Upgrading the Kernel Version of a Proxy Instance

Scenarios

You can manually upgrade your proxy instance to the latest kernel version to improve performance, add new functions, and fix problems.

For details about the kernel versions of proxy instances, see Proxy Instance Kernel Version Release History.

Upgrade Methods

A kernel version can be upgraded in either of the following ways:

• Upon submission: The system upgrades the kernel version upon your manual submission of the upgrade request.
• In maintenance window: The system upgrades the kernel version during the maintenance window you have specified. For details about how to change the maintenance window, see Configuring the Maintenance Window of a TaurusDB Instance.

If the kernel version of your DB instance has potential risks or major defects, has expired, or has been brought offline, the system will notify you by SMS message or email and deliver an upgrade task during the maintenance window.

Precautions

Brief disconnections may occur during the upgrade. The time required to complete the upgrade depends on how many proxy instances there are. Perform the upgrade during off-peak hours.

Procedure

1. Log in to the TaurusDB console.
2. Click in the upper left corner and select a region.
3. On the Instances page, click the instance name.
4. In the navigation pane, choose Database Proxy.
5. Click the name of a proxy instance to go to the Basic Information page.
6. In the Proxy Instance Information area, click Upgrade under Kernel Version.
7. In the displayed dialog box, select an upgrade method and click OK.
   • Upon submission: The system upgrades the proxy instance to the latest version immediately after you submit the request. You can view the task progress in Task Center > Instant Tasks.
   • In maintenance window: The system upgrades the proxy instance to the latest version during a maintenance window. You can view the task progress in Task Center > Scheduled Tasks.
   Figure 1 Upgrading the minor version of a proxy instance