Connecting with Prometheus World: Logs and Metrics
summary
Fluent Bit adds native metrics support by shipping a small C metrics core called the symmetrics library that encodes counters/gauges (histograms in progress), reimplements a subset of node_exporter collectors, and exposes metrics via a built‑in HTTP endpoint using a cached snapshot refreshed every 2s so scrapes return the last input interval. It speaks OpenMetrics/Prometheus (including remote_write), can convert parsed logs into counters, and already wires outputs for InfluxDB and Prometheus as the Prometheus exporter; Fluent/Fluent Bit deploys exceed two million times per day.
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