This document describes what an instance is and how to view the instance list and manipulate an instance.
Instance overview
An instance is a database resource in Tencent Cloud. A cluster is the basic management unit of TDSQL-C for MySQL, which can contain multiple instances of two types: read-write instance and read-only instance.
The types and number of instances supported by a cluster are as described below:
Instance Type
Maximum Instances
Supported IP
Read-write instance
1
The private read-write address is enabled by default, and you can enable the public read-write address manually.
Read-only instance
15
The private read-only address is enabled by default, and you can enable the public read-only address manually.
Access address
TDSQL-C for MySQL supports read-write and read-only addresses. The former corresponds to the read/write service of a TDSQL-C for MySQL read-write instance, while the latter corresponds to one or multiple read-only instances on the backend for load balancing.
Instance management overview
You can configure and manage instances in a cluster in the console, with the following configuration items:
Instance Configuration Item
Description
Operation
Instance Name
a. You can rename read-write/read-only instances in the cluster.
b. The instance name can contain up to 60 letters, digits, hyphens, underscores, and dots.
On the cluster management page, proceed according to the actually used view mode.
Tab view
List view
1. Log in to the TDSQL-C for MySQL console, and click the target cluster in the cluster list on the left to enter the cluster management page.
2. On the Cluster Details page, view all the read-write instance and read-only instances in the cluster.
3. If there are many read-only instances under the cluster, you can click the icon under the read-only instance to switch to view. If you have 5 or more read-only instances, you can also click the drop-down button on the right of the icon to filter out the target instance ID.
4. You can view the information of the read-write instance and read-only instance: instance ID/name/status, and public/ private read-write/read-only address. You can also perform the following operations on the instance: restart the instance, modify the instance name, modify the private network address, enable or disable the public network address, restart the instance, adjust the configuration, or terminate the instance. Then, you can click Details to enter the corresponding instance details page.
5. On the instance details page, you can view the basic information, configuration information, and maintenance information of the instance, as well as the operation log of the instance.
2. Select the region at the top, find the target cluster in the cluster list, and click the cluster ID or Manage in the Operation column to enter the cluster management page.
3. On the cluster management page, select the Instance List tab to view the list of read-write and read-only instances in the cluster.
The instance list displays the Instance ID/Name, Monitoring, AZ, Private/Public Network Address, Expiration Time, Instance Type, Instance Status, Instance Configuration, and Operation by default.
If there are many instances in the cluster, you can also enter an instance ID or name keyword in the search box on the right to quickly find the target instance.
Click the instance ID to enter the instance details page, where you can query the instance information and operation logs.
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