Yifan Cai created CASSSIDECAR-491:
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Summary: singleThreadExecutorService is never shut down in
RequestExecutor#close()
Key: CASSSIDECAR-491
URL: https://issues.apache.org/jira/browse/CASSSIDECAR-491
Project: Sidecar for Apache Cassandra
Issue Type: Bug
Reporter: Yifan Cai
RequestExecutor#close() only closes the underlying httpClient and never shuts
down its internal singleThreadExecutorService (a ScheduledExecutorService used
to schedule retry attempts). Since that executor's thread is non-daemon, every
closed RequestExecutor leaks one thread, which prevents clean JVM shutdown and
accumulates in long-running processes or test suites that create multiple
RequestExecutor instances.
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