[STORM-1450] Fix bugs and refactor code in ResourceAwareScheduler

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Assignee: Boyang Jerry Peng
• Reporter: Boyang Jerry Peng
• Created: 07/Jan/16 16:22
• Updated: 22/Jan/16 16:00
• Resolved: 20/Jan/16 22:07

Description

Code refactored:

1. Refactor RAS_Nodes. Pushed some of the functionality in to RAS_Nodes. Each RAS_Node will now be initialized with a map of all its assignments. Each RAS_Node will also figure out resources used and available. Removed unnecessary functions.

2. Made WorkerSlot immutable so that a scheduling strategy won't mistakenly modify it

3. Added a wrapping layer for RAS_Node to feed into scheduling strategies so that the semantics of what a scheduling strategy should do will be more clear. Each scheduling strategy shouldn't be actually assigning anything. The strategy should only calculate a scheduling.

Bug fixes:

1. Minor bug in displaying the assigned resources for a supervisor on the UI. The function updateSupervisorResources was placed in the wrong place

2. Minor bug fix in freeing memory in RAS_Node there was some wrong math that was done.