The system has single-points-of-failure (SPOF), where a single fault can cause a partial
or complete system or application outage.
Single point of failure
include:
- failure of the node (node-a) will cause a complete
system outage.
- failure of the agent server
will affect all services provided by the application server. In addition, it would halt all services
running the integration and application servers that depend on the message queues.
- failure of the database instance due to software
errors or disk errors will cause a complete system outage since the
application is strongly reliant on the data in the database.