <td align="left"> JobTracker crashes during recovery if job files are garbled </td> |
| <td align="left"> Blocker </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-5333">HADOOP-5333</a> </td> |
| <td align="left"> The libhdfs append API is not coded correctly </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-3998">HADOOP-3998</a> </td> |
| <td align="left"> Got an exception from ClientFinalizer when the JT is terminated </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> . </td> |
| <td align="left"> Amar Kamat </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-5440">HADOOP-5440</a> </td> |
| <td align="left"> Successful taskid are not removed from TaskMemoryManager </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="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-5446">HADOOP-5446</a> </td> |
| <td align="left"> TaskTracker metrics are disabled </td> |
| <td align="left"> Major </td> |
| <td align="left"> metrics </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-5449">HADOOP-5449</a> </td> |
| <td align="left"> Verify if JobHistory.HistoryCleaner works as expected </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> . </td> |
| <td align="left"> Amar Kamat </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-5465">HADOOP-5465</a> </td> |
| <td align="left"> Blocks remain under-replicated </td> |
| <td align="left"> Blocker </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-5479">HADOOP-5479</a> </td> |
| <td align="left"> NameNode should not send empty block replication request to DataNode </td> |
| <td align="left"> Critical </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-5522">HADOOP-5522</a> </td> |
| <td align="left"> Document job setup/cleaup tasks and task cleanup tasks in mapred tutorial </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-5549">HADOOP-5549</a> </td> |
| <td align="left"> ReplicationMonitor should schedule both replication and deletion work in one iteration </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-5554">HADOOP-5554</a> </td> |
| <td align="left"> DataNodeCluster should create blocks with the same generation stamp as the blocks created in CreateEditsLog </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-5557">HADOOP-5557</a> </td> |
| <td align="left"> Two minor problems in TestOverReplicatedBlocks </td> |
| <td align="left"> Minor </td> |
| <td align="left"> test </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-5231">HADOOP-5231</a> </td> |
| <td align="left"> Negative number of maps in cluster summary </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-4719">HADOOP-4719</a> </td> |
| <td align="left"> The ls shell command documentation is out-dated </td> |
| <td align="left"> Major </td> |
| <td align="left"> documentation </td> |
| <td align="left"> Tsz Wo Nicholas Sze </td> |
| <td align="left"> Ravi Phulari </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-5374">HADOOP-5374</a> </td> |
| <td align="left"> NPE in JobTracker.getTasksToSave() method </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Vinod Kumar Vavilapalli </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-4780">HADOOP-4780</a> </td> |
| <td align="left"> Task Tracker burns a lot of cpu in calling getLocalCache </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Runping Qi </td> |
| <td align="left"> He Yongqiang </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-5551">HADOOP-5551</a> </td> |
| <td align="left"> Namenode permits directory destruction on overwrite </td> |
| <td align="left"> Critical </td> |
| <td align="left"> . </td> |
| <td align="left"> Brian Bockelman </td> |
| <td align="left"> Brian Bockelman </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-5644">HADOOP-5644</a> </td> |
| <td align="left"> Namnode is stuck in safe mode </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </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/HADOOP-5671">HADOOP-5671</a> </td> |
| <td align="left"> DistCp.sameFile(..) should return true if src fs does not support checksum </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-5213">HADOOP-5213</a> </td> |
| <td align="left"> BZip2CompressionOutputStream NullPointerException </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> io </td> |
| <td align="left"> Zheng Shao </td> |
| <td align="left"> Zheng Shao </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-5579">HADOOP-5579</a> </td> |
| <td align="left"> libhdfs does not set errno correctly </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Brian Bockelman </td> |
| <td align="left"> Brian Bockelman </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-5728">HADOOP-5728</a> </td> |
| <td align="left"> FSEditLog.printStatistics may cause IndexOutOfBoundsException </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Wang Xu </td> |
| <td align="left"> Wang Xu </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-5816">HADOOP-5816</a> </td> |
| <td align="left"> ArrayIndexOutOfBoundsException when using KeyFieldBasedComparator </td> |
| <td align="left"> Minor </td> |
| <td align="left"> . </td> |
| <td align="left"> Min Zhou </td> |
| <td align="left"> He Yongqiang </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-5951">HADOOP-5951</a> </td> |
| <td align="left"> StorageInfo needs Apache license header. </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </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/HADOOP-6017">HADOOP-6017</a> </td> |
| <td align="left"> NameNode and SecondaryNameNode fail to restart because of abnormal filenames. </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> . </td> |
| <td align="left"> Raghu Angadi </td> |
| <td align="left"> Tsz Wo Nicholas Sze </td></tr> |
| </tbody> |
| </table></div></div> |
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