How much to allocate resources to create a postgreSQL cluster?

Question

PostgreSQL

Hello, I would like to know how many cpu ram and hdd, you need to allocate for the master and node of the postgreSQL cluster

Answer 1

As much as needed for the calculated load + margin for peaks. It is determined empirically, in the presence of experience, the first iteration approaches the optimal one. If possible, flexibly scale resources - it's even easier.

Answer 2

Play around with Pgtune, and then don't forget to add a huge page.