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| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| --> |
| <h1>Apache Hadoop Changelog</h1> |
| <div class="section"> |
| <h2><a name="Release_0.9.0_-_2006-12-01"></a>Release 0.9.0 - 2006-12-01</h2> |
| <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/HADOOP-611">HADOOP-611</a> </td> |
| <td align="left"> SequenceFile.Sorter should have a merge method that returns an iterator </td> |
| <td align="left"> Major </td> |
| <td align="left"> io </td> |
| <td align="left"> Owen O’Malley </td> |
| <td align="left"> Devaraj Das </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-655">HADOOP-655</a> </td> |
| <td align="left"> remove deprecations </td> |
| <td align="left"> Minor </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-565">HADOOP-565</a> </td> |
| <td align="left"> Upgrade Jetty to 6.x </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Owen O’Malley </td> |
| <td align="left"> Sanjay Dahiya </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-688">HADOOP-688</a> </td> |
| <td align="left"> move dfs administrative interfaces to a separate command </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-613">HADOOP-613</a> </td> |
| <td align="left"> The final merge on the reduces should feed the reduce directly </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Owen O’Malley </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-661">HADOOP-661</a> </td> |
| <td align="left"> JobConf for a job should be viewable from the web/ui </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Owen O’Malley </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-489">HADOOP-489</a> </td> |
| <td align="left"> Seperating user logs from system logs in map reduce </td> |
| <td align="left"> Minor </td> |
| <td align="left"> . </td> |
| <td align="left"> Mahadev konar </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-668">HADOOP-668</a> </td> |
| <td align="left"> improvement to DFS browsing WI </td> |
| <td align="left"> Minor </td> |
| <td align="left"> . </td> |
| <td align="left"> Yoram Arnon </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-538">HADOOP-538</a> </td> |
| <td align="left"> Implement a nio’s ‘direct buffer’ based wrapper over zlib to improve performance of java.util.zip.{De|In}flater as a ‘custom codec’ </td> |
| <td align="left"> Major </td> |
| <td align="left"> io </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-721">HADOOP-721</a> </td> |
| <td align="left"> jobconf.jsp shouldn’t find the jobconf.xsl via http </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Owen O’Malley </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-725">HADOOP-725</a> </td> |
| <td align="left"> chooseTargets method in FSNamesystem is very inefficient </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Milind Bhandarkar </td> |
| <td align="left"> Milind Bhandarkar </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-677">HADOOP-677</a> </td> |
| <td align="left"> RPC should send a fixed header and version at the start of connection </td> |
| <td align="left"> Major </td> |
| <td align="left"> ipc </td> |
| <td align="left"> Owen O’Malley </td> |
| <td align="left"> Owen O’Malley </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-76">HADOOP-76</a> </td> |
| <td align="left"> Implement speculative re-execution of reduces </td> |
| <td align="left"> Minor </td> |
| <td align="left"> . </td> |
| <td align="left"> Doug Cutting </td> |
| <td align="left"> Sanjay Dahiya </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-689">HADOOP-689</a> </td> |
| <td align="left"> hadoop should provide a common way to wrap instances with different types into one type </td> |
| <td align="left"> Major </td> |
| <td align="left"> io </td> |
| <td align="left"> Feng Jiang </td> |
| <td align="left"> </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-682">HADOOP-682</a> </td> |
| <td align="left"> hadoop namenode -format doesnt work anymore if target directory doesnt exist </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Sanjay Dahiya </td> |
| <td align="left"> </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-687">HADOOP-687</a> </td> |
| <td align="left"> Upgrade to Jetty 6 does not patch bin/hadoop </td> |
| <td align="left"> Critical </td> |
| <td align="left"> scripts </td> |
| <td align="left"> Sameer Paranjpye </td> |
| <td align="left"> Sameer Paranjpye </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-683">HADOOP-683</a> </td> |
| <td align="left"> bin/hadoop.sh doesn’t work for /bin/dash (eg ubuntu 6.10b) </td> |
| <td align="left"> Trivial </td> |
| <td align="left"> scripts </td> |
| <td align="left"> James Todd </td> |
| <td align="left"> </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-604">HADOOP-604</a> </td> |
| <td align="left"> DataNodes get NullPointerException and become unresponsive on 50010 </td> |
| <td align="left"> Major </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-459">HADOOP-459</a> </td> |
| <td align="left"> libhdfs leaks memory when writing to files </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Christian Kunz </td> |
| <td align="left"> Sameer Paranjpye </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-694">HADOOP-694</a> </td> |
| <td align="left"> jobtracker expireluanching tasks throws out Nullpointer exceptions </td> |
| <td align="left"> Minor </td> |
| <td align="left"> . </td> |
| <td align="left"> Mahadev konar </td> |
| <td align="left"> Mahadev konar </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-637">HADOOP-637</a> </td> |
| <td align="left"> ipc.Server has memory leak – serious issue for namenode server </td> |
| <td align="left"> Major </td> |
| <td align="left"> ipc </td> |
| <td align="left"> Christian Kunz </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-696">HADOOP-696</a> </td> |
| <td align="left"> TestTextInputFormat fails on some platforms due to non-determinism in format.getSplits() </td> |
| <td align="left"> Minor </td> |
| <td align="left"> test </td> |
| <td align="left"> Sameer Paranjpye </td> |
| <td align="left"> Sameer Paranjpye </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-708">HADOOP-708</a> </td> |
| <td align="left"> test-libhdfs.sh does not properly capture and return error status </td> |
| <td align="left"> Major </td> |
| <td align="left"> test </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-646">HADOOP-646</a> </td> |
| <td align="left"> name node server does not load large (> 2^31 bytes) edits file </td> |
| <td align="left"> Critical </td> |
| <td align="left"> . </td> |
| <td align="left"> Christian Kunz </td> |
| <td align="left"> Milind Bhandarkar </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-705">HADOOP-705</a> </td> |
| <td align="left"> IOException: job.xml already exists </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Nigel Daley </td> |
| <td align="left"> Mahadev konar </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-712">HADOOP-712</a> </td> |
| <td align="left"> Record-IO XML serialization is broken for control characters </td> |
| <td align="left"> Major </td> |
| <td align="left"> record </td> |
| <td align="left"> Milind Bhandarkar </td> |
| <td align="left"> Milind Bhandarkar </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-716">HADOOP-716</a> </td> |
| <td align="left"> Javadoc warning in SequenceFile.java </td> |
| <td align="left"> Minor </td> |
| <td align="left"> io </td> |
| <td align="left"> Devaraj Das </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-715">HADOOP-715</a> </td> |
| <td align="left"> build.xml sets up wrong ‘hadoop.log.dir’ property for ‘ant test’ </td> |
| <td align="left"> Minor </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-722">HADOOP-722</a> </td> |
| <td align="left"> native-hadoop deficiencies </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-710">HADOOP-710</a> </td> |
| <td align="left"> block size isn’t honored </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Nigel Daley </td> |
| <td align="left"> Milind Bhandarkar </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-695">HADOOP-695</a> </td> |
| <td align="left"> Unexpected NPE from the next method of StreamLineRecordReader fails map/reduce jobs </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-645">HADOOP-645</a> </td> |
| <td align="left"> Map-reduce task does not finish correctly when -reducer NONE is specified </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-729">HADOOP-729</a> </td> |
| <td align="left"> packageNativeHadoop.sh has non-standard sh code </td> |
| <td align="left"> Critical </td> |
| <td align="left"> scripts </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-652">HADOOP-652</a> </td> |
| <td align="left"> Not all Datastructures are updated when a block is deleted </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Raghu Angadi </td> |
| <td align="left"> </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-723">HADOOP-723</a> </td> |
| <td align="left"> Race condition exists in the method MapOutputLocation.getFile </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Devaraj Das </td> |
| <td align="left"> Owen O’Malley </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-447">HADOOP-447</a> </td> |
| <td align="left"> DistributedFileSystem.getBlockSize(Path) does not resolve absolute path </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Benjamin Reed </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-724">HADOOP-724</a> </td> |
| <td align="left"> bin/hadoop:111 uses java directly, it should use JAVA_HOME </td> |
| <td align="left"> Minor </td> |
| <td align="left"> scripts </td> |
| <td align="left"> Sanjay Dahiya </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-733">HADOOP-733</a> </td> |
| <td align="left"> dfs shell has inconsistent exit codes </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Christian Kunz </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-734">HADOOP-734</a> </td> |
| <td align="left"> Link to the FAQ in the “Documentation” section of the hadoop website </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-709">HADOOP-709</a> </td> |
| <td align="left"> streaming job with Control characters in the command causes runtime exception in the job tracker </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-699">HADOOP-699</a> </td> |
| <td align="left"> “Browse the filesystem” link on Name Node redirects to wrong port on 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="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-736">HADOOP-736</a> </td> |
| <td align="left"> Roll back Jetty6.0.1 to Jetty5.1.4 </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Devaraj Das </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-739">HADOOP-739</a> </td> |
| <td align="left"> TestIPC occassionally fails with BindException </td> |
| <td align="left"> Minor </td> |
| <td align="left"> test </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-741">HADOOP-741</a> </td> |
| <td align="left"> Fix average progress calculation in speculative execution of maps + fix pending issues in speculative execution of reduces </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Sanjay Dahiya </td> |
| <td align="left"> Sanjay Dahiya </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-749">HADOOP-749</a> </td> |
| <td align="left"> The jobfailures.jsp gets a NullPointerException after a task tracker has been lost </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Owen O’Malley </td> |
| <td align="left"> Owen O’Malley </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-747">HADOOP-747</a> </td> |
| <td align="left"> RecordIO compiler does not produce correct Java code when buffer is used as key or value in map </td> |
| <td align="left"> Major </td> |
| <td align="left"> record </td> |
| <td align="left"> Milind Bhandarkar </td> |
| <td align="left"> Milind Bhandarkar </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-698">HADOOP-698</a> </td> |
| <td align="left"> When DFS client fails to read from a datanode, the failed datanode is not excluded from target reselection </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Hairong Kuang </td> |
| <td align="left"> Milind Bhandarkar </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-430">HADOOP-430</a> </td> |
| <td align="left"> http server should die if the Datanode fails. </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Konstantin Shvachko </td> |
| <td align="left"> Wendy Chien </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-750">HADOOP-750</a> </td> |
| <td align="left"> race condition on stalled map output fetches </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Owen O’Malley </td> |
| <td align="left"> Owen O’Malley </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-728">HADOOP-728</a> </td> |
| <td align="left"> Map-reduce task does not produce correct results when -reducer NONE is specified through streaming </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> dhruba borthakur </td> |
| <td align="left"> Sanjay Dahiya </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/HADOOP-382">HADOOP-382</a> </td> |
| <td align="left"> add a unit test for multiple datanodes in a machine </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Yoram Arnon </td> |
| <td align="left"> Milind Bhandarkar </td></tr> |
| </tbody> |
| </table></div></div> |
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