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19.1.2. Rate limited flow control It is also possible to control the rate at which a consumer can consume messages. This is a form of throttling and can be used to make sure that a consumer never consumes messages at a rate faster than the rate specified. The rate must be a positive integer to enable this functionality and is the maximum desired message consumption rate specified in units of messages per second. Setting this to -1 disables rate limited flow control. The default value is -1. Please see Section 11.1.10, “Message Consumer Rate Limiting� for a working example of limiting consumer rate.