| JIRA | Summary | Priority | Component | Reporter | Contributor |
|---|---|---|---|---|---|
| HADOOP-827 | turn off speculative execution by default | Major | . | Owen O’Malley | Owen O’Malley |
| HADOOP-791 | deadlock issue in taskstracker. | Major | . | Mahadev konar | Mahadev konar |
| HADOOP-639 | task cleanup messages can get lost, causing task trackers to keep tasks forever | Major | . | Owen O’Malley | Arun C Murthy |