Cannot start up haproxy
Solution 1
netstat -anop | grep ":80"
That should show you what is listening on that port. Ex:
~]# netstat -anop | grep ":80"
tcp 0 0 :::80 :::* LISTEN 15566/httpd off (0.00/0/0)
You could also use: lsof -Pni | grep ":80"
Ex:
~]# lsof -Pni | grep ":80"
httpd 15566 apache 4u IPv6 6247436 0t0 TCP *:80 (LISTEN)
httpd 19069 root 4u IPv6 6247436 0t0 TCP *:80 (LISTEN)
Solution 2
got it to work by correcting the public ip for my server. It turns out I'm using an ip address which is not the ip address of the server that has the load balancer currently installed.
fixing this line solved my problem
listen webservice 192.168.1.120:80
Solution 3
I had the same problem as @tom-angelo-clemente, but solved it by using the broadcast address on the bind parameter of a frontend:
frontend wfe
bind 0.0.0.0:80
This will bind the proxy to any IP address the machine is using (not sure about addresses on different NIC devices), so be careful when using this way if you have a private management interface and address you don't want to bind to.
Related videos on Youtube
Tom Angelo Clemente
Updated on September 18, 2022Comments
-
Tom Angelo Clemente over 1 year
Using ubuntu as my server I'm trying to set up load balancing using HAProxy.
When I try to run using "haproxy -f haproxy.cfg" i get this error.
[WARNING] 035/115820 (1148) : [haproxy.main()] Cannot raise FD limit to 8224. [ALERT] 035/115820 (1148) : Starting proxy webservice: cannot bind socket
I thought freeing up the port80 could solve the problem, so i uninstalled apache2 that might be using the port80. But to no avail still haven't solved my problem. So how can I kill an application that uses port 80?
my haproxy.cfg
# this config needs haproxy-1.1.28 or haproxy-1.2.1 global log 127.0.0.1 local0 log 127.0.0.1 local1 notice #log loghost local0 info maxconn 4096 #chroot /usr/share/haproxy user haproxy group haproxy daemon #debug #quiet defaults log global mode http option httplog option dontlognull retries 3 option redispatch maxconn 2000 contimeout 5000 clitimeout 50000 srvtimeout 50000 listen webservice 192.168.1.120:80 mode http stats enable stats refresh 10s stats hide-version cookie GALAXY insert balance roundrobin option httpclose option httpchk OPTIONS /health_check.html option forwardfor server RONAHPC 192.168.1.7:80 cookie GALAXY_SERVER_01 check server MAANPC 192.168.101:80 cookie GALAXY_SERVER_02 check
-
Tom Angelo Clemente about 12 yearsrunning sudo haproxy -f haproxy.cfg still gives me this error: [ALERT]037/153211 (1256) : Starting proxy webservice: cannot bind socket. I also my /etc/default/haproxy has ENABLED=1 already.