Can you explain what the term pull broker means in the context of message exchange?

The term "pull broker" in the context of messaging means a message broker where the consumer independently requests ("pulls") messages from a queue or topic.

In the pull broker model, the consumer initiates message retrieval, controlling the speed and timing of receipt, which allows for better load management and processing.

The opposite model is the push broker, where the broker sends ("pushes") messages to the consumer as soon as they appear.

Example: In Apache Kafka, a pull model is used, where the consumer requests messages from topic partitions at its discretion.