RDS(DM) Connection Parameters
RDS(DM) connections can connect to DM databases.
Parameter |
Mandatory |
Description |
---|---|---|
Data Connection Type |
Yes |
For RDS(DM) connections, RDS(DM) is selected by default and cannot be changed. |
Name |
Yes |
Name of the data connection to create. Data connection names can contain a maximum of 100 characters. They can contain only letters, digits, underscores (_), and hyphens (-). |
Description |
No |
A description which can help identify the data connection more easily. It can contain a maximum of 100 characters. |
Tag |
No |
Attribute of the data connection to create. Tags make management easier.
NOTE:
The tag name can contain only letters, digits, and underscores (_) and cannot start with an underscore (_) or contain more than 100 characters. |
Applicable Modules |
Yes |
Select the modules for which this connection is available.
NOTE:
|
Basic and Network Connectivity Configuration |
||
IP Address or Domain Name |
Yes |
Address for accessing the relational database through an internal network. Enter an IP address or domain name. If the data source is an on-premises database such as a DM database, you can obtain the access address from the database administrator. |
Port |
Yes |
Port for accessing the relational database Ensure that you have enabled this port in the security group rule so that the DataArts Studio instance can connect to this database through this port. If the data source is an on-premises database such as a DM database, you can obtain the access address from the database administrator. |
KMS Key |
Yes |
KMS key used to encrypt and decrypt data source authentication information. Select a default or custom key.
NOTE:
|
Agent |
Yes |
RDS is not a fully managed service and cannot be directly connected to DataArts Studio. A CDM cluster can provide an agent for DataArts Studio to communicate with non-fully-managed services. Therefore, you need to select a CDM cluster when creating an RDS data connection. If no CDM cluster is available, create one first by referring to Creating a CDM Cluster. As a network proxy, the CDM cluster must be able to communicate with RDS. To ensure network connectivity, the CDM cluster must be in the same region and AZ and use the same VPC and subnet as RDS. The security group rule must also allow the CDM cluster to communicate with RDS.
NOTE:
If a CDM cluster functions as the agent for a data connection in Management Center, the cluster supports a maximum of 200 concurrent active threads. If multiple data connections share an agent, a maximum of 200 SQL, Shell, and Python scripts submitted through the connections can run concurrently. Excess tasks will be queued. You are advised to plan multiple agents based on the workload. |
Data Source Driver Configuration |
||
Driver Name |
Yes |
dm.jdbc.driver.DmDriver: Select this driver name for the Dameng database. |
Driver File Path |
Yes |
It specifies the OBS path where the driver file is located. You need to download a .jar driver file from the corresponding official website and upload it to OBS. Obtain DmJdbcDriver18.jar (DM JDBC driver package) from the DM installation directory DmJdbcDriver17.jar.
NOTE:
|
Data Source Authentication and Other Function Configuration |
||
Username |
Yes |
Username of the database. The username is required for creating a cluster. |
Password |
Yes |
Password for accessing the database. The password is required for creating a cluster. |
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