Myasuka opened a new pull request, #23764: URL: https://github.com/apache/flink/pull/23764
## What is the purpose of the change As [FLINK-24819](https://issues.apache.org/jira/browse/FLINK-24819) described, the k8s API server would receive more pressure when HA is enabled, due to the configmap watching being achieved via filter with labels instead of just querying the configmap name. This could be done after [FLINK-24038](https://issues.apache.org/jira/browse/FLINK-24038), which reduced the number of configmaps to only one. ## Brief change log - Introduce new API named `FlinkKubeClient#createConfigMapSharedWatcher(String)` and use this API to create watcher. - Delete useless `FlinkKubeClient#createConfigMapSharedWatcher(Map<String, String> labels)` and `FlinkKubeClient#deleteConfigMapsByLabels` APIs. ## Verifying this change This change added tests and can be verified as follows: - Modified test `KubernetesLeaderElectionAndRetrievalITCase` - Modified test `KubernetesTestFixture` ## 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 -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
