Modern web frameworks generate a lot of connections. Let's say, a typical application may run on 4 instances each one with 16 cores. That means a total of 64 p

Modern web frameworks generate a lot of connections. Let's say, a typical application may run on 4 instances each one with 16 cores. That means a total of 64 processes because one process per core. Each process opens 16 connections to the database because bad configuration or default to the number of cores. We're now facing a total of 1024 SQL connections out-of-the-box for nothing. That's the reason databases are commonly subjected to insane amounts of connections.