When a host in your dedicated cluster has performance issues or other problems, restart the host to restore normal operation.
Prerequisites
Before you begin, ensure that you have:
A host in an ApsaraDB MyBase for MySQL dedicated cluster. To create one, see Create a host in an ApsaraDB MyBase for MySQL dedicated cluster.
Before you restart
Restarting a host triggers a primary/secondary switchover for the primary instance running on that host:
The primary instance on the host becomes a secondary instance on another host after the switchover.
One or two transient connections may occur during the switchover.
The time required depends on how long the switchover takes.
If an instance is being created or migrated on the host when you restart, that creation or migration takes longer to complete.
Restart a host
Log on to the ApsaraDB for MyBase console.
In the upper-left corner of the page, select a region.
In the left-side navigation pane, click Hosts.
Find the host you want to restart, then click More > Restart Host in the Actions column.
On the Restart Host page, click Restart.