Fluent Bit v2.0 Documentation
High Performance Log and Metrics Processor
Features
High Performance: High throughput with low resources consumption
Metrics Support: Prometheus and OpenTelemetry compatible
Reliability and Data Integrity
Backpressure Handling
Data Buffering in memory and file system
Networking
Security: built-in TLS/SSL support
Asynchronous I/O
Pluggable Architecture and Extensibility: Inputs, Filters and Outputs
More than 100 built-in plugins are available
Extensibility
Write any input, filter or output plugin in C language
WASM: WASM Filter Plugins or WASM Input Plugins
Bonus: write Filters in Lua or Output plugins in Golang
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, it's licensed under the terms of the Apache License v2.0.
Fluent Bit was originally created by Eduardo Silva; as a CNCF-hosted project is a fully vendor-neutral and community-driven project.
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