Falcon is a fast, asynchronous, Rack-compatible HTTP server for Ruby applications. It uses a multi-process, multi-fiber architecture, with each request running within a lightweight fiber.
Blocking upstream operations do not stall the entire server process. Falcon is built on the Async ecosystem and supports HTTP/1 and HTTP/2 natively.
This is free and open source software.
Key Features
- Multi-process, multi-fiber architecture.
- Executes each request within a lightweight fiber.
- Native HTTP/1 and HTTP/2 support.
- Compatible with Rack applications.
- Asynchronous request handling.
- Rails integration.
- WebSocket support.
- Interim HTTP response support.
- Hosts multiple server instances within a single worker.
- Utilization metrics.
- Deployment support for systemd and Kubernetes.
Website: github.com/socketry/falcon
Support:
Developer: Socketry
License: MIT License
Falcon is written in Ruby. Learn Ruby with our recommended free books and free tutorials.
Related Software
| Ruby Application Servers | |
|---|---|
| Puma | Concurrent web server for Ruby and Rack |
| Phusion Passenger | Web server and application server for Ruby, Python and Node.js |
| Falcon | Asynchronous Rack-compatible engine for fast, scalable web traffic |
| pitchfork | Preforking HTTP engine designed for resilience and steady throughput |
| iodine | Lightweight HTTP and WebSocket service built for demanding loads |
| unicorn | HTTP server for Rack applications |
| Itsi | High-performance web serving with efficient request handling |
| Rainbows! | HTTP server for sleepy Rack applications based on Unicorn |
| Agoo | Fast HTTP platform with WebSocket support and very low overhead |
| yahns | Sleepy, multi-threaded, non-blocking application server for Ruby |
Read our verdict in the software roundup.
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