Enabling ALT

Constraints

For details, see Precautions.

Procedure

1. Log in to the management console.
2. Click in the upper left corner and select a region and project.
3. Click in the upper left corner of the page, choose Databases > GaussDB(for MySQL).
4. On the Instances page, click the instance name.
5. In the navigation pane, choose Database Proxy.
6. Click a proxy instance to go to the Basic Information page.
7. In the Proxy Instance Information area, click in the ALT field.
   Figure 1 Enabling ALT
   

8. In the displayed dialog box, click Yes.
   

   • If ALT is enabled for the first time, the GaussDB(for MySQL) instance and proxy instance will be rebooted immediately. During the reboot, the instances are unavailable.
   • Rebooting an instance will clear the cached memory in it. You are advised to reboot it during off-peak hours.
   • To disable ALT, click . ALT must be disabled for all proxy instances. Disabling ALT will cause the proxy instances to reboot. Once ALT is disabled for all proxy instances, the GaussDB (for MySQL) instance will also reboot.