docs/FAQ.md: add can I use VictoriaMetrics instead of Prometheus?

The question has been extracted from https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1284
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Aliaksandr Valialkin 2021-05-20 16:10:25 +03:00
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@ -238,3 +238,12 @@ Memory usage for VictoriaMetrics components can be tuned according to the follow
* [Capacity planning for cluster VictoriaMetrics](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html#capacity-planning)
* [Troubleshooting for vmagent](https://docs.victoriametrics.com/vmagent.html#troubleshooting)
* [Troubleshooting for single-node VictoriaMetrics](https://docs.victoriametrics.com/#troubleshooting)
### Can I use VictoriaMetrics instead of Prometheus?
Yes in most cases. VictoriaMetrics can substitute Prometheus in the following aspects:
* Prometheus-compatible service discovery and target scraping can be done with [vmagent](https://docs.victoriametrics.com/vmagent.html) and with single-node VictoriaMetrics - see [these docs](https://docs.victoriametrics.com/#how-to-scrape-prometheus-exporters-such-as-node-exporter).
* Prometheus-compatible alerting rules and recording rules can be processed with [vmalert](https://docs.victoriametrics.com/vmalert.html).
* Prometheus-compatible querying in Grafana is supported by VictoriaMetrics. See [these docs](https://docs.victoriametrics.com/#grafana-setup).