我为在单台计算机上运行的Web应用程序设计了一个架构

Question

I am planning to build a web app running on a single computer and exploit the hardware resources as efficient as possible. The logic of app will not be complex. The following is my design:

OS: Linux (CentOS 5)

Web Server: Nginx

Web script: PHP

Database: Tokyo cabinet + Tokyo Tyrant

Index: Sphinx

I am not going to use RDBMS such as MySQL, cause I think a key-value store (Tokyo cabinet) with a indexer (Sphinx) will meet all the needs to deploy a normal web app, also with better performance than MySQL.

My question is: is this design to be the an efficient architecture for a single computer? Or how to improve it?

(I know this question might to be subjective but I really need your help)

Thank you very much~

EDIT:

The computer I am going to host my app on, is a normal PC, like 8GB~16GB memory, 500G~1TB Hard disk, etc. I think it won't need to consider the "scalability". Every first step of a web app is started from one machine and it will always the beginning.

Answer 1

Choice of DB

I think that the choice of type of database you make depends less on how many computers the system is hosted on. I think this should be more a function of the quality of data that you want/need to preserve.

For example, if you need to store the shipping addresses for a customer, you will need to account for that in your storage structure. A name value pair may seem an easy enough structure to begin with, but if you foresee any of the following, you should consider moving to a standard database system

• keeping track of changes
• reporting activity / reports
• concurrent users

Performance

This is dependent on your code, images, content, caching, etc just as much as it is on your database.