| HADOOP-2103 | HADOOP-2046 caused some javadoc anomalies | Major | documentation | Nigel Daley | Nigel Daley |
| HADOOP-2102 | ToolBase doesn't keep configuration | Blocker | util | Dennis Kubes | Dennis Kubes |
| HADOOP-2080 | ChecksumFileSystem checksum file size incorrect. | Blocker | fs | Richard Lee | Owen O'Malley |
| HADOOP-2073 | Datanode corruption if machine dies while writing VERSION file | Blocker | . | Michael Bieniosek | Konstantin Shvachko |
| HADOOP-2072 | RawLocalFileStatus is causing Path problems | Major | fs | Dennis Kubes | |
| HADOOP-2070 | Test org.apache.hadoop.mapred.pipes.TestPipes.unknown failed | Blocker | . | Mukund Madhugiri | Owen O'Malley |
| HADOOP-2051 | JobTracker's TaskCommitQueue is vulnerable to non-IOExceptions | Blocker | . | Arun C Murthy | Arun C Murthy |
| HADOOP-2048 | DISTCP mapper should report progress more often | Blocker | . | Runping Qi | Chris Douglas |
| HADOOP-2044 | Namenode encounters ClassCastException exceptions for INodeFileUnderConstruction | Blocker | . | dhruba borthakur | dhruba borthakur |
| HADOOP-2033 | In SequenceFile sync doesn't work unless the file is compressed (block or record) | Blocker | . | Owen O'Malley | Owen O'Malley |
| HADOOP-2031 | Lost tasktracker not handled properly leading to tips wrongly being kept as completed, and hence not rescheduled | Blocker | . | Devaraj Das | Devaraj Das |
| HADOOP-2028 | distcp fails if log dir not specified and destination not present | Blocker | util | Chris Douglas | Chris Douglas |
| HADOOP-2026 | Namenode prints out too many log lines for “Number of transactions” | Blocker | . | dhruba borthakur | dhruba borthakur |
| HADOOP-2023 | TestLocalDirAllocator fails on Windows | Blocker | fs | Mukund Madhugiri | Hairong Kuang |
| HADOOP-2022 | Task times are not saved correctly (bug in hadoop-1874) | Blocker | . | Devaraj Das | Amar Kamat |
| HADOOP-2018 | Broken pipe SocketException in DataNode$DataXceiver | Blocker | . | Konstantin Shvachko | Hairong Kuang |
| HADOOP-2016 | Race condition in removing a KILLED task from tasktracker | Blocker | . | Devaraj Das | Arun C Murthy |
| HADOOP-1997 | TestCheckpoint fails on Windows | Blocker | . | Konstantin Shvachko | Konstantin Shvachko |
| HADOOP-1992 | Sort validation is taking considerably longer than before | Blocker | . | Mukund Madhugiri | Arun C Murthy |
| HADOOP-1983 | jobs using pipes interface with tasks not using java output format have a good chance of not updating progress and timing out | Major | . | Christian Kunz | Owen O'Malley |
| HADOOP-1978 | Name-node should remove edits.new during startup rather than renaming it to edits. | Blocker | . | Konstantin Shvachko | Konstantin Shvachko |
| HADOOP-1973 | NPE at JobTracker startup.. | Blocker | . | Gautam Kowshik | Amareshwari Sriramadasu |
| HADOOP-1961 | -get, -copyToLocal fail when single filename is passed | Blocker | . | Koji Noguchi | Raghu Angadi |
| HADOOP-1959 | Use of File.separator in StatusHttpServer prevents running Junit tests inside eclipse on Windows | Minor | . | Jim Kellerman | Jim Kellerman |
| HADOOP-1955 | Corrupted block replication retries for ever | Blocker | . | Koji Noguchi | Raghu Angadi |
| HADOOP-1953 | the job tracker should wait beteween calls to try and delete the system directory | Blocker | . | Owen O'Malley | Owen O'Malley |
| HADOOP-1948 | Spurious error message during block crc upgrade. | Blocker | . | Raghu Angadi | Raghu Angadi |
| HADOOP-1946 | du should be not called on every heartbeat | Blocker | . | Konstantin Shvachko | Hairong Kuang |
| HADOOP-1944 | Maps which ran on trackers declared ‘lost’ are being marked as FAILED rather than KILLED | Blocker | . | Arun C Murthy | Devaraj Das |
| HADOOP-1940 | TestDFSUpgradeFromImage doesn't shut down its MiniDFSCluster | Major | test | Chris Douglas | Chris Douglas |
| HADOOP-1935 | NullPointerException in internalReleaseCreate | Blocker | . | Konstantin Shvachko | dhruba borthakur |
| HADOOP-1934 | the os.name string on Mac OS contains spaces, which causes the c++ compilation to fail | Major | . | Owen O'Malley | Owen O'Malley |
| HADOOP-1932 | Test dfs.TestFileCreation.testFileCreation failed on Windows | Blocker | test | Mukund Madhugiri | dhruba borthakur |
| HADOOP-1930 | Too many fetch-failures issue | Blocker | . | Christian Kunz | Arun C Murthy |
| HADOOP-1925 | Hadoop Pipes doesn't compile on solaris | Major | . | Owen O'Malley | Owen O'Malley |
| HADOOP-1910 | Extra checks in DFS.create() are not necessary. | Minor | . | Raghu Angadi | Raghu Angadi |
| HADOOP-1907 | JobClient.runJob kills the job for failed tasks with no diagnostics | Major | . | Christian Kunz | Christian Kunz |
| HADOOP-1904 | ArrayIndexOutOfBoundException in BlocksMap | Blocker | . | Konstantin Shvachko | Konstantin Shvachko |
| HADOOP-1897 | about.html page is there but not linked. | Major | . | Enis Soztutar | Enis Soztutar |
| HADOOP-1892 | In the Job UI, some links don't work | Major | . | Devaraj Das | Amar Kamat |
| HADOOP-1890 | Revert a debug patch. | Trivial | . | Raghu Angadi | Raghu Angadi |
| HADOOP-1889 | Fix path in EC2 scripts for building your own AMI | Major | contrib/cloud | Tom White | Tom White |
| HADOOP-1887 | ArrayIndexOutOfBoundsException with trunk | Major | . | Raghu Angadi | dhruba borthakur |
| HADOOP-1885 | Race condition in MiniDFSCluster shutdown | Major | test | Chris Douglas | Chris Douglas |
| HADOOP-1882 | Remove extra '*'s from FsShell.limitDecimal() | Minor | . | Raghu Angadi | Raghu Angadi |
| HADOOP-1875 | multiple dfs.client.buffer.dir directories are not treated as alternatives | Blocker | fs | Christian Kunz | Hairong Kuang |
| HADOOP-1874 | lost task trackers -- jobs hang | Blocker | . | Christian Kunz | Devaraj Das |
| HADOOP-1846 | DatanodeReport should distinguish live datanodes from dead datanodes | Major | . | Hairong Kuang | Hairong Kuang |
| HADOOP-1840 | Task's diagnostic messages are lost sometimes | Critical | . | Arun C Murthy | Arun C Murthy |
| HADOOP-1838 | Files created with an pre-0.15 gets blocksize as zero, causing performance degradation | Blocker | . | dhruba borthakur | dhruba borthakur |
| HADOOP-1832 | listTables() returns duplicate tables | Major | . | Andrew Hitchcock | Jim Kellerman |
| HADOOP-1825 | hadoop-daemon.sh script fails if HADOOP_PID_DIR doesn't exist | Minor | scripts | Michael Bieniosek | Michael Bieniosek |
| HADOOP-1819 | The JobTracker should ensure that it is running on the right host. | Major | . | Owen O'Malley | Owen O'Malley |
| HADOOP-1818 | MutliFileInputFormat returns “empty” MultiFileSplit when number of paths < number of splits | Major | . | Thomas Friol | Thomas Friol |
| HADOOP-1817 | MultiFileSplit does not write and read the total length | Major | . | Thomas Friol | Thomas Friol |
| HADOOP-1812 | TestIPC and TestRPC should use dynamically allocated ports | Major | ipc | Doug Cutting | Doug Cutting |
| HADOOP-1810 | Incorrect Value type in MRBench (SmallJobs) | Blocker | . | Devaraj Das | Devaraj Das |
| HADOOP-1806 | DfsTask no longer compiles | Major | build | Chris Douglas | Chris Douglas |
| HADOOP-1795 | Task.moveTaskOutputs is escaping special characters in output filenames | Critical | . | Frédéric Bertin | Frédéric Bertin |
| HADOOP-1792 | df command doesn't exist under windows | Major | fs | Benjamin Francisoud | Mahadev konar |
| HADOOP-1788 | Increase the buffer size of pipes from 1k to 128k | Blocker | . | Owen O'Malley | Amareshwari Sriramadasu |
| HADOOP-1783 | keyToPath in Jets3tFileSystemStore needs to return absolute path | Major | fs/s3 | Ahad Rana | Tom White |
| HADOOP-1775 | MapWritable and SortedMapWritable - Writable problems | Major | io | Jim Kellerman | Jim Kellerman |
| HADOOP-1772 | Hadoop does not run in Cygwin in Windows | Critical | scripts | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
| HADOOP-1771 | streaming hang when IOException in MROutputThread. (NPE) | Blocker | . | Koji Noguchi | Lohit Vijayarenu |
| HADOOP-1758 | processing escapes in a jute record is quadratic | Blocker | record | Dick King | Vivek Ratan |
| HADOOP-1749 | TestDFSUpgrade some times fails with an assert | Major | . | Raghu Angadi | Enis Soztutar |
| HADOOP-1748 | Task Trackers fail to launch tasks when they have relative log directories configured | Major | . | Owen O'Malley | Owen O'Malley |
| HADOOP-1739 | ConnectException in TaskTracker Child | Major | . | Srikanth Kakani | Doug Cutting |
| HADOOP-1708 | make files visible in the namespace as soon as they are created | Major | . | dhruba borthakur | dhruba borthakur |
| HADOOP-1695 | Secondary Namenode halt when SocketTimeoutException at startup | Blocker | . | Koji Noguchi | dhruba borthakur |
| HADOOP-1692 | DfsTask cache interferes with operation | Minor | util | Chris Douglas | Chris Douglas |
| HADOOP-1689 | .sh scripts do not work on Solaris | Minor | scripts | David Biesack | Doug Cutting |
| HADOOP-1656 | HDFS does not record the blocksize for a file | Major | . | Sameer Paranjpye | dhruba borthakur |
| HADOOP-1651 | Some improvements in progress reporting | Major | . | Devaraj Das | Devaraj Das |
| HADOOP-1636 | constant should be user-configurable: MAX_COMPLETE_USER_JOBS_IN_MEMORY | Major | . | Michael Bieniosek | Michael Bieniosek |
| HADOOP-1601 | GenericWritable should use ReflectionUtils.newInstance to avoid problems with classloaders | Major | io | Owen O'Malley | Enis Soztutar |
| HADOOP-1573 | Support for 0 reducers in PIPES | Major | . | Christian Kunz | Owen O'Malley |
| HADOOP-1569 | distcp should use the Path -> FileSystem interface like the rest of Hadoop | Major | util | Owen O'Malley | Chris Douglas |
| HADOOP-1565 | DFSScalability: reduce memory usage of namenode | Major | . | dhruba borthakur | dhruba borthakur |
| HADOOP-1463 | dfs.datanode.du.reserved semantics being violated | Blocker | . | Hairong Kuang | Hairong Kuang |
| HADOOP-1316 | “Go to parent directory” does not work on windows. | Minor | . | Konstantin Shvachko | Mahadev konar |
| HADOOP-1076 | Periodic checkpointing cannot resume if the secondary name-node fails. | Major | . | Konstantin Shvachko | dhruba borthakur |
| HADOOP-1018 | Single lost heartbeat leads to a “Lost task tracker” | Major | . | Andrzej Bialecki | Arun C Murthy |
| HADOOP-999 | DFS Client should create file when the user creates the file | Major | . | Owen O'Malley | Tsz Wo Nicholas Sze |
| HADOOP-932 | File locking interface and implementation should be remvoed. | Minor | fs | Raghu Angadi | Raghu Angadi |
| HADOOP-795 | hdfs -cp /a/b/c /x/y acts like hdfs -cp /a/b/c/* /x/y | Minor | . | arkady borkovsky | Mahadev konar |
| HADOOP-120 | Reading an ArrayWriter does not work because valueClass does not get initialized | Major | io | Dick King | Cameron Pope |
| HADOOP-89 | files are not visible until they are closed | Critical | . | Yoram Arnon | dhruba borthakur |