# Which Problems Are Solved
- `pgxpool -> pgx` dependency throws "MaxSize must be >= 1" on init if
`postgres.MaxOpenConns` isn't set in the ZItadel config
# How the Problems Are Solved
Only override the `MaxConns` with the Zitadel configured `MaxOpenConns`
if greater than 0 (default value). The default `MaxConns` [is derived by
`pgxpool`](ea9610f672/pgxpool/pool.go (L309-L324))
itself in a sensible way, but somewhat undocumented: checks for explicit
config in connection url or config and falls back on max(num_cpus, 4).
# Additional Changes
Applied same check in cockroach config
# Additional Context
This is likely a regression from the changes in
https://github.com/zitadel/zitadel/pull/8325
e009ed9fe4