Understanding High Availability
High Availability (HA) is one of the important factors that must be considered in the architecture design of distributed systems. The HA of distributed systems ensures that the system can provide services stably. How we minimize the time of service unavailability through design is the goal of HA. As a distributed database service solution, Apache ShardingSphere can provide a distributed capability for the underlying database.
In addition to a HA scheme that can be flexibly compatible with each database and real-time perception of the state changes of the underlying database cluster, the HA of its own services also needs to be guaranteed in the deployment of the production environment.
In the following sections, we will introduce you to HA in general, or refresh your memory if you are already somewhat familiar with the concept. Once complete, you will dive into ShardingSphere's HA.
Database HA
The database is the infrastructure of the...
