I have add service by http://localhost:8008/metrics,but monitoring always failed.
Also,/metrics doesn’t even have cluster member information, is there any solution?
Since v3.3 patroni dashboard already added - PMM 3.3.0 (2025-07-09) - Percona Monitoring and Management so it should show the metrics if you added the PG service properly.
Patroni Dashbaord Info
Postgres/Client add in PMM:
Also, you can refer to the blogpost - https://www.percona.com/blog/monitoring-a-postgresql-patroni-cluster for the older version, where eloboarated about the Patroni metrics exposed in a Prometheus compatible way [/metrics endpoint] if you want to use that way.
If you still face any issues, please share the exact dashboard which shows empty information or share the PMM Server/Agent logs for review.