Link to DDS

The DDS link is used to synchronize data from Document Database Service (DDS) on HUAWEI CLOUD to a big data platform.

When connecting CDM to DDS, configure the parameters as described in Table 1.

Do not change the password or user when the job is running. If you do so, the password will not take effect immediately and the job will fail.

**Table 1** DDS link parameters
Parameter	Description	Example Value
Name	Link name, which should be defined based on the data source type, so it is easier to remember what the link is for	dds_link
Server List	List of server addresses. Enter each address in the format of IP address or domain name of the database server:port number, and separate the entered addresses with semicolons (;).	192.168.0.1:7300;192.168.0.2:7301
Database Name	Name of the DDS database to be connected	DB_dds
Username	Username used for logging in to DDS	cdm
Password	Password used for logging in to DDS	-
Is direct connection mode	This mode applies to the scenario where the network of the primary node is normal but that of the replica node is abnormal. NOTE: Only one IP address can be configured for the server list in direct connection mode. This mode applies to the scenario where the network of the primary node is normal but the network of the replica node is abnormal.	No