Help Center/ Migration Center/ User Guide/ New Edition/ Big Data Verification/ Preparations
Updated on 2025-01-17 GMT+08:00
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Preparations

Before using big data verification, complete the following preparations:

Preparing a Huawei Account

Before using MgC, prepare a HUAWEI ID or an IAM user that can access MgC and obtain an AK/SK pair for the account or IAM user. For details, see Preparations.

When you create a metadata connection, if you want to collect and view resource usage information, assign the read-only permission (ReadOnly) for MRS and DLI to the IAM user.

Creating a Big Data Migration Project

Migration projects allow you to group, isolate, and manage migration resources. For details, see Managing Migration Projects.

Installing the MgC Agent (Formerly Edge)

To verify big data consistency, you need to install the MgC Agent for Linux in your source environment. For details, see Installing the MgC Agent for Linux. After the MgC Agent is installed, connect the MgC Agent to MgC.

  • When connecting the MgC Agent to MgC, save the entered AK/SK pair of your Huawei Cloud account as the target credentials, which will be used for migration later.
  • The MgC Agent does not support automatic restart. Do not restart the MgC Agent during task execution, or tasks will fail.

Enabling Big Data Verification

  1. Sign in to the MgC console. In the navigation pane, under Project, select your big data migration project from the drop-down list.
  2. In the navigation pane on the left, choose Migrate > Big Data Verification.
  3. Click Select Edge Device.
  4. In the displayed dialog box, select the MgC Agent you connected to MgC from the drop-down list.

    • If an MgC agent is Online and Enabled, it has been used for big data verification in a project. You can click Confirm to continue using this tool.
    • If an MgC agent is Online and Disabled, it has not been used for big data verification in any project, and you can click Enable to use this tool for big data verification in the current project.
    • If an MgC agent is Offline and Deleted, it has been deleted and cannot be used for big data verification. However, if this tool has been used for big data verification before being deleted, you can select it and click View to view the verification tasks and results.
    • If an MgC agent is Offline and Disabled, it cannot be used for big data verification, and all operation buttons are disabled even if you select it and click View.

      Before performing big data verification, ensure that the selected MgC Agent is Online and Enabled.

Parent topic: Big Data Verification