PolarDB:Connect to a PolarDB-X database

Procedure

1. Log on to the PolarDB for Xscale console.

2. In the top navigation bar, select the region where the target instance is located.

3. On the Instances page, click the PolarDB-X 2.0 tab.

4. Find the target instance and click its ID.

5. In the left-side navigation pane of the instance details page, choose ConfigurationManagement > Database management.

6. In the upper-right corner of the page that appears, click Log On to Database.

7. In the dialog box that appears, configure parameters described in the following table.

   Parameter	Description
   Database Type	By default, the value of this parameter is set to DRDS. You do not need to change the value. PolarDB-X is previously known as Distributed Relational Database Service (DRDS).
   Instance Region	By default, the region in which the current instance is deployed is selected. You do not need to change the value. Note If you want to log on to a database in a PolarDB-X instance that is deployed in another region, select the region in which the instance is deployed from the drop-down list.
   Instance ID	By default, the ID of the current instance is selected. You do not need to change the value. Note If you want to log on to a database in a PolarDB-X instance that is deployed in another region, select the ID of the instance from the drop-down list.
   Database	The name of the database. This parameter is optional.
   Database Account	The username of the account that is used to log on to the database.
   Database Password	The password of the account. Note If you select Remember password, you do not need to enter the username or password of the account the next time you log on to the database.
   Control Mode	The mode used to manage the database. Valid values: Flexible Management, Stable Change, and Security Collaboration.

   Note

   • This parameter is automatically set to Flexible Management the first time you use DMS to log on to the database. You can change the value of this parameter after you log on to the database. For more information, see Modify database instances and Control modes.

   • After you configure the parameters, you can click Test connection in the lower-left corner of the dialog box. If the database fails to be connected, troubleshoot given cluster information based on the error message. For example, check whether the username or password is correct.

   • DMS automatically adds the IP addresses and CIDR blocks of the DMS servers that are deployed in the same region as the PolarDB-X instance to the IP address whitelist of the instance. If the IP addresses and CIDR blocks fail to be added to the IP address whitelist of the instance, you must manually add them.

8. Click Login.