Help Center/ Migration Center/ User Guide/ New Edition/ Big Data Verification/ Creating a Source Connection/ Creating a Connection to a Source Cloud Service
Updated on 2025-01-17 GMT+08:00
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Creating a Connection to a Source Cloud Service

To verify the consistency of data stored using big data cloud services, you need to establish connections between MgC and the source and target cloud services.

The supported source big data cloud services include:

  • MaxCompute
  • ApsaraDB for ClickHouse

Procedure

  1. Sign in to the MgC console. In the navigation pane, under Project, select a big data migration project from the drop-down list.
  2. In the navigation pane on the left, choose Migrate > Big Data Verification.
  3. If you are performing a big data verification with MgC for the first time, select your MgC Agent to enable this feature. Click Select MgC Agent. In the displayed dialog box, select the MgC Agent you connected to MgC during preparations from the drop-down list.

    Ensure that the selected MgC Agent is always Online and Enabled before your verification is complete.

  4. In the Features area, click Preparations.
  5. Choose Connection Management and click Create Connection.

    Figure 1 Creating a connection

  6. Select the big data cloud service you use and click Next.
  7. Configure the connection parameters based on the big data cloud service you selected.

    Table 1 Parameters for creating a connection to MaxCompute

    Parameter

    Configuration

    Connection To

    Select Source.

    Connection Name

    The default name is MaxCompute-4 random characters (including letters and numbers). You can also customize a name.

    MgC Agent

    Select the MgC Agent you prepared.

    Alibaba Cloud Credential

    Select the credential of the source Alibaba Cloud account. For details about how to add credentials, see "Big data - MaxCompute" in Adding Resource Credentials.

    MaxCompute Project

    Enter the name of your MaxCompute project. You can obtain the project name from the MaxCompute console.

    Endpoint

    Enter the endpoint of the region where the MaxCompute project is located.

    For details about MaxCompute endpoints in different regions, see MaxCompute Endpoints.
    Table 2 Parameters for creating a connection to ApsaraDB for ClickHouse

    Parameter

    Configuration

    Connection To

    Select Source.

    Connection Name

    The default name is ApsaraDB for ClickHouse-4 random characters (including letters and numbers). You can also customize a name.

    MgC Agent

    Select the MgC Agent you prepared.

    ClickHouse Credential

    Select the ApsaraDB for ClickHouse credential added to the MgC Agent. For details about how to add credentials, see "Big data - ClickHouse" in Adding Resource Credentials.

    Database URL

    Enter the public address of the source ClickHouse cluster. You can view the IP address in the cluster details.

  8. Click Test. MgC verifies whether the cloud service can be connected using the information you provided. If the test is successful, the connection can be set up.
  9. After the connection test is successful, click Confirm. The cloud service connection is created.
  10. On the Connection Management page, view the created connection and its basic information. In the Operation column, click Modify to modify the connection settings.