[FLINK-25806] Remove legacy high availability services

• Type: Technical Debt
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 1.16.0
• Fix Version/s: 1.16.0
• Component/s: Runtime / Coordination
• Labels: pull-request-available
• Assignee: Chesnay Schepler
• Reporter: Till Rohrmann
• Created: 25/Jan/22 14:05
• Updated: 19/Apr/23 09:04
• Resolved: 12/Apr/22 16:22

Description

After FLINK-24038, we should consider removing the legacy high availability services ZooKeeperHaServices and KubernetesHaServices since they are now subsumed by the multiple component leader election service that only uses a single leader election per component.

Issue Links

• causes: FLINK-30313 Flink Kubernetes Operator seems to rely on 1.15 k8s HA code but 1.16 config code
• is related to: FLINK-25432 Introduce common interfaces for cleaning up local and global job data
• is related to: FLINK-24038 DispatcherResourceManagerComponent fails to deregister application if no leading ResourceManager
• is required by: FLINK-26522 FLIP-285: Refactoring code for multiple component leader election
• relates to: FLINK-30338 Clean leader election legacy code
• links to: GitHub Pull Request #19438