[HADOOP-4451] Resource Manager to assume identity of user to execute task

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Assignee: Unassigned
• Reporter: Marco Nicosia
• Created: 17/Oct/08 23:01
• Updated: 08/Jul/09 16:53
• Resolved: 21/Nov/08 05:31

Description

In the coming resource manager, the current model is that all tasks will run as the same generic user (task.java is called directly by the TaskTracker).

Instead of calling "java task.java [arguments]" allow for calling a program which will assume the UID (euid, gid, etc) of the calling user and call task.java on behalf of the TaskTracker.