Background
When a large number of messages need to be processed, expanding the RocketMQ instance is a common solution. Expansion can increase the throughput, storage capacity, and availability of a RocketMQ cluster. DMS RocketMQ provides three types of expansion solutions (node, specification, and disk) to better meet user requirements in different scenarios.
l Node expansion: Add nodes to RocketMQ cluster to increase the throughput and reliability of the system. Through expansion, you can distribute the loads of sending and consuming messages to more nodes, improving the concurrency processing capacity of the system.
l Specification expansion: Increases the processing power and performance of the system by increasing RocketMQ resources.
l Disk expansion: Increases the storage capacity of the disk to more messages.
Procedure
(1) Log in to the management console.
(2) Go to the RabbitMQ console.
(3) The purchased RabbitMQ instances are listed here. Select the instance that needs to be expanded, click More - Disk Expansion/Specification Expansion/Node Expansion.
Expansion Description
l Disk expansion: Increase instance disk space. Select the required disk space and click OK to place an order for expansion.
l Specification expansion: Upgrade the specification of the instance, select the required specification and click OK to place an order for expansion.
l Node expansion: Increase the number of nodes out of the four node numbers 3/5/7/9. Select the required number of nodes and click OK to place an order for expansion.