ApsaraMQ for RocketMQ:Step 2: Create resources

Limits

• Regions

  Make sure that the ApsaraMQ for RocketMQ instance resides in the same region as the VPC and vSwitch that you created in the "Before you start" section of this topic.

• Naming conventions

  For information about the naming conventions of ApsaraMQ for RocketMQ instances, topics, and consumer groups, see Quotas and limits.

• Message types of topics

  The message type of a topic must be consistent with the type of message that the topic sends and receives. For example, if you create a topic that is used to send and receive normal messages, you can use it to send and receive only normal messages. For more information, see Usage notes.

Create an instance

1. Log on to the ApsaraMQ for RocketMQ console. In the left-side navigation pane, click Instances.

2. In the top navigation bar, select a region, such as China (Hangzhou).

3. On the Instances page, click Create Instance. In the Create Message Queue for Apache RocketMQ Instance panel, set the Instance Version parameter to V5.0 and configure the Billing Method parameter. Then, click OK.

   ApsaraMQ for RocketMQ supports the following billing methods:

   • Subscription: An upfront payment is required based on the computing specification and subscription duration (in months) that you select for an instance.

   • Pay-as-you-go: Fees are post-paid based on the computing specification that you select for an instance and the actual usage duration (in hours) of the instance.

   For information about the billable items and scenarios of different billing methods, see Overview.

4. In the buy panel that appears, select the specifications of the instance and click Buy Now. Then, follow the on-screen instructions to complete the payment.

   The following table provides an example on how to configure the parameters in the buy panel. For information about the specifications that are displayed in the buy panel, see Instance selection.

   Parameter	Example
   Primary Edition	Standard Edition
   Sub-category Edition	Cluster High-availability Edition (Recommended for Production Environments)
   Computing Specification	rmq.s2.2xlarge
   VPC ID	vpc-bp1cg09dua6sgh0****** The value of this parameter is the ID of the VPC that you created in the "Before you start" section of this topic. Important After you create an ApsaraMQ for RocketMQ instance, you cannot change the VPC in which the instance is deployed. If you want to change the VPC in which an ApsaraMQ for RocketMQ instance is deployed, you must release the instance and purchase a new instance.
   VSwitch ID	vsw-bp1vqb0p9nz3irz****** The value of this parameter is the ID of the vSwitch that you created in the "Before you start" section of this topic. Important After you create an ApsaraMQ for RocketMQ instance, you cannot change the vSwitch with which the instance is associated. If you want to change the vSwitch with which an ApsaraMQ for RocketMQ instance is associated, you must release the instance and purchase a new instance.
   Internet Access	Disable Note In this example, the client is connected to the ApsaraMQ for RocketMQ broker in a VPC. By default, Internet access is disabled. If you want to access ApsaraMQ for RocketMQ over the Internet, set this parameter to Enable.
   Resource Group	In this example, the default resource group is selected.

Obtain the endpoint of an instance

1. On the Instances page, click the name of the instance that you want to manage.

2. In the TCP Endpoint section of the Instance Details page, view the endpoints of the instance.

   • VPC endpoint: The endpoint that is used to access the ApsaraMQ for RocketMQ instance in a VPC. This is the default endpoint provided by ApsaraMQ for RocketMQ.

   • Public endpoint: The endpoint that is used to access the ApsaraMQ for RocketMQ over the Internet. The public endpoint is displayed only if you enable Internet access.

Obtain the username and password of an instance

When you connect a client to an ApsaraMQ for RocketMQ broker, whether to specify the username and password of the instance is determined by the access method.

• If you access the ApsaraMQ for RocketMQ broker over the Internet, you must specify the username and password of the instance.

• If you access the ApsaraMQ for RocketMQ broker in a VPC, you do not need to specify the username or password of the instance. The system intelligently identifies the user based on the VPC endpoint.

Create a topic

1. On the Instances page, click the name of the instance that you want to manage.

2. In the left-side navigation pane, click Topics. On the Topics page, click Create Topic.

3. In the Create Topic panel, enter a topic name and description, set the Message Type parameter to Normal Message, and then click OK.

Create a consumer group

1. On the Instances page, click the name of the instance that you want to manage.

2. In the left-side navigation pane, click Groups. On the Groups page, click Create Group.

3. In the Create Group panel, configure the Group ID parameter and click OK. You can use the default values for other parameters in the panel.