Fluent Bit v2.2 Documentation

High Performance Telemetry Agent for Logs, Metrics and Traces
Fluent Bit is a Fast and Lightweight Telemetry Agent for Logs, Metrics, and Traces for Linux, macOS, Windows, and BSD family operating systems. It has been made with a strong focus on performance to allow the collection and processing of telemetry data from different sources without complexity.


  • High Performance: High throughput with low resources consumption
  • Data Parsing
  • Metrics Support: Prometheus and OpenTelemetry compatible
  • Reliability and Data Integrity
  • Networking
    • Security: built-in TLS/SSL support
    • Asynchronous I/O
  • Pluggable Architecture and Extensibility: Inputs, Filters and Outputs
  • Monitoring: expose internal metrics over HTTP in JSON and Prometheus format
  • Stream Processing: Perform data selection and transformation using simple SQL queries
    • Create new streams of data using query results
    • Aggregation Windows
    • Data analysis and prediction: Timeseries forecasting
  • Portable: runs on Linux, macOS, Windows and BSD systems

Fluent Bit, Fluentd and CNCF

Fluent Bit is a CNCF graduated sub-project under the umbrella of Fluentd. Fluent Bit is licensed under the terms of the Apache License v2.0.
Fluent Bit was originally created by Eduardo Silva. As a CNCF-hosted project, it is a fully vendor-neutral and community-driven project.
Last modified 3mo ago