[Deliverable] PostgreSQL Optimisation phase 2

[chair28980]

With phase 1, feedback from test stressing and IFT CC has been tackled.Preparation has been done to consult an external agency to fine tune PostgreSQL setup.

Phase 2 tracks the consultation with the external agency and follow-up work:

• Once all suggestions from IFT PostgreSQL expert are implemented, setup an agreement with consulting agency specialised in PostgreSQL performance to improve performance

This should include a better understanding of hardware requirements expectations to run Waku infra for Status.

[Ivansete-status]

Before carrying on with this step we need to measure the current performance. See the comment: waku-org/nwaku#3098 (comment)

[fryorcraken]

Dropped. We decided to set specific FURPS first and see how we go with improvement done so far.