| HADOOP-3010 | ConcurrentModificationException from org.apache.hadoop.ipc.Server$Responder in JobTracker | Major | ipc | Amar Kamat | Raghu Angadi | 
| HADOOP-3159 | FileSystem cache keep overwriting cached value | Blocker | . | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | 
| HADOOP-3154 | Job successful but dropping records (when disk full) | Blocker | . | Koji Noguchi | Devaraj Das | 
| HADOOP-3139 | DistributedFileSystem.close() deadlock and FileSystem.closeAll() warning | Blocker | . | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | 
| HADOOP-3195 | TestFileSystem fails randomly | Minor | test | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | 
| HADOOP-3069 | A failure on SecondaryNameNode truncates the primary NameNode image. | Blocker | . | Konstantin Shvachko | Konstantin Shvachko | 
| HADOOP-3182 | JobClient creates submitJobDir with SYSTEM_DIR_PERMISSION ( rwx-wx-wx) | Blocker | . | Lohit Vijayarenu | Tsz Wo Nicholas Sze |