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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_0.20.2_-_2010-02-16"></a>Release 0.20.2 - 2010-02-16</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-793">HDFS-793</a> </td> |
| <td align="left"> DataNode should first receive the whole packet ack message before it constructs and sends its own ack message for the packet </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> datanode </td> |
| <td align="left"> Hairong Kuang </td> |
| <td align="left"> Hairong Kuang </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/MAPREDUCE-623">MAPREDUCE-623</a> </td> |
| <td align="left"> Resolve javac warnings in mapred </td> |
| <td align="left"> Major </td> |
| <td align="left"> build </td> |
| <td align="left"> Jothi Padmanabhan </td> |
| <td align="left"> Jothi Padmanabhan </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-1849">HADOOP-1849</a> </td> |
| <td align="left"> IPC server max queue size should be configurable </td> |
| <td align="left"> Major </td> |
| <td align="left"> ipc </td> |
| <td align="left"> Raghu Angadi </td> |
| <td align="left"> Konstantin Shvachko </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-5759">HADOOP-5759</a> </td> |
| <td align="left"> IllegalArgumentException when CombineFileInputFormat is used as job InputFormat </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/MAPREDUCE-826">MAPREDUCE-826</a> </td> |
| <td align="left"> harchive doesn’t use ToolRunner / harchive returns 0 even if the job fails with exception </td> |
| <td align="left"> Trivial </td> |
| <td align="left"> harchive </td> |
| <td align="left"> Koji Noguchi </td> |
| <td align="left"> Koji Noguchi </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-112">MAPREDUCE-112</a> </td> |
| <td align="left"> Reduce Input Records and Reduce Output Records counters are not being set when using the new Mapreduce reducer API </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> . </td> |
| <td align="left"> Jothi Padmanabhan </td> |
| <td align="left"> Jothi Padmanabhan </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-6231">HADOOP-6231</a> </td> |
| <td align="left"> Allow caching of filesystem instances to be disabled on a per-instance basis </td> |
| <td align="left"> Major </td> |
| <td align="left"> fs </td> |
| <td align="left"> Tom White </td> |
| <td align="left"> Ben Slusky </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-979">MAPREDUCE-979</a> </td> |
| <td align="left"> JobConf.getMemoryFor{Map|Reduce}Task doesn’t fallback to newer config knobs when mapred.taskmaxvmem is set to DISABLED_MEMORY_LIMIT of -1 </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> jobtracker, tasktracker </td> |
| <td align="left"> Arun C Murthy </td> |
| <td align="left"> Sreekanth Ramakrishnan </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-677">HDFS-677</a> </td> |
| <td align="left"> Rename failure due to quota results in deletion of src directory </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> namenode </td> |
| <td align="left"> Suresh Srinivas </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-579">HDFS-579</a> </td> |
| <td align="left"> HADOOP-3792 update of DfsTask incomplete </td> |
| <td align="left"> Major </td> |
| <td align="left"> hdfs-client </td> |
| <td align="left"> Christian Kunz </td> |
| <td align="left"> Christian Kunz </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-1070">MAPREDUCE-1070</a> </td> |
| <td align="left"> Deadlock in FairSchedulerServlet </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="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-6097">HADOOP-6097</a> </td> |
| <td align="left"> Multiple bugs w/ Hadoop archives </td> |
| <td align="left"> Major </td> |
| <td align="left"> fs </td> |
| <td align="left"> Ben Slusky </td> |
| <td align="left"> Ben Slusky </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-723">HDFS-723</a> </td> |
| <td align="left"> Deadlock in DFSClient#DFSOutputStream </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/HDFS-732">HDFS-732</a> </td> |
| <td align="left"> HDFS files are ending up truncated </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> hdfs-client </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/MAPREDUCE-1163">MAPREDUCE-1163</a> </td> |
| <td align="left"> hdfsJniHelper.h: Yahoo! specific paths are encoded </td> |
| <td align="left"> Trivial </td> |
| <td align="left"> . </td> |
| <td align="left"> Allen Wittenauer </td> |
| <td align="left"> Allen Wittenauer </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-761">HDFS-761</a> </td> |
| <td align="left"> Failure to process rename operation from edits log due to quota verification </td> |
| <td align="left"> Major </td> |
| <td align="left"> 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-1068">MAPREDUCE-1068</a> </td> |
| <td align="left"> In hadoop-0.20.0 streaming job do not throw proper verbose error message if file is not present </td> |
| <td align="left"> Major </td> |
| <td align="left"> contrib/streaming </td> |
| <td align="left"> Peeyush Bishnoi </td> |
| <td align="left"> Amareshwari Sriramadasu </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-596">HDFS-596</a> </td> |
| <td align="left"> Memory leak in libhdfs: hdfsFreeFileInfo() in libhdfs does not free memory for mOwner and mGroup </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> fuse-dfs </td> |
| <td align="left"> Zhang Bingjun </td> |
| <td align="left"> Zhang Bingjun </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-1147">MAPREDUCE-1147</a> </td> |
| <td align="left"> Map output records counter missing for map-only jobs in new API </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> . </td> |
| <td align="left"> Chris Douglas </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-6269">HADOOP-6269</a> </td> |
| <td align="left"> Missing synchronization for defaultResources in Configuration.addResource </td> |
| <td align="left"> Major </td> |
| <td align="left"> conf </td> |
| <td align="left"> Todd Lipcon </td> |
| <td align="left"> Sreekanth Ramakrishnan </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-1182">MAPREDUCE-1182</a> </td> |
| <td align="left"> Reducers fail with OutOfMemoryError while copying Map outputs </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> . </td> |
| <td align="left"> Chandra Prakash Bhagtani </td> |
| <td align="left"> Chandra Prakash Bhagtani </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-781">HDFS-781</a> </td> |
| <td align="left"> Metrics PendingDeletionBlocks is not decremented </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> 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/HDFS-185">HDFS-185</a> </td> |
| <td align="left"> Chown , chgrp , chmod operations allowed when namenode is in safemode . </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Ravi Phulari </td> |
| <td align="left"> Ravi Phulari </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-6428">HADOOP-6428</a> </td> |
| <td align="left"> HttpServer sleeps with negative values </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Tsz Wo Nicholas Sze </td> |
| <td align="left"> Konstantin Boudnik </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-101">HDFS-101</a> </td> |
| <td align="left"> DFS write pipeline : DFSClient sometimes does not detect second datanode failure </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> datanode </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-6460">HADOOP-6460</a> </td> |
| <td align="left"> Namenode runs of out of memory due to memory leak in ipc Server </td> |
| <td align="left"> Blocker </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-5623">HADOOP-5623</a> </td> |
| <td align="left"> Streaming: process provided status messages are overwritten every 10 seoncds </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Rick Cox </td> |
| <td align="left"> Rick Cox </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-6315">HADOOP-6315</a> </td> |
| <td align="left"> GzipCodec should not represent BuiltInZlibInflater as decompressorType </td> |
| <td align="left"> Major </td> |
| <td align="left"> io </td> |
| <td align="left"> Aaron Kimball </td> |
| <td align="left"> Aaron Kimball </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-187">HDFS-187</a> </td> |
| <td align="left"> TestStartup fails if hdfs is running in the same machine </td> |
| <td align="left"> Major </td> |
| <td align="left"> test </td> |
| <td align="left"> Tsz Wo Nicholas Sze </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-745">HDFS-745</a> </td> |
| <td align="left"> TestFsck timeout on 0.20. </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/MAPREDUCE-433">MAPREDUCE-433</a> </td> |
| <td align="left"> TestReduceFetch failed. </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Tsz Wo Nicholas Sze </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-6498">HADOOP-6498</a> </td> |
| <td align="left"> IPC client bug may cause rpc call hang </td> |
| <td align="left"> Blocker </td> |
| <td align="left"> ipc </td> |
| <td align="left"> Ruyue Ma </td> |
| <td align="left"> Ruyue Ma </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-872">HDFS-872</a> </td> |
| <td align="left"> DFSClient 0.20.1 is incompatible with HDFS 0.20.2 </td> |
| <td align="left"> Major </td> |
| <td align="left"> datanode, hdfs-client </td> |
| <td align="left"> Bassam Tabbara </td> |
| <td align="left"> Todd Lipcon </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-1010">MAPREDUCE-1010</a> </td> |
| <td align="left"> Adding tests for changes in archives. </td> |
| <td align="left"> Minor </td> |
| <td align="left"> harchive </td> |
| <td align="left"> Mahadev konar </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-6506">HADOOP-6506</a> </td> |
| <td align="left"> Failing tests prevent the rest of test targets from execution. </td> |
| <td align="left"> Major </td> |
| <td align="left"> build </td> |
| <td align="left"> Konstantin Boudnik </td> |
| <td align="left"> Konstantin Boudnik </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-6524">HADOOP-6524</a> </td> |
| <td align="left"> Contrib tests are failing Clover’ed build </td> |
| <td align="left"> Major </td> |
| <td align="left"> build </td> |
| <td align="left"> Konstantin Boudnik </td> |
| <td align="left"> Konstantin Boudnik </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-927">HDFS-927</a> </td> |
| <td align="left"> DFSInputStream retries too many times for new block locations </td> |
| <td align="left"> Critical </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/HADOOP-5611">HADOOP-5611</a> </td> |
| <td align="left"> C++ libraries do not build on Debian Lenny </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/MAPREDUCE-1251">MAPREDUCE-1251</a> </td> |
| <td align="left"> c++ utils doesn’t compile </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Eli Collins </td> |
| <td align="left"> Eli Collins </td></tr> |
| <tr class="b"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HADOOP-5612">HADOOP-5612</a> </td> |
| <td align="left"> Some c++ scripts are not chmodded before ant execution </td> |
| <td align="left"> Major </td> |
| <td align="left"> build </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-6575">HADOOP-6575</a> </td> |
| <td align="left"> Tests do not run on 0.20 branch </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-6576">HADOOP-6576</a> </td> |
| <td align="left"> TestStreamingStatus is failing on 0.20 branch </td> |
| <td align="left"> Major </td> |
| <td align="left"> . </td> |
| <td align="left"> Chris Douglas </td> |
| <td align="left"> Todd Lipcon </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/MAPREDUCE-617">MAPREDUCE-617</a> </td> |
| <td align="left"> Streaming should not throw java.lang.RuntimeException and ERROR while displaying help </td> |
| <td align="left"> Minor </td> |
| <td align="left"> contrib/streaming </td> |
| <td align="left"> Karam Singh </td> |
| <td align="left"> </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-919">HDFS-919</a> </td> |
| <td align="left"> Create test to validate the BlocksVerified metric </td> |
| <td align="left"> Major </td> |
| <td align="left"> test </td> |
| <td align="left"> gary murry </td> |
| <td align="left"> </td></tr> |
| <tr class="a"> |
| <td align="left"> <a class="externalLink" href="https://issues.apache.org/jira/browse/HDFS-907">HDFS-907</a> </td> |
| <td align="left"> Add tests for getBlockLocations and totalLoad metrics. </td> |
| <td align="left"> Minor </td> |
| <td align="left"> namenode </td> |
| <td align="left"> Ravi Phulari </td> |
| <td align="left"> Ravi Phulari </td></tr> |
| </tbody> |
| </table></div></div> |
| </div> |
| </div> |
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