Type: New Feature
Affects Version/s: None
Fix Version/s: 0.20.203.0
Currently, Hadoop services do not authenticate users or other services. As a result, Hadoop is subject to the following security risks.
1. A user can access an HDFS or M/R cluster as any other user. This makes it impossible to enforce access control in an uncooperative environment. For example, file permission checking on HDFS can be easily circumvented.
2. An attacker can masquerade as Hadoop services. For example, user code running on a M/R cluster can register itself as a new TaskTracker.
This JIRA is intended to be a tracking JIRA, where we discuss requirements, agree on a general approach and identify subtasks. Detailed design and implementation are the subject of those subtasks.
|adding delegation token implementation||Resolved|