OpenSource ClickHouse Connection Parameters

**Table 1** OpenSource ClickHouse connection
Parameter	Mandatory	Description
Data Connection Type	Yes	OpenSource ClickHouse 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 (-).
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: When the data migration job feature is enabled, you can select the DataArts Migration module. Then you can select this data connection when creating a data migration job in DataArts Factory. You can use offline processing migration jobs only after apply for the trustlist membership. To use this feature, contact customer service or technical support.
Basic and Network Connectivity Configuration
IP Address	Yes	IP address of the node where the ClickHouseServer is located
Port	Yes	Used to receive JDBC requests. By default, the value of the http_port parameter of ClickHouseServer is used.
KMS Key	Yes	KMS key used to encrypt and decrypt the authentication information for the data source
Agent	Yes	As a network proxy, the CDM cluster must be able to communicate with the ClickHouseServer. 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.