Dataphin:Create a StarRocks compute source

Procedure

1. In the top navigation bar of the Dataphin homepage, choose Plan > Compute Source.

2. On the Compute Source page, click Add Compute Source and select StarRocks Compute Source.

3. On the Create StarRocks Compute Source page, configure the following parameters.

   Reference a specific cluster

   Parameter		Description
   Basic information	Compute type	Select StarRocks.
   	Compute source name	The compute source name can contain Chinese characters, letters, digits, underscores (_), and hyphens (-).
   	Configuration method	Select Reference a specific cluster. From the drop-down list, select a cluster that you are permitted to use. Click View to go to the View StarRocks page to view cluster details. If the required cluster is not available, click Configure Cluster to go to the Create StarRocks Cluster page and create a new cluster. Note Changes to the cluster information are automatically synchronized to this compute source.
   	Compute source description	Enter a brief description for the compute source. The description can be up to 128 characters long.
   Configuration	JDBC URL	The JDBC URL defaults to the one configured for the selected StarRocks cluster and cannot be modified.
   	Catalog	You can select Default Catalog or External Catalog. Default Catalog: Used to manage internal data in StarRocks. External Catalog: You can select from all external catalogs in the cluster or manually enter a catalog name.
   	Database	You can select an existing database in the selected Catalog or enter a new database name.
   	Authentication	You can select Same as cluster or Custom. The default is Same as cluster. If you select Custom, you must enter a username and password for authentication. To ensure that tasks run properly, ensure the user has the required data permissions.
   Task resource group	Enable resource isolation	StarRocks uses resource groups and a classifier to isolate resources by routing tasks to specific groups. Dataphin lets you specify a resource group name for tasks based on priority. Use cluster default settings: Uses the default resource group settings that are configured for the selected cluster. Isolate resources by task priority: Select a Resource isolation method, such as Resource group or Compute group. You must also specify the resource group or compute group name for each priority: highest priority, high priority, medium priority, low priority, and lowest priority. Note Compute groups are supported only in EMR Serverless StarRocks v3.3 and later versions with storage-compute separation.

   Standalone configuration

   Parameter		Description
   Basic information	Compute type	Select StarRocks.
   	Compute source name	The compute source name can contain Chinese characters, letters, digits, underscores (_), and hyphens (-).
   	Configuration method	Select Standalone configuration.
   	Compute source description	Enter a brief description for the compute source. The description can be up to 128 characters long.
   Configuration	JDBC URL	Enter a JDBC URL in one of the following formats: jdbc:mysql:loadbalance://{fe1-host}:{port},{fe2-host}:{port},{fe3-host}:{port}/{database} jdbc:mysql://{host}:{port}/database?key1=value1&key2=value2
   	Catalog	Only Default Catalog is supported. To create a compute source from an External Catalog, use the Reference a specific cluster configuration method.
   	FE node URL	A comma-separated list of the connection addresses for the FE nodes. Example: fe_host1:http_port01,fe_host02:http_port02.
   	Username	Enter the username and password used to log on to the StarRocks database. To ensure tasks run correctly, ensure the user has the required data permissions.
   	Password
   Task resource group		StarRocks uses resource groups and a classifier to isolate resources by routing tasks to specific groups. Dataphin lets you specify a resource group name for tasks based on priority. Use default execution user: Uses the default execution user specified in the configuration above. Custom: You must specify a resource group for each priority: highest priority, high priority, medium priority, low priority, and lowest priority.

4. Click test connection to verify the compute source connection.

5. If the connection test is successful, click Submit.

   Once created, the StarRocks compute source can be assigned to a project. For more information, see Manage permissions and compute sources for a project space.