Ensure that your AWS MQ brokers are using the active/standby deployment mode for high availability. The MQ active/standby deployment mode includes two broker instances configured in a redundant pair. To implement this model, AWS MQ service creates a single broker instance in one Availability Zone (AZ) and another standby broker instance in a different AZ. The broker instances communicate with your web application, with each other, and with a shared AWS storage location.
With the active/standby deployment mode enabled, as opposed to the single-broker mode (enabled by default), you can achieve high availability for your Amazon MQ brokers as the service provides automatic failover capability.
To determine the deployment mode for your AWS MQ brokers, perform the following:
To enable active/standby deployment mode for your existing Amazon MQ brokers, you must re-create them with the necessary high availability configuration. To relaunch the required MQ brokers, perform the following: