Fix lifecycle manager deadlock during shutdown (backport #5438) #5440
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* Fix lifecycle manager deadlock during shutdown Add stop() method to ServiceClient that cancels internal executor operations and call it in LifecycleServiceClient destructor to prevent deadlock when CTRL+C is pressed during lifecycle node bringup. This addresses issue #5437 where spin_until_future_complete can hang indefinitely during shutdown when bringup and shutdown sequences run concurrently. Co-authored-by: Steve Macenski <SteveMacenski@users.noreply.github.com> * Update service_client.hpp Signed-off-by: Steve Macenski <stevenmacenski@gmail.com> --------- Signed-off-by: Steve Macenski <stevenmacenski@gmail.com> Co-authored-by: claude[bot] <209825114+claude[bot]@users.noreply.github.com> (cherry picked from commit f7b6654)
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SteveMacenski
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Aug 11, 2025
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This PR fixes the lifecycle manager deadlock issue described in #5437.
Changes
stop()method toServiceClientthat cancels internal executor operationsstop()inLifecycleServiceClientdestructor to prevent deadlockProblem Addressed
When CTRL+C is pressed during lifecycle node bringup, a race condition can cause
spin_until_future_completeto hang indefinitely as bringup and shutdown sequences run concurrently.Solution
The
stop()method cancels any running spin operations on the internal executor, allowing proper shutdown coordination.Closes #5437
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This is an automatic backport of pull request #5438 done by Mergify.