Fix SingletonListener lock leak when inner listener fails to start#3193
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When _innerListener.StartAsync throws (e.g., storage error), the acquired blob lease was never released because _isListening was not set to true, so StopAsync/Dispose would skip the release. Wrap _innerListener.StartAsync in try-catch in both StartAsync and TryAcquireLock to release the lock on failure, preventing the instance from holding the lease until recycled and blocking all other instances. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
jviau
approved these changes
Apr 16, 2026
This was referenced May 15, 2026
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When _innerListener.StartAsync throws (e.g., storage error), the acquired blob lease was never released because _isListening was not set to true, so StopAsync/Dispose would skip the release.
Wrap _innerListener.StartAsync in try-catch in both StartAsync and TryAcquireLock to release the lock on failure, preventing the instance from holding the lease until recycled and blocking all other instances.