Create a Hologres compute source

Procedure

1. On the Dataphin home page, in the top menu bar, choose Planning > Compute Source.

2. On the Compute Source page, click + Add Compute Source, and then select Hologres Compute Source.

3. On the Create Hologres Compute Source page, configure the parameters.

   • Basic information

     Parameter	Description
     Compute Source Type	Select Hologres.
     Compute Source Name	The name must meet the following requirements: Can contain only Chinese characters, digits, letters, underscores (_), and hyphens (-). The name can be up to 64 characters in length.
     Compute Source Description	A brief description of the compute source, up to 128 characters in length.

   • Configuration

     Parameter	Description
     JDBC URL	The endpoint of the Hologres compute source, in the format jdbc:postgresql://host:port/dbname.
     Schema	Enter the schema of the compute engine database.
     Username, Password	The credentials used to connect to the compute source. For a RAM user, enter the AccessKey ID and AccessKey secret. For a self-managed database account, enter the account ID and password.
     Access Method	Select Public IP or VPC Network. Public IP: For a self-managed database, you must grant public access permissions. VPC Network: Region: The region where the database is located. Only databases in the same region as the Dataphin instance are supported. For example, if your Dataphin instance is in the China (Shanghai) region, you can select only the China (Shanghai) region. VPC ID: Enter the ID of the virtual private cloud (VPC) where the database is located. You can log on to the VPC console to view the ID. The following figure shows an example: Instance ID: Enter the VPC-connected instance ID. You can first obtain the corresponding Hologres instance ID from the instance list in the Hologres console. Then invoke GetInstance to obtain VpcInstanceId, which is the VPC-connected instance ID. The following figure shows how to obtain the Hologres instance ID:

4. Click Test Connection.

   If the connection test fails with the VPC_GRANT_ACCESS_API_ERROR error, see Solution for the VPC_GRANT_ACCESS_API_ERROR error for troubleshooting.

5. After a successful connection test, click Submit.