Use locks to serialize arm/disarm actions #1066
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…duce nesting where possible
danielmarbach
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Oct 1, 2024
src/Transport/Receiving/RepeatedFailuresOverTimeCircuitBreaker.cs
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DavidBoike
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* Use locks to serialize arm/disarm actions * Explicit state lock, Volatile read of state outside lock, actually reduce nesting where possible * Small cosmetics for better readability * Better logging * Verbose comment * Even better logging * Basic test coverage --------- Co-authored-by: danielmarbach <danielmarbach@users.noreply.github.com>
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* Use locks to serialize arm/disarm actions * Explicit state lock, Volatile read of state outside lock, actually reduce nesting where possible * Small cosmetics for better readability * Better logging * Verbose comment * Even better logging * Basic test coverage --------- Co-authored-by: danielmarbach <danielmarbach@users.noreply.github.com>
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* Use locks to serialize arm/disarm actions * Explicit state lock, Volatile read of state outside lock, actually reduce nesting where possible * Small cosmetics for better readability * Better logging * Verbose comment * Even better logging * Basic test coverage --------- Co-authored-by: danielmarbach <danielmarbach@users.noreply.github.com>
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* Use locks to serialize arm/disarm actions * Explicit state lock, Volatile read of state outside lock, actually reduce nesting where possible * Small cosmetics for better readability * Better logging * Verbose comment * Even better logging * Basic test coverage --------- Co-authored-by: danielmarbach <danielmarbach@users.noreply.github.com>
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…1062) * Address races in the repeated failure circuit breaker by introducing explicit state transitions (#1057) * Use locks to serialize arm/disarm actions (#1066) * Use locks to serialize arm/disarm actions * Explicit state lock, Volatile read of state outside lock, actually reduce nesting where possible * Small cosmetics for better readability * Better logging * Verbose comment * Even better logging * Basic test coverage --------- Co-authored-by: danielmarbach <danielmarbach@users.noreply.github.com> * Adapt update to older C# version --------- Co-authored-by: Daniel Marbach <daniel.marbach@openplace.net> Co-authored-by: danielmarbach <danielmarbach@users.noreply.github.com>
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* Address races in the repeated failure circuit breaker by introducing explicit state transitions (#1057) * Try address races in the repeated failure circuit breaker * Address races in the repeated failure circuit breaker * Improve log message --------- Co-authored-by: danielmarbach <danielmarbach@users.noreply.github.com> * Update the processing capacity consistently together with the prefetch count to make sure during throttling the number of prefetched messages is kept aligned with the settings of the user (#1058) Co-authored-by: danielmarbach <danielmarbach@users.noreply.github.com> * Use locks to serialize arm/disarm actions (#1066) * Use locks to serialize arm/disarm actions * Explicit state lock, Volatile read of state outside lock, actually reduce nesting where possible * Small cosmetics for better readability * Better logging * Verbose comment * Even better logging * Basic test coverage --------- Co-authored-by: danielmarbach <danielmarbach@users.noreply.github.com> --------- Co-authored-by: Daniel Marbach <daniel.marbach@openplace.net> Co-authored-by: danielmarbach <danielmarbach@users.noreply.github.com>
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* Address races in the repeated failure circuit breaker by introducing explicit state transitions (#1057) * Try address races in the repeated failure circuit breaker * Address races in the repeated failure circuit breaker * Improve log message --------- Co-authored-by: danielmarbach <danielmarbach@users.noreply.github.com> * Update the processing capacity consistently together with the prefetch count to make sure during throttling the number of prefetched messages is kept aligned with the settings of the user (#1058) Co-authored-by: danielmarbach <danielmarbach@users.noreply.github.com> * Use locks to serialize arm/disarm actions (#1066) * Use locks to serialize arm/disarm actions * Explicit state lock, Volatile read of state outside lock, actually reduce nesting where possible * Small cosmetics for better readability * Better logging * Verbose comment * Even better logging * Basic test coverage --------- Co-authored-by: danielmarbach <danielmarbach@users.noreply.github.com> --------- Co-authored-by: Daniel Marbach <daniel.marbach@openplace.net> Co-authored-by: danielmarbach <danielmarbach@users.noreply.github.com>
danielmarbach
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* Address races in the repeated failure circuit breaker by introducing explicit state transitions (#1057) * Try address races in the repeated failure circuit breaker * Address races in the repeated failure circuit breaker * Improve log message --------- Co-authored-by: danielmarbach <danielmarbach@users.noreply.github.com> * Update the processing capacity consistently together with the prefetch count to make sure during throttling the number of prefetched messages is kept aligned with the settings of the user (#1058) Co-authored-by: danielmarbach <danielmarbach@users.noreply.github.com> * Use locks to serialize arm/disarm actions (#1066) * Use locks to serialize arm/disarm actions * Explicit state lock, Volatile read of state outside lock, actually reduce nesting where possible * Small cosmetics for better readability * Better logging * Verbose comment * Even better logging * Basic test coverage --------- Co-authored-by: danielmarbach <danielmarbach@users.noreply.github.com> --------- Co-authored-by: Daniel Marbach <daniel.marbach@openplace.net> Co-authored-by: danielmarbach <danielmarbach@users.noreply.github.com>
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Serializing the arm/disarm actions is not enough. The state transition preceding the arm/disarm action must be captured in the lock as well, otherwise the state transitions could happen properly but then the arm/disarm actions could be executed by the processor in the wrong order, leaving the logic of the circuit breaker itself intact but the consequences of the arm/disarm actions in an incorrect state.
I also added xdoc as a way to document that the arm/disarm actions are called within a lock, and to maybe pave the way for this to be used as a shared component.