Optimal number of connections in connection pool

Question

Currently we are using 4 cpu windows box with 8gb RAM with MySQL 5.x installed on same box. We are using Weblogic application server for our application. We are targeting fo

Answer 1

Based on my experience on high transaction financial systems, if you want to handle for example 1K requests per seconds, and you have 32 CPU's, You need to have 1000/32 open connection polls to your database.

Here is my formula:

RPS / CPU_COUNT

If most cases, your database engine will be able to handle your requests even in much lower numbers, but your connections will be in waiting mode if the number is low.

I think it's pretty important to mention that your database should be able to handle those transactions (based on your disk speed, database configuration and server power).

Good luck.