Connect to Alibaba Hologres

Steps

Please follow the steps below to connect to the Alibaba Hologres data source.

1. Click "New Data Connection" in the upper right corner of the data connection page.

2. Select the Alibaba Hologres data source from the list of data source types.

3. Fill in the required parameters for the data source connection as prompted.

   Connection Configuration Information Description | Field | Description | | ------------------------------------- | -------------------------------------------------------------------------------------------------------------- | | Name | The name of the connection. Required and unique within the user. | | Host Address | The address of the database. If the URL field is filled in, the value in the URL will take precedence. | | Port | The port of the database. If the URL field is filled in, the value in the URL will take precedence. | | Username | The username for the database. | | Password | The password for the database. | | Database | The name of the database. | | Schema | The schema under the database. | | Max Connections | The maximum number of connections in the connection pool. | | Prefer using database comment as dataset title | Whether to display the table name or the table comment as the title. | | URL | The JDBC URL of the database. | | Hierarchical loading of schema and tables | Default is off. When enabled, schemas and tables are loaded hierarchically. Only schemas are loaded during connection; you need to click the schema to load the tables under it. | | Query Timeout (seconds) | Default is 600. If the data volume is large, you can increase the timeout as appropriate. | | Allow Write Operations | Indicates that this connection can be selected as an output connection in Data Integration and Batch Sync. You must have write permissions on the database and pass verification before configuring this parameter. | | Support uploading files to specified path | Indicates the name of the database where tables generated when creating a local file dataset are stored. You must have write permissions on the database and pass verification before configuring this parameter. | | Show only tables under specified database/schema | When this option is selected and the database field is not empty, only tables under the specified database will be displayed. |

   4. After filling in the parameters, click the Validate button to get the validation result (this checks the connectivity between HENGSHI SENSE and the configured data connection; you cannot add the connection if validation fails).
   5. After validation passes, the Allow Write Operations and Support uploading files to specified path options will be enabled. You can choose whether to enable these two options.
   6. Click Execute Preset Code to pop up the preset code for this data source, then click the execute button.
   7. Click the Add button to add the Alibaba Hologres connection.

Please note

1. Parameters marked with * are required; other parameters are optional.
2. You must execute the preset code when connecting to the data source. Failure to do so may result in certain functions being unavailable during data analysis. In addition, when upgrading from a version prior to 4.4 to 4.4, you need to execute the preset code for existing data connections in the system.