Tools / Apache HertzBeat Interview Questions
How does HertzBeat differ from the Prometheus and Grafana stack?
Prometheus and Grafana is a modular stack: Prometheus scrapes metrics (often via separately deployed exporters), stores them, and evaluates alert rules, while Grafana handles visualization and Alertmanager handles notification routing. HertzBeat bundles equivalent functionality into one deployable system.
| Prometheus + Grafana | HertzBeat |
| Separate tools for scraping, storage, dashboards, alerting. | Collection, storage, dashboards, and alerting in one platform. |
| Often needs per-service exporters. | Agentless YML templates; can also scrape existing exporters. |
| PromQL-only query language. | PromQL and SQL-style threshold expressions. |
HertzBeat is Prometheus-compatible, so an existing Prometheus exporter can be pointed at directly, but for new targets HertzBeat's own templates usually mean fewer separate processes to run.
A key structural difference is that HertzBeat:
Can HertzBeat consume an existing Prometheus exporter's data?
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