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< h1 > Apache Hadoop Changelog< / h1 > < section >
< h2 > < a name = "Release_0.20.1_-_2009-09-01" > < / a > Release 0.20.1 - 2009-09-01< / h2 > < 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-5726" > HADOOP-5726< / a > < / td >
< td align = "left" > Remove pre-emption from the capacity scheduler code base < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Hemanth Yamijala < / td >
< td align = "left" > rahul k singh < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5881" > HADOOP-5881< / a > < / td >
< td align = "left" > Simplify configuration related to task-memory-monitoring and memory-based scheduling < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Vinod Kumar Vavilapalli < / td >
< td align = "left" > Vinod Kumar Vavilapalli < / td > < / tr >
< / tbody >
< / table > < / section > < 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-5714" > HADOOP-5714< / a > < / td >
< td align = "left" > Metric to show number of fs.exists (or number of getFileInfo) calls < / td >
< td align = "left" > Minor < / td >
< td align = "left" > metrics < / td >
< td align = "left" > Koji Noguchi < / td >
< td align = "left" > Jakob Homan < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-3315" > HADOOP-3315< / a > < / td >
< td align = "left" > New binary file format < / td >
< td align = "left" > Major < / td >
< td align = "left" > io < / td >
< td align = "left" > Owen O’ Malley < / td >
< td align = "left" > Hong Tang < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-6080" > HADOOP-6080< / a > < / td >
< td align = "left" > Handling of Trash with quota < / td >
< td align = "left" > Major < / td >
< td align = "left" > fs < / td >
< td align = "left" > Koji Noguchi < / td >
< td align = "left" > Jakob Homan < / td > < / tr >
< / tbody >
< / table > < / section > < section >
< h3 > < a name = "IMPROVEMENTS:" > < / a > IMPROVEMENTS:< / h3 >
< table border = "0" class = "bodyTable" >
< thead >
< tr class = "a" >
< th align = "left" > JIRA < / th >
< th align = "left" > Summary < / th >
< th align = "left" > Priority < / th >
< th align = "left" > Component < / th >
< th align = "left" > Reporter < / th >
< th align = "left" > Contributor < / th > < / tr >
< / thead > < tbody >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-465" > MAPREDUCE-465< / a > < / td >
< td align = "left" > Deprecate org.apache.hadoop.mapred.lib.MultithreadedMapRunner < / td >
< td align = "left" > Minor < / 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/HDFS-527" > HDFS-527< / a > < / td >
< td align = "left" > Refactor DFSClient constructors < / td >
< td align = "left" > Major < / td >
< td align = "left" > hdfs-client < / 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/MAPREDUCE-767" > MAPREDUCE-767< / a > < / td >
< td align = "left" > to remove mapreduce dependency on commons-cli2 < / td >
< td align = "left" > Major < / td >
< td align = "left" > contrib/streaming < / td >
< td align = "left" > Giridharan Kesavan < / td >
< td align = "left" > Amar Kamat < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-635" > HDFS-635< / a > < / td >
< td align = "left" > HDFS Project page does not show 0.20.1 documentation/release information. < / td >
< td align = "left" > Major < / td >
< td align = "left" > documentation < / td >
< td align = "left" > Andy Sautins < / td >
< td align = "left" > < / td > < / tr >
< / tbody >
< / table > < / section > < section >
< h3 > < a name = "BUG_FIXES:" > < / a > BUG FIXES:< / h3 >
< table border = "0" class = "bodyTable" >
< thead >
< tr class = "a" >
< th align = "left" > JIRA < / th >
< th align = "left" > Summary < / th >
< th align = "left" > Priority < / th >
< th align = "left" > Component < / th >
< th align = "left" > Reporter < / th >
< th align = "left" > Contributor < / th > < / tr >
< / thead > < tbody >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5210" > HADOOP-5210< / a > < / td >
< td align = "left" > Reduce Task Progress shows > 100% when the total size of map outputs (for a single reducer) is high < / td >
< td align = "left" > Minor < / td >
< td align = "left" > . < / td >
< td align = "left" > Jothi Padmanabhan < / td >
< td align = "left" > Ravi Gummadi < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5654" > HADOOP-5654< / a > < / td >
< td align = "left" > TestReplicationPolicy.< init> fails on java.net.BindException < / 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-5655" > HADOOP-5655< / a > < / td >
< td align = "left" > TestMRServerPorts fails on java.net.BindException < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Hairong Kuang < / 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-5533" > HADOOP-5533< / a > < / td >
< td align = "left" > Recovery duration shown on the jobtracker webpage is inaccurate < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Amar Kamat < / td >
< td align = "left" > Amar Kamat < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5646" > HADOOP-5646< / a > < / td >
< td align = "left" > TestQueueCapacities is failing Hudson tests for the last few builds < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Jothi Padmanabhan < / td >
< td align = "left" > Vinod Kumar Vavilapalli < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5691" > HADOOP-5691< / a > < / td >
< td align = "left" > org.apache.hadoop.mapreduce.Reducer should not be abstract. < / 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-5688" > HADOOP-5688< / a > < / td >
< td align = "left" > HftpFileSystem.getChecksum(..) does not work for the paths with scheme and authority < / 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-4674" > HADOOP-4674< / a > < / td >
< td align = "left" > hadoop fs -help should list detailed help info for the following commands: test, text, tail, stat & touchz < / td >
< td align = "left" > Trivial < / td >
< td align = "left" > fs < / td >
< td align = "left" > David NeSmith < / 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-5711" > HADOOP-5711< / a > < / td >
< td align = "left" > Change Namenode file close log to info < / td >
< td align = "left" > Minor < / td >
< td align = "left" > . < / td >
< td align = "left" > Tsz Wo Nicholas Sze < / td >
< td align = "left" > Tsz Wo Nicholas Sze < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-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 = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5736" > HADOOP-5736< / a > < / td >
< td align = "left" > Update CapacityScheduler documentation to reflect latest changes < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Sreekanth Ramakrishnan < / td >
< td align = "left" > Sreekanth Ramakrishnan < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5718" > HADOOP-5718< / a > < / td >
< td align = "left" > Capacity Scheduler should not check for presence of default queue while starting up. < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Sreekanth Ramakrishnan < / td >
< td align = "left" > Sreekanth Ramakrishnan < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5719" > HADOOP-5719< / a > < / td >
< td align = "left" > Jobs failed during job initalization are never removed from Capacity Schedulers waiting list < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Sreekanth Ramakrishnan < / td >
< td align = "left" > Sreekanth Ramakrishnan < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5349" > HADOOP-5349< / a > < / td >
< td align = "left" > When the size required for a path is -1, LocalDirAllocator.getLocalPathForWrite fails with a DiskCheckerException when the disk it selects is bad. < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Vinod Kumar Vavilapalli < / td >
< td align = "left" > Vinod Kumar Vavilapalli < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5636" > HADOOP-5636< / a > < / td >
< td align = "left" > Job is left in Running state after a killJob < / td >
< td align = "left" > Critical < / td >
< td align = "left" > . < / td >
< td align = "left" > Amareshwari Sriramadasu < / 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-5641" > HADOOP-5641< / a > < / td >
< td align = "left" > Possible NPE in CapacityScheduler’ s MemoryMatcher < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Vinod Kumar Vavilapalli < / td >
< td align = "left" > Hemanth Yamijala < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5828" > HADOOP-5828< / a > < / td >
< td align = "left" > Use absolute path for JobTracker’ s mapred.local.dir in MiniMRCluster < / td >
< td align = "left" > Major < / td >
< td align = "left" > test < / td >
< td align = "left" > Hemanth Yamijala < / td >
< td align = "left" > Hemanth Yamijala < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5850" > HADOOP-5850< / a > < / td >
< td align = "left" > map/reduce doesn’ t run jobs with 0 maps < / td >
< td align = "left" > Critical < / td >
< td align = "left" > . < / td >
< td align = "left" > Owen O’ Malley < / td >
< td align = "left" > Vinod Kumar Vavilapalli < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4626" > HADOOP-4626< / a > < / td >
< td align = "left" > API link in forrest doc should point to the same version of hadoop. < / td >
< td align = "left" > Minor < / td >
< td align = "left" > documentation < / 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-5883" > HADOOP-5883< / a > < / td >
< td align = "left" > TaskMemoryMonitorThread might shoot down tasks even if their processes momentarily exceed the requested memory < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Hemanth Yamijala < / td >
< td align = "left" > Hemanth Yamijala < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5539" > HADOOP-5539< / a > < / td >
< td align = "left" > o.a.h.mapred.Merger not maintaining map out compression on intermediate files < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > . < / td >
< td align = "left" > Billy Pearson < / 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-5932" > HADOOP-5932< / a > < / td >
< td align = "left" > MemoryMatcher logs 0 as freeMemOnTT even though there are free slots available on TaskTraker < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Karam Singh < / td >
< td align = "left" > Vinod Kumar Vavilapalli < / 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-5648" > HADOOP-5648< / a > < / td >
< td align = "left" > Not able to generate gridmix.jar on already compiled version of hadoop < / td >
< td align = "left" > Major < / td >
< td align = "left" > benchmarks < / td >
< td align = "left" > Suman Sehgal < / td >
< td align = "left" > Giridharan Kesavan < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5908" > HADOOP-5908< / a > < / td >
< td align = "left" > ArithmeticException in heartbeats with zero map jobs < / td >
< td align = "left" > Major < / 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-5924" > HADOOP-5924< / a > < / td >
< td align = "left" > JT fails to recover the jobs after restart after HADOOP:4372 < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Ramya Sunil < / 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-5882" > HADOOP-5882< / a > < / td >
< td align = "left" > Progress is not updated when the New Reducer is running reduce phase < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > . < / td >
< td align = "left" > Jothi Padmanabhan < / 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-5746" > HADOOP-5746< / a > < / td >
< td align = "left" > Errors encountered in MROutputThread after the last map/reduce call can go undetected < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Devaraj Das < / td >
< td align = "left" > Amar Kamat < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5884" > HADOOP-5884< / a > < / td >
< td align = "left" > Capacity scheduler should account high memory jobs as using more capacity of the queue < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Hemanth Yamijala < / td >
< td align = "left" > Vinod Kumar Vavilapalli < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5937" > HADOOP-5937< / a > < / td >
< td align = "left" > Correct info message “ Use hadoop dfs -safemode option” to " Use hdfs dfsadmin -safemode option" . < / td >
< td align = "left" > Minor < / 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-5921" > HADOOP-5921< / a > < / td >
< td align = "left" > JobTracker does not come up because of NotReplicatedYetException < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Amareshwari Sriramadasu < / td >
< td align = "left" > Amar Kamat < / td > < / tr >
< tr class = "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 >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5920" > HADOOP-5920< / a > < / td >
< td align = "left" > TestJobHistory fails some times. < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Amareshwari Sriramadasu < / td >
< td align = "left" > Amar Kamat < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-26" > HDFS-26< / a > < / td >
< td align = "left" > HADOOP-5862 for version .20 (Namespace quota exceeded message unclear) < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Boris Shkolnik < / td >
< td align = "left" > Boris Shkolnik < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-438" > HDFS-438< / a > < / td >
< td align = "left" > Improve help message for quotas < / td >
< td align = "left" > Minor < / 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/MAPREDUCE-2" > MAPREDUCE-2< / a > < / td >
< td align = "left" > ArrayOutOfIndex error in KeyFieldBasedPartitioner on empty key < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Amar Kamat < / td >
< td align = "left" > Amar Kamat < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-130" > MAPREDUCE-130< / a > < / td >
< td align = "left" > Delete the jobconf copy from the log directory of the JobTracker when the job is retired < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Devaraj Das < / td >
< td align = "left" > Amar Kamat < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-657" > MAPREDUCE-657< / a > < / td >
< td align = "left" > CompletedJobStatusStore hardcodes filesystem to hdfs < / td >
< td align = "left" > Major < / td >
< td align = "left" > jobtracker < / 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/MAPREDUCE-179" > MAPREDUCE-179< / a > < / td >
< td align = "left" > setProgress not called for new RecordReaders < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > . < / td >
< td align = "left" > Chris Douglas < / td >
< td align = "left" > Chris Douglas < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-124" > MAPREDUCE-124< / a > < / td >
< td align = "left" > When abortTask of OutputCommitter fails with an Exception for a map-only job, the task is marked as success < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Jothi Padmanabhan < / 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-6139" > HADOOP-6139< / a > < / td >
< td align = "left" > Incomplete help message is displayed for rm and rmr options. < / td >
< td align = "left" > Minor < / td >
< td align = "left" > . < / td >
< td align = "left" > Suman Sehgal < / td >
< td align = "left" > Jakob Homan < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-6141" > HADOOP-6141< / a > < / td >
< td align = "left" > hadoop 0.20 branch “ test-patch” is broken < / td >
< td align = "left" > Major < / td >
< td align = "left" > build < / td >
< td align = "left" > Hong Tang < / td >
< td align = "left" > Hong Tang < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-6145" > HADOOP-6145< / a > < / td >
< td align = "left" > No error message for deleting non-existant file or directory. < / td >
< td align = "left" > Major < / td >
< td align = "left" > fs < / td >
< td align = "left" > Suman Sehgal < / td >
< td align = "left" > Jakob Homan < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-565" > MAPREDUCE-565< / a > < / td >
< td align = "left" > Partitioner does not work with new API < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > task < / td >
< td align = "left" > Jothi Padmanabhan < / td >
< td align = "left" > Owen O’ Malley < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-18" > MAPREDUCE-18< / a > < / td >
< td align = "left" > Under load the shuffle sometimes gets incorrect data < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > . < / td >
< td align = "left" > Owen O’ Malley < / td >
< td align = "left" > Ravi Gummadi < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-735" > MAPREDUCE-735< / a > < / td >
< td align = "left" > ArrayIndexOutOfBoundsException is thrown by KeyFieldBasedPartitioner < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Suman Sehgal < / td >
< td align = "left" > Amar Kamat < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-383" > MAPREDUCE-383< / a > < / td >
< td align = "left" > pipes combiner does not reset properly after a spill < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / 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-40" > MAPREDUCE-40< / a > < / td >
< td align = "left" > Memory management variables need a backwards compatibility option after HADOOP-5881 < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > . < / td >
< td align = "left" > Hemanth Yamijala < / td >
< td align = "left" > rahul k singh < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-796" > MAPREDUCE-796< / a > < / td >
< td align = "left" > Encountered “ ClassCastException” on tasktracker while running wordcount with MultithreadedMapRunner < / td >
< td align = "left" > Major < / td >
< td align = "left" > examples < / td >
< td align = "left" > Suman Sehgal < / td >
< td align = "left" > Amar Kamat < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-838" > MAPREDUCE-838< / a > < / td >
< td align = "left" > Task succeeds even when committer.commitTask fails with IOException < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > task < / td >
< td align = "left" > Koji Noguchi < / td >
< td align = "left" > Amareshwari Sriramadasu < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-805" > MAPREDUCE-805< / a > < / td >
< td align = "left" > Deadlock in Jobtracker < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Michael Tamm < / td >
< td align = "left" > Amar Kamat < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-167" > HDFS-167< / a > < / td >
< td align = "left" > DFSClient continues to retry indefinitely < / td >
< td align = "left" > Minor < / td >
< td align = "left" > hdfs-client < / td >
< td align = "left" > Derek Wollenstein < / td >
< td align = "left" > Bill Zeller < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-832" > MAPREDUCE-832< / a > < / td >
< td align = "left" > Too many WARN messages about deprecated memorty config variables in JobTacker log < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Karam Singh < / td >
< td align = "left" > rahul k singh < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-745" > MAPREDUCE-745< / a > < / td >
< td align = "left" > TestRecoveryManager fails sometimes < / td >
< td align = "left" > Major < / td >
< td align = "left" > jobtracker < / td >
< td align = "left" > Amareshwari Sriramadasu < / td >
< td align = "left" > Amar Kamat < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-834" > MAPREDUCE-834< / a > < / td >
< td align = "left" > When TaskTracker config use old memory management values its memory monitoring is diabled. < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Karam Singh < / 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-818" > MAPREDUCE-818< / a > < / td >
< td align = "left" > org.apache.hadoop.mapreduce.Counters.getGroup returns null if the group name doesnt exist. < / td >
< td align = "left" > Minor < / 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/MAPREDUCE-807" > MAPREDUCE-807< / a > < / td >
< td align = "left" > Stray user files in mapred.system.dir with permissions other than 777 can prevent the jobtracker from starting up. < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > jobtracker < / td >
< td align = "left" > Amar Kamat < / td >
< td align = "left" > Amar Kamat < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-430" > MAPREDUCE-430< / a > < / td >
< td align = "left" > Task stuck in cleanup with OutOfMemoryErrors < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Amareshwari Sriramadasu < / td >
< td align = "left" > Amar Kamat < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-6215" > HADOOP-6215< / a > < / td >
< td align = "left" > fix GenericOptionParser to deal with -D with ‘ =’ in the value < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Owen O’ Malley < / td >
< td align = "left" > Amar Kamat < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-421" > MAPREDUCE-421< / a > < / td >
< td align = "left" > mapred pipes might return exit code 0 even when failing < / td >
< td align = "left" > Major < / td >
< td align = "left" > pipes < / td >
< td align = "left" > Christian Kunz < / td >
< td align = "left" > Christian Kunz < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-525" > HDFS-525< / a > < / td >
< td align = "left" > ListPathsServlet.java uses static SimpleDateFormat that has threading issues < / 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-911" > MAPREDUCE-911< / a > < / td >
< td align = "left" > TestTaskFail fail sometimes < / td >
< td align = "left" > Major < / td >
< td align = "left" > test < / 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/MAPREDUCE-687" > MAPREDUCE-687< / a > < / td >
< td align = "left" > TestMiniMRMapRedDebugScript fails sometimes < / td >
< td align = "left" > Major < / td >
< td align = "left" > test < / 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/MAPREDUCE-924" > MAPREDUCE-924< / a > < / td >
< td align = "left" > TestPipes must not directly invoke ‘ main’ of pipes as an exit from main could cause the testcase to crash. < / td >
< td align = "left" > Major < / td >
< td align = "left" > pipes < / 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/HDFS-1022" > HDFS-1022< / a > < / td >
< td align = "left" > Merge under-10-min tests specs into one file < / td >
< td align = "left" > Major < / td >
< td align = "left" > test < / td >
< td align = "left" > Erik Steffl < / td >
< td align = "left" > Erik Steffl < / td > < / tr >
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< h3 > < a name = "SUB-TASKS:" > < / a > SUB-TASKS:< / h3 >
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< 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-6213" > HADOOP-6213< / a > < / td >
< td align = "left" > Remove commons dependency on commons-cli2 < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > util < / td >
< td align = "left" > Amar Kamat < / td >
< td align = "left" > Amar Kamat < / td > < / tr >
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