What is the method of configuring high availability for…

There are several methods for configuring high availability for Tomcat.

1. Load balancing: Distribute requests to multiple Tomcat servers using a load balancer. Common load balancers include Nginx, Apache HTTP Server, etc. Load balancing can enhance the system’s concurrency processing capability and availability.
2. Clustering: Combining multiple Tomcat servers into a cluster to share session data and application state, achieving high availability. Common Tomcat cluster solutions include Apache Tomcat Clustering and Tomcat Session Replication.
3. Hot backup: designate one Tomcat server as the primary server and another Tomcat server as the backup server, synchronizing data and status in real time. In the event of a primary server failure, the backup server can immediately take over services.
4. Cloud services: Deploying Tomcat on a cloud platform to take advantage of the high availability features provided by cloud services, automatically monitoring and managing Tomcat instances.
5. Fault tolerance: By monitoring and automatic switch-over, in the event of a problem with the main server, traffic is automatically redirected to the backup server to ensure service continuity.
6. Database synchronization: Implementing master-slave replication for the database used by the Tomcat server to ensure consistency and availability of data.

The above methods can be combined and adjusted according to actual needs to achieve higher availability and fault tolerance.