Help Center/ Distributed Cache Service/ User Guide (Kuala Lumpur Region)/ Operating DCS Instances/ Upgrading Major Version of a DCS Redis 3.0 Instance
Updated on 2025-11-14 GMT+08:00
View PDF
Share

Upgrading Major Version of a DCS Redis 3.0 Instance

You are advised to upgrade your DCS Redis 3.0 instances as soon as possible. DCS for Redis of higher versions are compatible with Redis 3.0. This section describes how to upgrade Redis 3.0 to a later version in one click.

Notes and Constraints

  • Currently, only DCS Redis 3.0 instances can be upgraded to higher versions. Major versions of DCS Redis 4.0 and later instances cannot be upgraded.
  • Upgrade instances during off-peak hours.
  • Rollback is unavailable.

Impacts

  • The upgrade will make the instance read-only for 1 minute and interrupt connections for a few seconds. Ensure that your client application can retry connections and handle exceptions.
  • The bandwidth of a DCS Redis 3.0 instance will decrease after the upgrade. Check whether the new bandwidth is enough.
  • The instance cannot be restored with existing backup files after the upgrade.

Procedure

  1. Log in to the DCS console.
  2. Click in the upper left corner and select a region and a project.
  3. In the navigation pane, choose Cache Manager.
  4. Click a DCS instance.
  5. On the Basic Information page, click Upgrade Major Version next to Cache Engine.
  6. Specify Target Version and confirm the bandwidth and price.
  7. Click Submit. The upgrade is complete when the upgrade task is in the Successful state.

    Upgrading a DCS Redis 3.0 instance retains the original parameter settings and uses the default settings of added parameters of the higher version.

Parent topic: Operating DCS Instances