This topic provides answers to some commonly asked questions about ApsaraDB for MyBase.
- What is ApsaraDB for MyBase? What are the differences between ApsaraDB for MyBase and ApsaraDB for RDS?
ApsaraDB for MyBase consists of multiple hosts or servers, such as Elastic Compute Service (ECS) i2 instances and ECS Bare Metal instances. For more information, see Terms.
ApsaraDB for RDS instances that are created in ApsaraDB for MyBase inherit the features of regular ApsaraDB for RDS instances. Besides, they provide more benefits than regular instances. For more information, see Mechanisms and benefits.
- Can I access secondary instances?
No, you cannot access secondary instances. You can access only primary instances. Secondary instances serve only as backups and do not process user requests.
- How can I stop and release an instance in an ApsaraDB for MyBase dedicated cluster?
You cannot stop an instance in an ApsaraDB for MyBase dedicated cluster. You can release an instance in a dedicated cluster. Before you release an instance, we recommend that you download and save the backup file. Verify that the backup file is valid. After you release an instance, data in the instance is deleted and cannot be recovered. Before you release an instance, make sure that the instance is not in use. For more information, see Release or unsubscribe from an ApsaraDB RDS for MySQL instance.
- Are all the hosts of an ApsaraDB for MyBase dedicated cluster deployed in the same region? Can I create an ApsaraDB for MyBase
dedicated cluster that consists of hosts deployed in different regions?
Yes, all the hosts of an ApsaraDB for MyBase dedicated cluster are deployed in the same region. An ApsaraDB for MyBase dedicated cluster resides in only one region.
- Can I specify the host on which an instance is created in an ApsaraDB for MyBase dedicated cluster?
Yes, you can specify a host when you create an ApsaraDB RDS for MySQL database instance. If you do not specify a host, the system allocates the instance to a host based on the specified resource allocation policy. For more information, see Create a MyBase for MySQL instance.
- Why does an error message appear when I use Microsoft Edge to create an ApsaraDB for MyBase dedicated cluster?
The possible cause is that Microsoft Edge is incompatible with the service. We recommend that you use Google Chrome.
- Can I log on to and manage hosts?
Yes, you can apply for a host account and log on to the host through Bastionhost to perform operations.
- Can I migrate a pay-as-you-go or subscription instance to a host in a dedicated cluster?
No, you cannot migrate a pay-as-you-go or subscription instance to a host in a dedicated cluster. The feature will be available in later versions.
- Which database engines support storage plans?
Dedicated clusters that run ApsaraDB RDS for MySQL, ApsaraDB RDS for SQL Server, and ApsaraDB RDS for PostgreSQL support storage plans. Regular databases that support storage plans include RDS and HBase.
- Why can I select only Enterprise Edition when I create an instance in a dedicated
cluster that runs ApsaraDB RDS for MySQL and has three hosts? Why cannot I select
You must submit a ticket to apply for the permissions to create a high-availability edition instance.
Why do I need to pay additional fees for subscription hosts?
If you select enhanced SSDs as the storage type of your hosts in ApsaraDB for MyBase, the subscription fee covers only the CPU and memory resources of the hosts. The storage space that you need to create instances is charged when you create the instances. If you select local SSDs as the storage type of your hosts in ApsaraDB for MyBase, you do not need to pay additional fees when you create instances.