Expose ShutdownManager poll interval to speed up TestWorkflowEnvironment teardown#2876
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Expose ShutdownManager poll interval to speed up TestWorkflowEnvironment teardown#2876brucearctor wants to merge 1 commit into
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Hi @brucearctor, thank you for your contribution. There are some minor issues that need to be addressed, but overall it's a great PR and hopefully we can get this merged soon.
Make the hard-coded 250ms CHECK_PERIOD_MS in ShutdownManager configurable through a new WorkerFactoryOptions.Builder#setShutdownCheckInterval(Duration) option. This allows test environments to use a much lower value (e.g. 1ms) to eliminate the shutdown polling overhead that dominates env-per-test teardown time (reported p50 = 506ms stock vs 7ms with a patched constant). The no-arg ShutdownManager constructor preserves the existing 250ms default for production use. When the option is set on WorkerFactoryOptions, WorkerFactory passes it through to the ShutdownManager constructor. Changes from review feedback: - Add DEFAULT_SHUTDOWN_CHECK_INTERVAL constant to WorkerFactoryOptions and apply it as default in validateAndBuildWithDefaults, similar to workflowCacheSize - Add @experimental annotation to setter and getter - Remove @nullable from field/getter since validated options always have the interval filled - Simplify WorkerFactory.doShutdown() by removing null check - Remove flaky/trivial ShutdownManagerTests, keep only validation tests - Update WorkerFactoryOptionsTest to verify default is 250ms Fixes temporalio#2869
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@maciejdudko -- thanks for the thorough review! addressed |
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Summary
Makes the hard-coded 250ms
CHECK_PERIOD_MSinShutdownManagerconfigurable through a newWorkerFactoryOptions.Builder#setShutdownCheckInterval(Duration)option.Motivation
Resolves #2869. In env-per-test setups the 250ms shutdown poll interval dominates teardown wall-time:
Changes
ShutdownManagerCHECK_PERIOD_MSfrom a static constant to a configurable instance field. No-arg constructor preserves the 250ms default. NewShutdownManager(int checkPeriodMs)constructor with validation.WorkerFactoryOptionsshutdownCheckIntervalfield +Builder#setShutdownCheckInterval(Duration)with positive-duration validation.WorkerFactoryShutdownManagerindoShutdown().Usage
Backward Compatibility
Fully backward compatible — the no-arg
ShutdownManager()constructor and defaultWorkerFactoryOptionspreserve the existing 250ms behavior.