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Once your collectors are registered, you need to know if they’re working properly. That’s what health monitoring is for.
Fleet Management continuously checks your collectors and reports their status. But what does “healthy” actually mean? It’s not just “is the process running.” Fleet Management looks at several factors to give you a complete picture.
First, is the collector checking in? Has it contacted Fleet Management in the last 30 minutes?
Second, are any alerts firing? This is important. Fleet Management doesn’t create alerts automatically. It surfaces active alerts that you’ve created in your stack. This is intentional. Alerting thresholds are different for every team. You define what matters, and Fleet Management surfaces those alerts in context.
And finally: has the collector loaded its remote configuration successfully or are there errors preventing it from doing so?
Based on these checks, each collector gets a status. Green means everything is fine. Yellow means something needs attention soon. Red means investigate immediately. And gray means the collector hasn’t reported any data yet, so you’ll want to confirm it started and can reach Grafana Cloud. This lets you scan your entire fleet at a glance and know exactly which collectors need your attention.