Nagios Support Forum

Hello,

Has anybody implemented HAProxy loadbalancer as frontend for NLS Cluster? i am currently trying to set it up and im having troubles with it. my HAProxy config is below. the problem is that when i hit the balancer, from the balancer logs it shows that both NLS are being connected to and i could not log in successfully to the NLS Page.

global
log 127.0.0.1 local2
chroot /var/lib/haproxy
pidfile /var/run/haproxy.pid
maxconn 4000
user haproxy
group haproxy
daemon
stats socket /var/lib/haproxy/stats

defaults
mode http
log global
option httplog
option dontlognull
option redispatch
retries 3
timeout http-request 10s
timeout queue 1m
timeout connect 10s
timeout client 1m
timeout server 1m
timeout http-keep-alive 10s
timeout check 10s
maxconn 3000
log 127.0.0.1 local2

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 NLS #app

backend static
balance roundrobin
server static1 192.168.56.149:4331 check #changed from 127.0.0.1:4331 check
server static2 127.0.0.1:4331 check

frontend NLS
bind *:80
mode http
acl host_static hdr_beg(host) -i /static
acl url_static path_beg /static
use_backend static if host_static
use_backend static if url_static
default_backend NLS

backend NLS
balance roundrobin
server Client1 192.168.56.150:80 check
server Client2 192.168.56.151:80 check

I know it's something that can be done, though we don't have any specific documentation regarding the process. A former co-worker may have left behind some notes I can dig through, but most topics regarding load-balancing are considered out of scope for "official support" at this time.

looking forward to anything that might help. thanks.

His notes didn't provide anything useful unfortunately. We can leave this thread open though in case anyone in the community has anything to offer.