Unexpected behaviour when dynamically add node in HAproxy server
- by Anand Soni
I wanted to use HAProxy for my web app for load balancing purpose. I am trying to add a new rabbitmq node dynamically in HAProxy server using command : haproxy -p /var/run/haproxy.pid -sf $(cat /var/run/haproxy.pid). I am doing tcp connection mode with leastconn balance algorithm in load balancing. What is expected is when there is 3 connection in one rabbitmq, I add a new rabbit server in HAProxy server. so the next connection would pass to 2nd rabbitmq server which is not happening in my case. It distributes the connection in haphazardly manner.
Here is my config file:
defaults
log global
mode http
option httplog
option dontlognull
retries 3
option redispatch
maxconn 2000
contimeout 5000
clitimeout 5000
srvtimeout 5000
listen rabbitmq 0.0.0.0:5672
mode tcp
stats enable
balance leastconn
option tcplog
server rabbit01 xx.xx.xx.xx:5672 check
server rabbit02 xx.xx.xx.xx:5672 check
listen tomcatq 0.0.0.0:80
mode http
stats enable
balance roundrobin
stats refresh 10s
stats refresh 10s
stats uri /lb?stats
stats auth admin:admin
option httplog
What is the problem causing this behavior? Any suggestion will appreciated.
