Abstract: The present disclosure provides for a system that dynamically adjusts how the system distributes messages to a set of consumers. The system measures a quantity of consumers in communication with the system. The system also measures performance metrics of each respective consumer of the set of consumers. In response to a change in the quantity of consumers, or to one or more performance metrics of an individual consumers meeting, or failing to meet, a respective predetermined threshold, the system may adjust a cache size the system attributes to the individual consumer and accordingly may adjust how the system distributes messages to the individual consumer. For instance, the system may distribute more or less messages to the individual consumer. The individual consumer may also communicate a maximum cache limit it is able to receive in messages from the system.