Grafana Loki vs PostgreSQL Exporter
A side-by-side comparison of two self-hosted monitoring & status options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Grafana Loki
Log aggregation system inspired by Prometheus
VS
PostgreSQL Exporter
Prometheus exporter for PostgreSQL server metrics
| Feature | Grafana Loki | PostgreSQL Exporter |
|---|---|---|
| Category | Monitoring & Status | Monitoring & Status |
| License | AGPL-3.0 | Apache-2.0 |
| Language | Go | Go |
| Setup difficulty | Medium | Easy |
| Min. RAM | 512 MB | 64 MB |
| Deployment | docker, kubernetes, helm | docker, binary, kubernetes |
| GitHub stars | ★ 28,687 | ★ 3,588 |
| First released | 2018 | 2016 |
| Replaces | Splunk, Datadog Logs | Datadog PostgreSQL, pganalyze |
Why pick each one
Choose Grafana Loki if…
- Cheap to run compared to full-text indexers
- Familiar Prometheus-style labels
Choose PostgreSQL Exporter if…
- Battle-tested in production
- Rich default metrics
Frequently asked questions
Is Grafana Loki or PostgreSQL Exporter better?
Neither is universally better. Grafana Loki has the larger community, while PostgreSQL Exporter is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are Grafana Loki and PostgreSQL Exporter free and open-source?
Yes. Grafana Loki is licensed under AGPL-3.0 and PostgreSQL Exporter under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Grafana Loki and PostgreSQL Exporter with Docker?
Grafana Loki: yes. PostgreSQL Exporter: yes.