DumbMonit
IntegrationsDatabases and messaging
Monitor PostgreSQL database with DumbMonit
Logs in, runs a query and reads the server's health: catches a database that is up but no longer answering, and one that is running out of connections, lagging or bloating.
DocumentationOfficial website: PostgreSQL
Product descriptions are in English, as in the product. The page labels follow your language.
What DumbMonit watches
Typical use. Database: connection and a query you choose
Examples
- The database behind Nextcloud or Immich
- A Home Assistant recorder
- An application database
- A TimescaleDB instance
How it connects
What you need
- Username / passwordA read-only account created for monitoring, never an application one.
Default port: 5432
Setup steps: Monitor a PostgreSQL database
In psql, create a role that may only log in.
CREATE ROLE dumbmonit LOGIN PASSWORD 'a-long-password';Allow it to connect from the DumbMonit host with this line in pg_hba.conf (adjust the address), then reload PostgreSQL.
host all dumbmonit 10.0.0.5/32 scram-sha-256In DumbMonit, enter the server, for example db.home.lan:5433 (port 5432 by default), then the role's user and password.
Optional: replace the default query SELECT 1 with one that returns a single number, to chart it.
Optional, for the complete server health metrics (sessions of every user, locks, replication, vacuum): let the role read the statistics views.
GRANT pg_monitor TO dumbmonit;
Heads-up. The check opens a real connection on every poll: on an instance close to its connection limit, give it a longer interval.