XComp opened a new pull request, #22601:
URL: https://github.com/apache/flink/pull/22601
## What is the purpose of the change
The `contenderID` is something that shall be hidden from the contender by
providing the `LeaderElection` abstraction. The contender ID shall be specified
in the `HighAvailabilityServices` and defines the location of the
`LeaderInformation` within the HA backend (i.e. ZK or k8s).
## Brief change log
* Adds `contenderID` as a parameter to
`LeaderElectionService.createLeaderElection`
* Updates the `AbstractLeaderElectionService` to rely on the `contenderID`
for the lifecycle of the contender within the `LeaderElectionService`
## Verifying this change
* Existing tests should work as usual
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): no
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: no
- The serializers: no
- The runtime per-record code paths (performance sensitive): no
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn, ZooKeeper: yes
- The S3 file system connector: no
## Documentation
- Does this pull request introduce a new feature? no
- If yes, how is the feature documented? not applicable
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