fluentbit

Fluent Bit is a fast and lightweight telemetry agent for logs, metrics, and traces for Linux, macOS, Windows, and BSD family operating systems. Fluent Bit has been made with a 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 - Converts unstructured messages using parsers: JSON, Regex, LTSV and Logfmt
• 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 - Connect nearly any source to nearly any destination using preexisting plugins
• Extensibility - Write input, filter, or output plugins in the C language; WASM: WASM Filter Plugins or WASM Input Plugins; 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 is licensed under the terms of the Apache License v2.0.