在VPS上安装Apache和MySQL

Question

Is there any difference (or preference) between two schemes:

1. Apache & MySQL are installed on the same VPS (4Gb RAM, 2 CPU Cores) and each of them configured for 2GB RAM,
2. Apache and MySQL installed on separate VPS (2Gb RAM, 1 CPU Core).

Thank you.

Answer 1

It is better to go for separate vps server

Following are the reason

1) can boost performance, u can balance the load equally

2) easier to set up replication if you have separate standalone DB server

3) easier to trouble shoot if there is a problem either in apache or mysql

4) normally if you have separate DB instance, you will allocate 80% of your RAM memory to Myisam or Innodb engine for better concurrency. If both kept in same vps, u will have to sacrifice concurrency, scalability