Specifying The HA Policy

The choice of a microservice's HA Policy, aka Consensus Model, is a design choice. Therefore, it is not a configurable option. Instead, the HA policy isspecified via the AppHAPolicy annotation on the microservice's main class.

The following illustrates how to set a microservice's HA policy

import com.neeve.server.app.annotations.*;
 
@AppHaPolicy(StateReplication)
public class MyApp {
     ...
}

The AppHAPolicy supports the following values

• StateReplication

• EventSourcing

Default HA Policy

A microservice that is not annotated with the AppHAPolicy defaults to StateReplication.