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Processor State and Execution Order
Processor is executing (semi-)chronologically: It might not have consistent ordering among all the different Handlers and Filters. So please DO NOT ASSUME any order when you write the logic inside the processor. For example, if you are using global variables, please DO NOT assume if ordering of access from different handlers.
DO NOT assume processor in-memory state is restart-safe. Thus, please DO NOT rely on global variables being persistent at all time.