Alert: PostgresDown

Symptom

postgres_exporter on lastvet-db (192.168.1.91:9187) is not reachable.

Immediate action

ssh lastvet-db 'systemctl status postgresql@17-main postgres_exporter --no-pager'

Diagnosis

1. Postgres cluster status: pg_lsclusters
2. Disk space on /var/lib/postgresql and ZFS datasets.
3. Recent migrations or config changes.

Escalation

Ryan immediately; database outage blocks all LastVet API paths.

Resolution history

Date	Notes