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upstream-fair: The fair load balancer module for NGINX

Installation

You can install this module in any RHEL-based distribution, including, but not limited to:

  • RedHat Enterprise Linux 7, 8, 9
  • CentOS 7, 8, 9
  • AlmaLinux 8, 9
  • Rocky Linux 8, 9
  • Amazon Linux 2 and Amazon Linux 2023
yum -y install https://extras.getpagespeed.com/release-latest.rpm
yum -y install nginx-module-upstream-fair

Enable the module by adding the following at the top of /etc/nginx/nginx.conf:

load_module modules/ngx_http_upstream_fair_module.so;

This document describes nginx-module-upstream-fair v0.1.3 released on Oct 03 2017.

Nginx Upstream Fair Proxy Load Balancer

**( compatible with nginx 1.11.6+ & with dynamic module capability ) **

Description:

The Nginx fair proxy balancer enhances the standard round-robin load balancer provided with Nginx so that it will track busy back end servers (e.g. Thin, Ebb, Mongrel) and balance the load to non-busy server processes.

Further information can be found on http://nginx.localdomain.pl/

Ezra Zygmuntowicz has a good writeup of the fair proxy load balancer and how to use it here: http://brainspl.at/articles/2007/11/09/a-fair-proxy-balancer-for-nginx-and-mongrel

Usage:

Change your Nginx config file's upstream block to include the 'fair' directive:

upstream mongrel { fair; server 127.0.0.1:5000; server 127.0.0.1:5001; server 127.0.0.1:5002; }

If you encounter any issues, please report them using the bugtracker at http://nginx.localdomain.pl/

GitHub

You may find additional configuration tips and documentation for this module in the GitHub repository for nginx-module-upstream-fair.