[Fraj KALLEL]

Hello,

I use haproxy v1.4 as load balancer in front of 2 web servers (webA and
webB).
webA has more resource (RAM, CPU, HDD) than webB, and I used roundrobin as
algorithm of balance.

This is the config file of the haproxy.

global
        log 127.0.0.1   local0
        log 127.0.0.1   local1 notice
        #log loghost    local0 info
        maxconn 4096
        #debug
        #quiet
        user haproxy
        group haproxy

defaults
        log     global
        mode    http
        option  httplog
        option  dontlognull
        retries 3
        option  redispatch
        maxconn 2000
        timeout connect      5000ms
        timeout queue        5000ms
        timeout client       25m
        timeout server       25m

listen webfarm 192.168.1.28:80
       mode http
       stats enable
       stats auth stelb:abcder
       balance roundrobin
       appsession PHPSESSID len 64 timeout 3h request-learn prefix
       option httpclose
       option forwardfor
       option httpchk HEAD /check.txt HTTP/1.0

       acl white_list src 127.0.0.1 192.168.1.0/24
       http-request allow if white_list
       http-request deny

       acl restricted_page path_beg /images

       server webA 192.168.1.23:80 cookie A check
       server webB 192.168.1.24:80 cookie B check


After periode of utilization I find that webA receive more traffic than
webB while by definition roundrobin algorithm assign to each process in
equal portions and in circular order, handling all processes without
priority (also known as cyclic executive).

Is this a normal compotement ?

Thanks.

Sincerly yours,
Fraj KALLEL