Use of Message Brokers
Consider using message brokers that support clustering and load balancing out of the box, such as RabbitMQ or Apache Kafka, to simplify scaling. Use cloud-based message queue services that provide auto-scaling capabilities based on demand, such as Amazon SQS or Azure Service Bus.
How to Scale Message Queue?
Scaling a message queue system involves increasing its capacity to handle a larger volume of messages and/or increasing its ability to handle message processing more efficiently.
Below are some strategies for scaling a message queue system: