• Data Warehouse Service

dws
  1. Help Center
  2. Data Warehouse Service
  3. User Guide
  4. FAQs
  5. General FAQs
  6. How Can I Upgrade or Downgrade DWS?

How Can I Upgrade or Downgrade DWS?

You do not need to perform DWS cluster patching or upgrading because DWS will handle version upgrade automatically.

For service patching:

  • Duration: The whole process will take less than 10 minutes.
  • Impact on services: During this period, services will be interrupted for 1 to 3 minutes.

For service upgrading:

  • Duration: The whole process will take less than 30 minutes.
  • Impact on services: During this period, the database cannot be accessed.

Downgrade is not supported.

NOTE:

The following figure describes the database version.

  • During service patch upgrade, the last digit of database version X.X.X is changed, for example, the database is upgraded from 1.1.0 to 1.1.1.
  • During service upgrade, the first two digits of database version X.X.X are changed, for example, the database is upgraded from 1.1.0 to 1.2.0.