Section 2 · Health monitoring

Understanding what collector health means

Estimated time: 1 min

What Fleet Management checks

Fleet Management continuously monitors your collectors and checks three things. Based on these checks, each collector receives a health status.

CheckQuestion it answers
Check-inHas the collector contacted Fleet Management in the last 30 minutes?
AlertsAre any user-created alerts firing for this collector?
Config errorsDid the collector load its remote configuration without errors?

Fleet Management doesn’t create alerts. It surfaces active alerts you’ve created in your stack.

Health status indicators

StatusColorMeaningAction
HealthyGreenAll checks passing, collector is operational.None needed
WarningYellowNon-critical alert, or the collector hasn’t checked in.Investigate soon
ErrorRedCritical alert, or a remote configuration error.Investigate immediately
UnknownGrayCollector hasn’t reported any telemetry yet (no heartbeat).Confirm it started

A quick glance tells you what needs attention. Green is fine, yellow needs a look soon, and red needs investigating now. Gray means a collector hasn’t reported in yet, so check that it started and can reach Grafana Cloud.