| HADOOP-112 | copyFromLocal should exclude .crc files | Minor | . | Monu Ogbe | Doug Cutting |
| HADOOP-110 | new key and value instances are allocated before each map | Major | . | Owen O'Malley | Owen O'Malley |
| HADOOP-107 | Namenode errors “Failed to complete filename.crc because dir.getFile()==null and null” | Major | . | Igor Bolotin | Doug Cutting |
| HADOOP-102 | Two identical consecutive loops in FSNamesystem.chooseTarget() | Major | . | Konstantin Shvachko | Konstantin Shvachko |
| HADOOP-100 | Inconsistent locking of the JobTracker.taskTrackers field | Major | . | Owen O'Malley | Owen O'Malley |
| HADOOP-98 | The JobTracker's count of the number of running maps and reduces is wrong | Major | . | Owen O'Malley | Owen O'Malley |
| HADOOP-97 | DFSShell.cat returns NullPointerException if file does not exist | Major | . | Konstantin Shvachko | Konstantin Shvachko |
| HADOOP-93 | allow minimum split size configurable | Major | . | Hairong Kuang | Doug Cutting |
| HADOOP-86 | If corrupted map outputs, reducers get stuck fetching forever | Major | . | stack | Doug Cutting |
| HADOOP-84 | client should report file name in which IO exception occurs | Minor | . | Yoram Arnon | Konstantin Shvachko |
| HADOOP-83 | infinite retries accessing a missing block | Major | . | Yoram Arnon | Konstantin Shvachko |
| HADOOP-82 | JobTracker loses it: NoSuchElementException | Minor | . | stack | |
| HADOOP-81 | speculative execution is only controllable from the default config | Major | . | Owen O'Malley | Owen O'Malley |
| HADOOP-78 | rpc commands not buffered | Major | ipc | Owen O'Malley | Owen O'Malley |
| HADOOP-77 | hang / crash when input folder does not exists. | Critical | . | Stefan Groschupf | |
| HADOOP-70 | the two file system tests TestDFS and TestFileSystem take too long | Major | . | Owen O'Malley | Owen O'Malley |
| HADOOP-66 | dfs client writes all data for a chunk to /tmp | Major | . | Sameer Paranjpye | Doug Cutting |
| HADOOP-57 | hadoop dfs -ls / does not show root of file system | Minor | . | Yoram Arnon | |
| HADOOP-52 | mapred input and output dirs must be absolute | Major | . | Doug Cutting | Owen O'Malley |
| HADOOP-42 | PositionCache decrements its position for reads at the end of file | Major | fs | Konstantin Shvachko | |
| HADOOP-40 | bufferSize argument is ignored in FileSystem.create(File, boolean, int) | Minor | fs | Konstantin Shvachko | |
| HADOOP-34 | Build Paths Relative to PWD in build.xml | Trivial | . | Jeremy Bensley | |
| HADOOP-28 | webapps broken | Major | . | Owen O'Malley | |
| HADOOP-22 | remove unused imports | Trivial | . | Sami Siren | |
| HADOOP-21 | the webapps need to be updated for the move from nutch | Minor | . | Owen O'Malley | |
| HADOOP-19 | Datanode corruption | Critical | . | Rod Taylor | Doug Cutting |
| HADOOP-16 | RPC call times out while indexing map task is computing splits | Major | . | Chris Schneider | Mike Cafarella |
| HADOOP-12 | InputFormat used in job must be in JobTracker classpath (not loaded from job JAR) | Minor | . | Bryan Pendleton | |
| HADOOP-10 | ndfs.replication is not documented within the nutch-default.xml configuration file. | Trivial | . | Rod Taylor | |
| HADOOP-7 | MapReduce has a series of problems concerning task-allocation to worker nodes | Major | . | Mike Cafarella | |
| HADOOP-6 | missing build directory in classpath | Minor | . | Owen O'Malley | |
| HADOOP-5 | need commons-logging-api jar file | Minor | . | Owen O'Malley | |
| HADOOP-3 | Output directories are not cleaned up before the reduces run | Minor | . | Owen O'Malley | Owen O'Malley |
| HADOOP-2 | Reused Keys and Values fail with a Combiner | Major | . | Owen O'Malley | Owen O'Malley |