apache kafka books

1. Why do we need MQ?(1) Peak and fill ValleyTake the order system and settlement system scenario, if the order system calls the billing system through the RPC framework,The amount of orders generated in the event of a peak sale can be very large, and because the order is generated very quickly,This will inevitably cause system pressure to the settlement system, the server utilization will be high, but in the peak point of time the order volume is smaller,The server utilization of the clearing s

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