Help Center/ DataArts Studio/ User Guide/ DataArts Migration (CDM Jobs)/ Creating a Link in a CDM Cluster/ Configuring Link Parameters/ MongoDB Link Parameters
Updated on 2026-07-06 GMT+08:00
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MongoDB Link Parameters

This link is used to transfer data from a third-party cloud MongoDB service or MongoDB created in the on-premises data center or ECS to a big data platform.

When connecting CDM to an on-premises MongoDB database, configure the parameters as described in Table 1.

  • MongoDB data sources with SSL enabled are not supported.
  • Do not change the password or user when a job is running. If you do so, the password will not take effect immediately and the job will fail.
Table 1 MongoDB 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

mongodb_link

Server List

List of MongoDB 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

Authentication Database

The name of the database used for user authentication. It is the value of the authSource parameter in the connection string. By default, the MongoDB account is created in the admin database, so the value "admin" is recommended for this parameter.

admin

Username

Username for logging in to MongoDB

cdm

Password

Password for logging in to MongoDB

-

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.

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

Connection Properties

Custom link attributes. The MongoDB attributes are supported. The unit is ms. The link attributes are as follows:

  • socketTimeout: The default value is 60000.
  • maxWaitTime: The default value is 10000.
  • connectTimeout. The default value is 10000.
  • serverSelectionTimeout: The default value is 5000.

socketTimeout=60000