Fluent Bit v3.1 Documentation

High Performance Telemetry Agent for Logs, Metrics and Traces


  • 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 and is now sponsored by Chronosphere. As a CNCF-hosted project, it is a fully vendor-neutral and community-driven project.

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