To bring a better experience to ApsaraDB RDS for MySQL users, Alibaba Cloud will no longer provide the previous data subscription mode after March 31, 2020.

Background information

The previous data subscription mode requires that one downstream SDK client consumes data and other SDK clients serve as backups. To allow multiple consumers to subscribe to the incremental data from the same database instance, you had to purchase multiple change data subscription instances.

The change tracking mode supersedes the former "data subscription" mode. The change tracking mode is more cost-effective than its predecessor in that it supports consumption by multiple consumer groups in the same instance. For more information, see Change tracking mode.

Effective date

March 31, 2020

Feature

Change tracking (previous) from ApsaraDB RDS for MySQL instances

Impact

Whether you have purchased an ApsaraDB RDS for MySQL instance to use the previous change tracking feature Impact
Yes
  • You can use the purchased instance.
  • The previous change tracking feature will no longer be available. If you reset a previous change tracking instance, the instance is upgraded to a new change tracking instance.Reset a change tracking instance
Plan to purchase You can no longer purchase an ApsaraDB RDS for MySQL instance to use the previous change tracking feature.

We apologize for any inconvenience caused. If you require any further assistance, we recommend that you submit a ticket to contact Alibaba Cloud after-sales service.

FAQ

  • Q: How can I upgrade a previous change tracking instance to a new change tracking instance if data changes are tracked from an ApsaraDB RDS for MySQL instance?
    A: You can upgrade a previous change tracking instance to a new change tracking instance by using the methods that are described in the following table.
    Source instance type Description
    ApsaraDB RDS for MySQL
    • Purchase a new change tracking instance. For more information, see Purchase procedure.
    • Reset the previous change tracking instance.Reset a change tracking instance
      Warning If you perform this operation, the instance is upgraded to a new change tracking instance and the data in the previous change tracking channel is deleted. The new change tracking feature requires the use of the Kafka client. Before you perform this operation, we recommend that you assess the impact on your business.
  • Q: How can I consume tracked data from an ApsaraDB RDS for MySQL instance by using the new change tracking feature?

    A: You can use the Kafka client to consume tracked data from an ApsaraDB RDS for MySQL instance. For more information, see Use a Kafka client to consume tracked data.