| HADOOP-10588 | Workaround for jetty6 acceptor startup issue | Major | . | Kihwal Lee | Kihwal Lee |
| HADOOP-10332 | HttpServer's jetty audit log always logs 200 OK | Major | . | Daryn Sharp | Jonathan Eagles |
| HADOOP-10146 | Workaround JDK7 Process fd close bug | Critical | util | Daryn Sharp | Daryn Sharp |
| HADOOP-10129 | Distcp may succeed when it fails | Critical | tools/distcp | Daryn Sharp | Daryn Sharp |
| HADOOP-10112 | har file listing doesn't work with wild card | Major | tools | Brandon Li | Brandon Li |
| HADOOP-10110 | hadoop-auth has a build break due to missing dependency | Blocker | build | Chuan Liu | Chuan Liu |
| HADOOP-10081 | Client.setupIOStreams can leak socket resources on exception or error | Critical | ipc | Jason Lowe | Tsuyoshi Ozawa |
| HADOOP-9230 | TestUniformSizeInputFormat fails intermittently | Major | test | Karthik Kambatla | Karthik Kambatla |
| HADOOP-8826 | Docs still refer to 0.20.205 as stable line | Minor | . | Robert Joseph Evans | Mit Desai |
| HDFS-6449 | Incorrect counting in ContentSummaryComputationContext in 0.23. | Critical | . | Kihwal Lee | Kihwal Lee |
| HDFS-6166 | revisit balancer so_timeout | Blocker | balancer & mover | Nathan Roberts | Nathan Roberts |
| HDFS-5881 | Fix skip() of the short-circuit local reader (legacy). | Critical | . | Kihwal Lee | Kihwal Lee |
| HDFS-5806 | balancer should set SoTimeout to avoid indefinite hangs | Major | balancer & mover | Nathan Roberts | Nathan Roberts |
| HDFS-5728 | [Diskfull] Block recovery will fail if the metafile does not have crc for all chunks of the block | Critical | datanode | Vinayakumar B | Vinayakumar B |
| HDFS-4576 | Webhdfs authentication issues | Major | webhdfs | Daryn Sharp | Daryn Sharp |
| MAPREDUCE-5789 | Average Reduce time is incorrect on Job Overview page | Major | jobhistoryserver, webapps | Rushabh S Shah | Rushabh S Shah |
| MAPREDUCE-5778 | JobSummary does not escape newlines in the job name | Major | jobhistoryserver | Jason Lowe | Akira AJISAKA |
| MAPREDUCE-5757 | ConcurrentModificationException in JobControl.toList | Major | client | Jason Lowe | Jason Lowe |
| MAPREDUCE-5746 | Job diagnostics can implicate wrong task for a failed job | Major | jobhistoryserver | Jason Lowe | Jason Lowe |
| MAPREDUCE-5744 | Job hangs because RMContainerAllocator$AssignedRequests.preemptReduce() violates the comparator contract | Blocker | . | Sangjin Lee | Gera Shegalov |
| MAPREDUCE-5689 | MRAppMaster does not preempt reducers when scheduled maps cannot be fulfilled | Critical | . | Lohit Vijayarenu | Lohit Vijayarenu |
| MAPREDUCE-5623 | TestJobCleanup fails because of RejectedExecutionException and NPE. | Major | . | Tsuyoshi Ozawa | Jason Lowe |
| MAPREDUCE-5454 | TestDFSIO fails intermittently on JDK7 | Major | test | Karthik Kambatla | Karthik Kambatla |
| MAPREDUCE-3191 | docs for map output compression incorrectly reference SequenceFile | Trivial | . | Todd Lipcon | Chen He |
| YARN-3829 | The History Tracking UI is broken for Tez application on ResourceManager WebUI | Critical | applications | Irina Easterling | |
| YARN-1932 | Javascript injection on the job status page | Blocker | . | Mit Desai | Mit Desai |
| YARN-1670 | aggregated log writer can write more log data then it says is the log length | Critical | . | Thomas Graves | Mit Desai |
| YARN-1592 | CapacityScheduler tries to reserve more than a node's total memory on branch-0.23 | Major | capacityscheduler | Thomas Graves | Thomas Graves |
| YARN-1180 | Update capacity scheduler docs to include types on the configs | Trivial | capacityscheduler | Thomas Graves | Chen He |
| YARN-1145 | Potential file handle leak in aggregated logs web ui | Major | . | Rohith Sharma K S | Rohith Sharma K S |
| YARN-1053 | Diagnostic message from ContainerExitEvent is ignored in ContainerImpl | Blocker | . | Omkar Vinit Joshi | Omkar Vinit Joshi |
| YARN-853 | maximum-am-resource-percent doesn't work after refreshQueues command | Major | capacityscheduler | Devaraj K | Devaraj K |
| YARN-500 | ResourceManager webapp is using next port if configured port is already in use | Major | resourcemanager | Nishan Shetty | Kenji Kikushima |