[TEZ-4024] DAGAppMaster should access resources in UGI context on startup

• Type: Bug
• Status: In Progress
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.9.1
• Target Version/s: 0.10.1
• Assignee: Eric Wohlstadter
• Reporter: Eric Wohlstadter
• Created: 29/Nov/18 19:52
• Updated: 29/Nov/18 22:59

Description

On startup, DAGAppMaster accesses resources such as config PBs and staging dirs as yarn rather than through the UGI context.

This creates access control violations when yarn does not have permissions for those resources.

This also seems odd, since during shutdown, DAGAppMaster does access resources through UGI.