Data Transmission Service:Create consumer groups

Prerequisites

Before you begin, ensure that you have:

• A change tracking instance with a status of Normal. For more information, see Overview of change tracking scenarios.

Limits

• Each change tracking instance supports a maximum of 20 consumer groups.

• Each consumer group supports only one consumer.

• If a single tracked row exceeds 16 MB, an out of memory (OOM) error may occur on the change tracking client.

• DTS reads incremental data through the DStore module or a client. Switching between them may cause data duplication.

Create a consumer group

1. Go to the Change Tracking Tasks page using one of the following methods, then select the region where your change tracking instance resides.

   DTS console

   1. Log on to the DTS console.

   2. In the left-side navigation pane, click Change Tracking.

   3. In the upper-left corner, select the region where your change tracking instance resides.

   DMS console

   Note

   The navigation paths in the DMS console vary depending on your console mode and layout. For more information, see Simple mode and Customize the layout and style of the DMS console.

   1. Log on to the DMS console.

   2. In the top navigation bar, choose Data + AI > DTS (DTS) > Change Tracking.

   3. To the right of Change Tracking Tasks, select the region where your change tracking instance resides.

2. Find the change tracking instance and click its instance ID.

3. In the left-side navigation pane, click Consume Data.

4. On the Consume Data page, click Add Consumer Group in the upper-left corner.

5. In the Add Consumer Group dialog box, configure the following parameters.

   Parameter	Description
   Consumer Group Name	Enter a name that identifies the consumer group and its purpose.
   Account	Enter a username for the consumer group. The username must be 1–16 characters and can contain uppercase letters, lowercase letters, digits, and underscores (_).
   Password	Enter a password for the account. The password must be 8–32 characters and contain at least two of the following: uppercase letters, lowercase letters, digits, and special characters.
   Confirm Password	Re-enter the password to confirm.

6. Click OK.

What to do next

After creating consumer groups, choose a consumption mode based on your source database type and client.