@Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        ServiceInstance that = (ServiceInstance) o;
        // serviceCluster omitted to avoid recursion
        return Objects.equals(configId, that.configId) &&
                Objects.equals(hostName, that.hostName) &&
                serviceStatusInfo == that.serviceStatusInfo;
    }
Get a name that can be used in e.g. config server logs that makes it easy to understand which
service instance this is.
application-model/src/main/java/com/yahoo/vespa/applicationmodel/ServiceInstance.java