MySQL Automatic Failover Setup Guide

To achieve automatic failover for MySQL, high availability can be achieved using MySQL Replication and MySQL Cluster. One way to implement this is as follows:

1. Implement MySQL Replication:
   Establish master-slave replication between the MySQL primary server and standby server to ensure that the standby server can synchronize real-time data changes from the primary server. This allows the standby server to quickly switch to the primary server in case of failure, ensuring system availability.
2. Implement MySQL monitoring and automatic failover:
   Utilize monitoring tools to monitor the status of the MySQL primary server. In the event of failure or unavailability of the primary server, trigger the automatic failover mechanism to promote the standby server to a new primary server. Tools such as Keepalived and Pacemaker can be used for cluster management to achieve automatic failover.
3. Set up load balancing:
   In order to better manage database access traffic, a load balancer can be set up between the primary and backup servers to evenly distribute access requests to both servers, enhancing system performance and availability.

By using the methods above, automatic failover between MySQL primary and standby servers can be achieved, ensuring the high availability and stability of the system.