Hello,
I have 3 webservers, a little old one that can handle 350req/s, a middle
one that handles 1700req/s and a bigger one that handles 2700req/s on
tests with the apache benchmark tool with 128 simultaneous connections.
So I decided to put haproxy as load balancer in other server so i can
(theorically) reach up to 4500req/s.
I worked for a while trying many different configurations but the
systems seems to have a limit of the fastest server on the whole
cluster. If I take out from the cluster 1 or 2 servers, the haproxy
performance is always the same of the fastest server in the cluster.
Of course, load of each individual server goes down, what means that
requests are distributed between them, but speed doesn't goes up.
So, here I copy my config in case it has some obvious error:
Thanks !
Ivan
global
log 127.0.0.1 local0
log 127.0.0.1 local1 notice
maxconn 8192
user haproxy
group haproxy
defaults
log global
retries 3
maxconn 8192
contimeout 5000
clitimeout 50000
srvtimeout 50000
listen web-farm 0.0.0.0:80
mode http
option httpclose
option abortonclose
balance roundrobin
server small 192.168.1.100:80 weight 1 check inter 2000 rise 2 fall 5
server medium 192.168.1.101:80 weight 2 check inter 2000 rise 2 fall 5
server big 192.168.1.102:80 weight 8 check inter 2000 rise 2 fall 5
