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Create a Dameng Data Source

Add a Dameng data source to NineData. You can then use it for Database DevOps, backup and restore, data replication, database comparison, and other supported features. This guide covers connection mode, credentials, environment settings, and the connection test.

Before you begin​

  • The server IP address of NineData has been added to the data source allowlist. The server IP address can be viewed by selecting the target region in Access Region on the Create Datasource page.

    server_ip_address

  • Make sure you have available data source quota; otherwise, the data source cannot be added. You can quickly check your remaining quota at the top-right corner of the NineData console.check_quota

Procedure​

  1. Log in to the NineData Console.

  2. On the left navigation pane, click Datasource > Datasource.

  3. Click Datasource tab, and click Create Datasource on the page. In the popup window for selecting the data source type, choose Database > (the type of data source to be added), and configure the parameters based on the table below on the Create Datasource page.
    tip

    If you make a mistake during the operation, you can click the arrow_down icon at the top of the Create Datasource page to make a new selection.

  1. Configure the data source parameters:

    Parameter
    		Description
    NameEnter a data source name. Use a meaningful name so you can find and manage it later.
    ConnectionSelect how NineData connects to the data source. Supported methods are IP Address, Gateway, and SSH Tunnel.
    • IP Address: Connect through the public network address.
    • Gateway: Use a NineData gateway for private-network access. Connect the host that runs the data source first. For instructions, see Add Gateway.
    • SSH Tunnel: Connect through an SSH tunnel.
    Select how NineData connects to the data source. Supported methods are IP Address and SSH Tunnel.
    • IP Address: Connect through the public network address.
    • SSH Tunnel: Connect through an SSH tunnel.
    Configuration items when Connection is IP AddressHost: The public network connection address and port of the data source.
    Configuration items when Connection is Gateway
    • Gateway: Select the NineData gateway installed on the host where the data source is located.
    • Host: Enter localhost if the data source is on the same host as the gateway, or enter the internal IP address of the host where the data source is located.
    Configuration items when Connection is SSH Tunnel
    • SSH Host: Enter the public IP address or domain name and SSH port of the server where the target data source is located. The default SSH port is 22.
    • SSH Authentication Method: Select the SSH authentication method.
      • Password: Connect with SSH Username and Password.
        • SSH Username: Enter the login username of the server where the target data source is located.
        • Password: Enter the login password of the server where the target data source is located.
      • Key (recommended): Connect with SSH Username and Key File.
        • SSH Username: Enter the login username of the server where the target data source is located.
        • Key File: Click Upload to upload the private key file, which is a key file without a suffix. If you have not created one yet, see Generate SSH Tunnel Key File.
        • Password: Enter the password set when the key file was generated. If no password was set during key generation, leave this field blank.
      • Note: After configuring SSH, click Connection Test to test the tunnel. Possible results:
      • Connection Successfully: The SSH tunnel is established.
      • Error message: The connection failed. Troubleshoot the cause and try again.
    • Host: Enter localhost if the data source is on the same host as the SSH server, or enter the internal IP address of the host where the data source is located.
    DB AccountEnter the login username for Dameng.
    DB PasswordEnter the login password for Dameng.
    Access RegionSelect the region closest to the Dameng host to help reduce network latency.
    EnvironmentChoose an environment based on the business purpose of the data source. This serves as an environment identifier of the data source. The default environments are PROD and DEV. You can also create a custom environment.
    Note: Under organization mode, the database environment can also be applied to permission policy management. For example, the default Prod Admin role can access only data sources in the PROD environment and cannot access data sources in other environments. For more information, see Manage Roles.

  2. After you configure all parameters, click Connection Test next to Create Datasource to test connectivity. When Connection Successfully is displayed, click Create Datasource to create the data source. Otherwise, review the connection settings and run the test again.

Result​

After the connection test succeeds and you create the data source, it appears in the data source list. You can use it in NineData features that support Dameng.