Help Center> GaussDB> User Guide> DB Instance Management> Rebooting a DB Instance
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Rebooting a DB Instance

Scenarios

You may need to reboot a DB instance during maintenance. For example, after modifying some parameters, you must reboot the DB instance for the modifications to take effect. DB instances can be rebooted only when they are in the available state. They cannot be rebooted when backups or read replicas are being created for them.

The time required for rebooting a DB instance depends on the crash recovery process of the DB engine. To shorten the reboot time, you are advised to reduce database activities during the reboot to reduce rollback activities of transit transactions.

  • You can reboot a DB instance only when its status is Available. Your database may be unavailable in some cases such as data is being backed up or some modifications are being made.
  • Rebooting a DB instance will cause service interruption. During this period, the DB instance status is Rebooting.
  • DB instances are not available when being rebooted. After the reboot completes, the cached memory will be automatically cleared. The DB instance needs to be warmed up to prevent congestion during peak hours.

Procedure

  1. Log in to the management console.
  2. Click in the upper left corner and select a region and a project.
  3. Click Service List. Under Database, click GaussDB.
  4. On the Instance Management page, locate the target DB instance and choose More > Reboot in the Operation column.

    Alternatively, click the target DB instance. On the displayed page, click Reboot in the upper right corner of the page.

    The read replicas are also rebooted.

  5. If you have enabled the operation protection function, click Start Verification in the Reboot DB Instance dialog box. On the displayed page, click Send Code, enter the obtained verification code, and click Verify. The page is closed automatically.

    For details about how to enable operation protection, see the Identity and Access Management User Guide.

  6. In the displayed Reboot DB Instance dialog box, click Yes.
  7. Refresh the DB instance list and view the status of the DB instance. If its status is Available, it has rebooted successfully.
Parent topic: DB Instance Management