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doc-exports/docs/dws/umn/dws_03_0031.html
Lu, Huayi c5fcb46315 DWS UMN 801 version 
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com>
Co-authored-by: Lu, Huayi <luhuayi@huawei.com>
Co-committed-by: Lu, Huayi <luhuayi@huawei.com>
2022-12-13 12:47:57 +00:00

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How Can I Upgrade or Downgrade GaussDB(DWS)?

Cluster patching or upgrading is automatic because GaussDB(DWS) upgrades its own version.

For service patch:

  • Duration: less than 10 minutes
  • Impact on services: 1 to 3 minutes of interruptions

For service upgrade:

  • Duration: less than 30 minutes
  • Impact on services: The database cannot be accessed.

Downgrade is not supported.

The following figure describes the database version.

  • During service patch, 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.
Parent topic: Cluster Management