The ordering guarantees specified in the spec are overpromising. The sender can't rely on the function calls being executed in order, and the calls are not really just like a FIFO queue, because there's no delivery guarantee for requests (the system can fail them at any time).
The ordering guarantees specified in the spec are overpromising. The sender can't rely on the function calls being executed in order, and the calls are not really just like a FIFO queue, because there's no delivery guarantee for requests (the system can fail them at any time).