How to Setup a LAMP Stack with MySQL HeatWave – Part 5/5
Blog: Oracle BPM
This architecture is fine for development, but is somewhat lacking for production: There is no way to scale out the application tier or database tier to meet increasing load. The application server and database can only be scaled up by adding resource. Both the application server and database are single points of failure (SPOF). Further, there is no way maintenance can be performed on either the application server or database without affecting availability.