HAProxy Websocket 40K Connections

haproxy_websocket_40K_connections_config

#---------------------------------------------------------------------
# Example configuration for a possible web application.  See the
# full configuration options online.
#
#   http://haproxy.1wt.eu/download/1.4/doc/configuration.txt
#
#---------------------------------------------------------------------

#---------------------------------------------------------------------
# Global settings
#---------------------------------------------------------------------
global
    # to have these messages end up in /var/log/haproxy.log you will
    # need to:
    #
    # 1) configure syslog to accept network log events.  This is done
    #    by adding the '-r' option to the SYSLOGD_OPTIONS in
    #    /etc/sysconfig/syslog
    #
    # 2) configure local2 events to go to the /var/log/haproxy.log
    #   file. A line like the following can be added to
    #   /etc/sysconfig/syslog
    #
    #    local2.*                       /var/log/haproxy.log
    #
    log         127.0.0.1 local2
    nbproc      4
    ulimit-n    1000000
    chroot      /var/lib/haproxy
    pidfile     /var/run/haproxy.pid
    maxconn     400000
    user        root
    group       root
    daemon

    # turn on stats unix socket
    stats socket /var/lib/haproxy/stats

#---------------------------------------------------------------------
# common defaults that all the 'listen' and 'backend' sections will
# use if not designated in their block
#---------------------------------------------------------------------
defaults
    mode                    http
    log                     global
    option                  httplog
    option                  dontlognull
    option http-server-close
    option forwardfor       except 127.0.0.0/8
    option                  redispatch
    retries                 3
    timeout http-request    10s
    timeout queue           1m
    timeout connect         10s
    timeout client          7m
    timeout server          8m
    timeout http-keep-alive 10s
    timeout check           10s
    maxconn                 400000

#---------------------------------------------------------------------
# main frontend which proxys to the backends
#---------------------------------------------------------------------
frontend  main *:5000
    acl url_static       path_beg       -i /static /images /javascript /stylesheets
    acl url_static       path_end       -i .jpg .gif .png .css .js

    use_backend static          if url_static
    default_backend             app

frontend http
    bind *:80
	## routing based on websocket protocol header
	maxconn 400000
  	acl hdr_connection_upgrade hdr(Connection)  -i upgrade
  	acl hdr_upgrade_websocket  hdr(Upgrade)     -i websocket
  	use_backend bk_ws if hdr_connection_upgrade hdr_upgrade_websocket





#---------------------------------------------------------------------
# static backend for serving up images, stylesheets and such
#---------------------------------------------------------------------
backend static
    balance     roundrobin
    server      static 127.0.0.1:4331 check

#---------------------------------------------------------------------
# round robin balancing between the various backends
#---------------------------------------------------------------------
backend app
    balance     roundrobin
    server  app1 127.0.0.1:5001 check
    server  app2 127.0.0.1:5002 check
    server  app3 127.0.0.1:5003 check
    server  app4 127.0.0.1:5004 check

backend bk_ws
    mode http
    balance roundrobin
    maxconn 400000
    server ws1 192.168.3.37:20000 source  192.168.3.101
    server ws2 192.168.3.37:20000 source  192.168.3.102
    server ws3 192.168.3.37:20000 source  192.168.3.103
    server ws4 192.168.3.37:20000 source  192.168.3.104
    server ws5 192.168.3.37:20000 source  192.168.3.105
    server ws6 192.168.3.37:20000 source  192.168.3.106