[YARN-3764] CapacityScheduler should forbid moving LeafQueue from one parent to another

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Fix Version/s: 2.8.0, 2.7.1, 3.0.0-alpha1
• Target Version/s: 2.7.1
• Hadoop Flags: Reviewed
• Assignee: Wangda Tan
• Reporter: Wangda Tan
• Created: 03/Jun/15 18:37
• Updated: 05/Jan/17 22:43
• Resolved: 04/Jun/15 17:54

Description

Currently CapacityScheduler doesn't handle the case well, for example:

A queue structure:

    root
      |
      a (100)
    /   \
   x     y
  (50)   (50)

And reinitialize using following structure:

     root
     /   \ 
(50)a     x (50)
    |
    y
   (100)

The actual queue structure after reinitialize is:

     root
    /    \
   a (50) x (50)
  /  \
 x    y
(50)  (100)

We should forbid admin doing that.