[FLINK-25755] Introduce shared interface for adaptive scheduler state transitions

• Type: Sub-task
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.15.0
• Component/s: Runtime / Coordination
• Labels: pull-request-available
• Assignee: David Morávek
• Reporter: David Morávek
• Created: 21/Jan/22 15:52
• Updated: 10/Feb/22 14:21
• Resolved: 10/Feb/22 14:21

Description

Currently the definitions of the state transitions are scatter between multiple state contexts. We want to:

• Getting rid of duplicate definitions
• Attempt to make the state transitions less confusing for the "code reader"

This will allow "code reader" to use a type hierarchy for understanding which transitions are allowed from which state. (see the attached screenshot)

Issue Links

• links to: GitHub Pull Request #18445