ifndef-SleePy opened a new pull request #9568: [Flink-12164][tests] Harden JobMasterTest#testJobFailureWhenTaskExecutorHeartbeatTimeout URL: https://github.com/apache/flink/pull/9568 ## What is the purpose of the change * Harden unstable case `JobMasterTest#testJobFailureWhenTaskExecutorHeartbeatTimeout` ## Brief change log * Introduce factory pattern for `HeartbeatMonitor`. So that we could inject codes for testing. * Enrich `TestingHeartbeatServices` by supporting manually triggering timeout * Use `TestingHeartbeatServices` to trigger timeout manually for `JobMasterTest#testJobFailureWhenTaskExecutorHeartbeatTimeout` instead of the heartbeat service with a short heartbeat timeout threshold ## Verifying this change * This change is about testing * Verify the change by re-running the relevant cases ## 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, Yarn/Mesos, ZooKeeper: no - 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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