Modifying RabbitMQ Instance Specifications

Notes and Constraints

• To ensure that the instance runs properly, do not perform other operations on the instance during the modification.
• The price may change after the modification.

Prerequisites

A RabbitMQ instance has been created and is in the Running state.

Modifying RabbitMQ Instance Specifications

1. Log in to the console.
2. In the upper left corner, click and select a region.
   NOTE:

   Select the region where your RabbitMQ instance is.

3. Click and choose Application > Distributed Message Service for RabbitMQ to open the console of DMS for RabbitMQ.
4. Modify the instance specifications using either of the following methods:
   • In the row containing the desired instance, choose More > Modify Specifications.
   • Click the desired RabbitMQ instance to view its details. In the upper right corner, choose More > Modify Specifications.

5. Specify the required storage space, number of brokers, or bandwidth.
   • Expand the storage space.

     For Modify By, select Storage. For Storage Space per Broker, specify a new storage space.

     View the new storage space (Total storage space = Storage space per broker x Number of brokers) in the Used/Available Storage Space (GB) column in the instance list.

     NOTE:

     • Available storage space = Actual storage space – Storage space for storing logs – Disk formatting loss For example, if the storage space is expanded to 700 GB, the storage space for storing logs is 100 GB, and the disk formatting loss is 7 GB, then the available storage space after capacity expansion will be 593 GB.
     • Storage space expansion does not affect services.
   • Add brokers.

     For Modify By, select Brokers. Then, enter the number of brokers.

     View the number of brokers in the Specifications column in the instance list.

     NOTE:

     Services may temporarily stutter during the modification. Ensure that your client can auto-reconnect. Modify specifications during off-peak hours.

   • Increase or decrease the broker flavor.

     For Modify By, select Broker Flavor. Then, select a new flavor.

     View the broker flavor in the Flavor column of the instance list.

     NOTE:

     • RabbitMQ 3.x.x: For cluster instances without mirrored/quorum queues configured and single-node instances, services may stutter for several minutes during the modification. Ensure that your client can auto-reconnect. Modify specifications during off-peak hours.
     • RabbitMQ 3.x.x: For cluster instances configured with mirrored/quorum queues, services may stutter for several seconds during the modification. Ensure that your client can auto-reconnect. Modify specifications during off-peak hours.

6. Click Next, confirm the details, and click Submit.