[YARN-10951] CapacityScheduler: Move all fields and initializer code that belongs to async scheduling to a new class

• Type: Sub-task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.4.0
• Fix Version/s: 3.4.0
• Component/s: capacity scheduler
• Labels: pull-request-available
• Target Version/s: 3.4.0
• Hadoop Flags: Reviewed
• Assignee: Szilard Nemeth
• Reporter: Szilard Nemeth
• Created: 14/Sep/21 20:39
• Updated: 25/Jan/24 15:15
• Resolved: 16/Dec/21 23:21

Description

There are certain if-statements that control whether to initialize some async-scheduling related fields, based on the value of field called 'scheduleAsynchronously'. 
We could move these fields to a separate class for clarity.

Issue Links

• links to: GitHub Pull Request #3438
• links to: GitHub Pull Request #3800