HAProxy how to "stick-table" ip connection to same backend?

StackOverflow https://stackoverflow.com/questions/19114976

  •  30-06-2022
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Question

My HAProxy config:

global
maxconn 300000

defaults
  mode http
  log global
  option httplog
  option  http-server-close
  option  dontlognull
  option  redispatch
  option  contstats
  retries 3
  backlog 10000
  timeout client            5s
  timeout connect           5s
  timeout server            5s
  timeout tunnel            120s
  timeout http-keep-alive   5s
  timeout http-request      15s
  default-server inter 3s rise 2 fall 3
  option forwardfor

frontend ft_web
  bind *:8000 name http
  maxconn 300000
  stick-table type ip size 5000k expire 5m store conn_cur
  tcp-request connection reject if { src_conn_cur ge 3 }
  tcp-request connection track-sc1 src   
  default_backend bk_web

backend bk_web
   balance roundrobin

server s8001 127.0.0.1:8001 maxconn 500 weight 10 cookie s8001 check
server s8002 127.0.0.1:8002 maxconn 500 weight 10 cookie s8002 check
server s8003 127.0.0.1:8003 maxconn 500 weight 10 cookie s8003 check
server s8004 127.0.0.1:8004 maxconn 500 weight 10 cookie s8004 check

Currently if someone is openning more then 3 connections, all other are droped, but I need to stick IP to backend so every time someone with same IP access frontend he goes to same backend node ...

thanks

Was it helpful?

Solution

You're just missing the stick on and stick match parts. My config would look like this:

global
maxconn 300000

defaults
  mode http
  log global
  option httplog
  option  http-server-close
  option  dontlognull
  option  redispatch
  option  contstats
  retries 3
  backlog 10000
  timeout client            5s
  timeout connect           5s
  timeout server            5s
  timeout tunnel            120s
  timeout http-keep-alive   5s
  timeout http-request      15s
  default-server inter 3s rise 2 fall 3
  option forwardfor

frontend ft_web
  bind *:8000 name http
  maxconn 300000
  stick-table type ip size 5000k expire 5m store conn_cur
  stick on src table bk_web
  tcp-request connection reject if { src_conn_cur ge 3 }
  tcp-request connection track-sc1 src   
  default_backend bk_web

backend bk_web
   balance roundrobin

stick match src table bk_web
server s8001 127.0.0.1:8001 maxconn 500 weight 10 cookie s8001 check
server s8002 127.0.0.1:8002 maxconn 500 weight 10 cookie s8002 check
server s8003 127.0.0.1:8003 maxconn 500 weight 10 cookie s8003 check
server s8004 127.0.0.1:8004 maxconn 500 weight 10 cookie s8004 check
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