| HADOOP-6215 | fix GenericOptionParser to deal with -D with ‘=’ in the value | Major | . | Owen O'Malley | Amar Kamat |
| HADOOP-6145 | No error message for deleting non-existant file or directory. | Major | fs | Suman Sehgal | Jakob Homan |
| HADOOP-6141 | hadoop 0.20 branch “test-patch” is broken | Major | build | Hong Tang | Hong Tang |
| HADOOP-6139 | Incomplete help message is displayed for rm and rmr options. | Minor | . | Suman Sehgal | Jakob Homan |
| HADOOP-6017 | NameNode and SecondaryNameNode fail to restart because of abnormal filenames. | Blocker | . | Raghu Angadi | Tsz Wo Nicholas Sze |
| HADOOP-5951 | StorageInfo needs Apache license header. | Major | . | Suresh Srinivas | Suresh Srinivas |
| HADOOP-5937 | Correct info message “Use hadoop dfs -safemode option” to " Use hdfs dfsadmin -safemode option" . | Minor | . | Ravi Phulari | Ravi Phulari |
| HADOOP-5932 | MemoryMatcher logs 0 as freeMemOnTT even though there are free slots available on TaskTraker | Major | . | Karam Singh | Vinod Kumar Vavilapalli |
| HADOOP-5924 | JT fails to recover the jobs after restart after HADOOP:4372 | Major | . | Ramya Sunil | Amar Kamat |
| HADOOP-5921 | JobTracker does not come up because of NotReplicatedYetException | Major | . | Amareshwari Sriramadasu | Amar Kamat |
| HADOOP-5920 | TestJobHistory fails some times. | Major | . | Amareshwari Sriramadasu | Amar Kamat |
| HADOOP-5908 | ArithmeticException in heartbeats with zero map jobs | Major | . | Vinod Kumar Vavilapalli | Amar Kamat |
| HADOOP-5884 | Capacity scheduler should account high memory jobs as using more capacity of the queue | Major | . | Hemanth Yamijala | Vinod Kumar Vavilapalli |
| HADOOP-5883 | TaskMemoryMonitorThread might shoot down tasks even if their processes momentarily exceed the requested memory | Major | . | Hemanth Yamijala | Hemanth Yamijala |
| HADOOP-5882 | Progress is not updated when the New Reducer is running reduce phase | Blocker | . | Jothi Padmanabhan | Amareshwari Sriramadasu |
| HADOOP-5850 | map/reduce doesn't run jobs with 0 maps | Critical | . | Owen O'Malley | Vinod Kumar Vavilapalli |
| HADOOP-5828 | Use absolute path for JobTracker's mapred.local.dir in MiniMRCluster | Major | test | Hemanth Yamijala | Hemanth Yamijala |
| HADOOP-5746 | Errors encountered in MROutputThread after the last map/reduce call can go undetected | Major | . | Devaraj Das | Amar Kamat |
| HADOOP-5736 | Update CapacityScheduler documentation to reflect latest changes | Major | . | Sreekanth Ramakrishnan | Sreekanth Ramakrishnan |
| HADOOP-5719 | Jobs failed during job initalization are never removed from Capacity Schedulers waiting list | Major | . | Sreekanth Ramakrishnan | Sreekanth Ramakrishnan |
| HADOOP-5718 | Capacity Scheduler should not check for presence of default queue while starting up. | Major | . | Sreekanth Ramakrishnan | Sreekanth Ramakrishnan |
| HADOOP-5711 | Change Namenode file close log to info | Minor | . | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
| HADOOP-5691 | org.apache.hadoop.mapreduce.Reducer should not be abstract. | Major | . | Amareshwari Sriramadasu | Amareshwari Sriramadasu |
| HADOOP-5688 | HftpFileSystem.getChecksum(..) does not work for the paths with scheme and authority | Major | . | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
| HADOOP-5655 | TestMRServerPorts fails on java.net.BindException | Major | . | Hairong Kuang | Devaraj Das |
| HADOOP-5654 | TestReplicationPolicy.<init> fails on java.net.BindException | Major | test | Hairong Kuang | Hairong Kuang |
| HADOOP-5648 | Not able to generate gridmix.jar on already compiled version of hadoop | Major | benchmarks | Suman Sehgal | Giridharan Kesavan |
| HADOOP-5646 | TestQueueCapacities is failing Hudson tests for the last few builds | Major | . | Jothi Padmanabhan | Vinod Kumar Vavilapalli |
| HADOOP-5641 | Possible NPE in CapacityScheduler's MemoryMatcher | Major | . | Vinod Kumar Vavilapalli | Hemanth Yamijala |
| HADOOP-5636 | Job is left in Running state after a killJob | Critical | . | Amareshwari Sriramadasu | Amar Kamat |
| HADOOP-5539 | o.a.h.mapred.Merger not maintaining map out compression on intermediate files | Blocker | . | Billy Pearson | Jothi Padmanabhan |
| HADOOP-5533 | Recovery duration shown on the jobtracker webpage is inaccurate | Major | . | Amar Kamat | Amar Kamat |
| HADOOP-5349 | When the size required for a path is -1, LocalDirAllocator.getLocalPathForWrite fails with a DiskCheckerException when the disk it selects is bad. | Major | . | Vinod Kumar Vavilapalli | Vinod Kumar Vavilapalli |
| HADOOP-5213 | BZip2CompressionOutputStream NullPointerException | Blocker | io | Zheng Shao | Zheng Shao |
| HADOOP-5210 | Reduce Task Progress shows > 100% when the total size of map outputs (for a single reducer) is high | Minor | . | Jothi Padmanabhan | Ravi Gummadi |
| HADOOP-4674 | hadoop fs -help should list detailed help info for the following commands: test, text, tail, stat & touchz | Trivial | fs | David NeSmith | Ravi Phulari |
| HADOOP-4626 | API link in forrest doc should point to the same version of hadoop. | Minor | documentation | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
| HDFS-1022 | Merge under-10-min tests specs into one file | Major | test | Erik Steffl | Erik Steffl |
| HDFS-525 | ListPathsServlet.java uses static SimpleDateFormat that has threading issues | Major | namenode | Suresh Srinivas | Suresh Srinivas |
| HDFS-438 | Improve help message for quotas | Minor | . | Raghu Angadi | Raghu Angadi |
| HDFS-167 | DFSClient continues to retry indefinitely | Minor | hdfs-client | Derek Wollenstein | Bill Zeller |
| HDFS-26 | HADOOP-5862 for version .20 (Namespace quota exceeded message unclear) | Major | . | Boris Shkolnik | Boris Shkolnik |
| MAPREDUCE-924 | TestPipes must not directly invoke ‘main’ of pipes as an exit from main could cause the testcase to crash. | Major | pipes | Amareshwari Sriramadasu | Amareshwari Sriramadasu |
| MAPREDUCE-911 | TestTaskFail fail sometimes | Major | test | Amareshwari Sriramadasu | Amareshwari Sriramadasu |
| MAPREDUCE-838 | Task succeeds even when committer.commitTask fails with IOException | Blocker | task | Koji Noguchi | Amareshwari Sriramadasu |
| MAPREDUCE-834 | When TaskTracker config use old memory management values its memory monitoring is diabled. | Major | . | Karam Singh | Sreekanth Ramakrishnan |
| MAPREDUCE-832 | Too many WARN messages about deprecated memorty config variables in JobTacker log | Major | . | Karam Singh | rahul k singh |
| MAPREDUCE-818 | org.apache.hadoop.mapreduce.Counters.getGroup returns null if the group name doesnt exist. | Minor | . | Amareshwari Sriramadasu | Amareshwari Sriramadasu |
| MAPREDUCE-807 | Stray user files in mapred.system.dir with permissions other than 777 can prevent the jobtracker from starting up. | Blocker | jobtracker | Amar Kamat | Amar Kamat |
| MAPREDUCE-805 | Deadlock in Jobtracker | Major | . | Michael Tamm | Amar Kamat |
| MAPREDUCE-796 | Encountered “ClassCastException” on tasktracker while running wordcount with MultithreadedMapRunner | Major | examples | Suman Sehgal | Amar Kamat |
| MAPREDUCE-745 | TestRecoveryManager fails sometimes | Major | jobtracker | Amareshwari Sriramadasu | Amar Kamat |
| MAPREDUCE-735 | ArrayIndexOutOfBoundsException is thrown by KeyFieldBasedPartitioner | Major | . | Suman Sehgal | Amar Kamat |
| MAPREDUCE-687 | TestMiniMRMapRedDebugScript fails sometimes | Major | test | Amar Kamat | Amareshwari Sriramadasu |
| MAPREDUCE-657 | CompletedJobStatusStore hardcodes filesystem to hdfs | Major | jobtracker | Amar Kamat | Amar Kamat |
| MAPREDUCE-565 | Partitioner does not work with new API | Blocker | task | Jothi Padmanabhan | Owen O'Malley |
| MAPREDUCE-430 | Task stuck in cleanup with OutOfMemoryErrors | Major | . | Amareshwari Sriramadasu | Amar Kamat |
| MAPREDUCE-421 | mapred pipes might return exit code 0 even when failing | Major | pipes | Christian Kunz | Christian Kunz |
| MAPREDUCE-383 | pipes combiner does not reset properly after a spill | Major | . | Christian Kunz | Christian Kunz |
| MAPREDUCE-179 | setProgress not called for new RecordReaders | Blocker | . | Chris Douglas | Chris Douglas |
| MAPREDUCE-130 | Delete the jobconf copy from the log directory of the JobTracker when the job is retired | Major | . | Devaraj Das | Amar Kamat |
| MAPREDUCE-124 | When abortTask of OutputCommitter fails with an Exception for a map-only job, the task is marked as success | Major | . | Jothi Padmanabhan | Amareshwari Sriramadasu |
| MAPREDUCE-40 | Memory management variables need a backwards compatibility option after HADOOP-5881 | Blocker | . | Hemanth Yamijala | rahul k singh |
| MAPREDUCE-18 | Under load the shuffle sometimes gets incorrect data | Blocker | . | Owen O'Malley | Ravi Gummadi |
| MAPREDUCE-2 | ArrayOutOfIndex error in KeyFieldBasedPartitioner on empty key | Major | . | Amar Kamat | Amar Kamat |