Create a TDH Inceptor data source

Limits

Only custom global roles with the Create Data Source permission and users who are assigned the super administrator, data source administrator, domain architect, or project administrator role can create data sources.

Procedure

1. In the top navigation bar of the Dataphin homepage, choose Management Center > Datasource Management.

2. On the Datasource page, click +Create Data Source.

3. On the Create Data Source page, select TDH Inceptor in the Big Data section.

   If you have recently used TDH Inceptor, you can also select it in the Recently Used section, or enter keywords in the search box to filter it.

4. On the Create TDH Inceptor Data Source page, configure the basic information of the data source.

   Parameter	Description
   Datasource Name	The name must meet the following requirements: The name can contain only Chinese characters, letters, digits, underscores (_), and hyphens (-). The name cannot exceed 64 characters in length.
   Datasource Code	After you configure the data source code, you can reference tables in the data source in Flink_SQL tasks in the format of data source code.table name or data source code.schema.table name. If you need to automatically access the data source in the corresponding environment based on the current environment, access the data source in the variable format of ${data source code}.table or ${data source code}.schema.table. For more information, see Flink_SQL task development method. Important The data source code cannot be modified after it is configured. You can preview data on the object details page in the asset directory and asset checklist only after the data source code is configured. In Flink SQL, only MySQL, Hologres, MaxCompute, Oracle, StarRocks, Hive, SelectDB, and GaussDB data warehouse service (DWS) data sources are currently supported.
   Version	You can select 6.2.x or 9.3.x.
   Data Source Description	A brief description of the data source. It cannot exceed 128 characters.
   Data Source Configuration	Select the data source that you want to configure: If the data source distinguishes between production data sources and development data sources, select Production + Development Data Source. If the data source does not distinguish between production data sources and development data sources, select Production Data Source.
   Tag	You can categorize and tag data sources based on tags. For information about how to create tags, see Manage data source tags.

5. Configure the connection parameters between the data source and Dataphin.

   If you select Production + Development Data Source, configure the connection information for both environments. If you select Production Data Source, configure the connection information for the production environment only.

   Note

   We recommend that you configure production and development data sources separately to achieve environment isolation. However, Dataphin also supports configuring them as the same data source with identical parameter values.

   Parameter	Description
   Cluster Configuration
   NameNode	The hostname or IP address and port of the NameNode in the HDFS cluster. Configuration example: host=192.x.x.169,webUiPort=,ipcPort=8020. In the TDH environment, webUiPort and IPCport are 50070 and 8020 by default. Specify ports based on your actual environment.
   Configuration File	Upload Hadoop configuration files such as hdfs-site.xml and core-site.xml, which you can export from the Hadoop cluster.
   Authentication Type	If the HDFS cluster does not require authentication, select No Authentication. If the HDFS cluster requires authentication, Dataphin supports selecting Kerberos. If you select Kerberos as the authentication method, you need to configure the following authentication information: Kerberos Configuration Method: KDDC Server: The unified service address of KDC. Multiple configurations are supported, separated by semicolons (;). Krb5 File Configuration: You need to upload the Krb5 file. HDFS Configuration: HDFS keytab File: The keytab file of HDFS, which is the Kerberos authentication file. HDFS Principal: The Kerberos authentication Principal name. Example: xxxx/hadoopclient@xxx.xxx.
   Inceptor Configuration
   JDBC URL	The JDBC URL for connecting to Inceptor. Format: jdbc:hive2//host:port/dbname.
   Authentication Type	If the Inceptor cluster does not require authentication, select No Authentication. If the Inceptor cluster requires authentication, select LDAP or Kerberos as needed: Kerberos: After selecting this option, you need to upload the Keytab File and configure the Principal. The Keytab File is the Kerberos authentication file. An example of Principal is xxxx/hadoopclient@xxx.xxx. LDAP: After selecting this option, you need to configure the username and password for LDAP authentication.
   Username	The username for connecting to Inceptor.
   Metadatabase Configuration
   Metadata Retrieval Method	Two retrieval methods are supported: Metadatabase and HMS. Metadatabase Method: You need to configure the database type, version, JDBC URL, authentication method, username, and password. Database Type: Select the database type based on the metadatabase type used in the cluster. Supported options include MySQL, PostgreSQL, and Inceptor. Version: If the database type is MySQL, you need to select the corresponding version. Supported versions include MySQL5.1.43, MySQL5.6/5.7, and MySQL8.0. JDBC URL: Fill in the connection address of the corresponding metadatabase. MySQL: The format is jdbc:mysql://host:port/dbname. PostgreSQL: The format is jdbc:postgresql://host:port/dbname. Inceptor: The format is jdbc:hive2://host:port/dbname. Authentication Method: If the database type is Inceptor, you need to fill in the authentication method. Three authentication methods are supported: No Authentication, LDAP, and Kerberos. If you use the Kerberos authentication method, you need to select Kerberos as the authentication method in the cluster configuration section. Username, Password: The username and password for logging in to the metadatabase. HMS Method: You need to configure the Authentication Method and upload hive-site.xml. Authentication Method: Supports No Authentication, LDAP, and Kerberos. If you use the Kerberos authentication method, you need to select Kerberos as the authentication method in the cluster configuration section. You also need to upload the Keytab File and fill in the Principal. hive-site.xml: Upload the hive-site.xml configuration file of the TDH Inceptor data source cluster.

6. Select Default Resource Group. This resource group is used to run tasks related to the current data source, including database SQL, offline database migration, data preview, and more.

7. Perform a Test Connection or directly click OK to save and complete the creation of the TDH Inceptor data source.

   Click Test Connection to verify connectivity between the data source and Dataphin. If you click OK directly, the system tests all selected clusters automatically. The data source can still be created even if connectivity tests fail.