A month ago I installed Varnish and Drupal on separate machines and could see that varnish was serving pages. A few days back I changed the ip address of the backend in my default.vcl to point to another machine and since then Varnish has stopped responding to requests. If you are wondering if I restarted Varnish, yes I did restart it.
What I find strange is that varnishlog doesn't display the ping and pong. A ps aux displays that Varnish is running. But visiting the ip address in my browser doesn't return any page.
[root@bw2 sridhar]# ps aux | grep varnish
root 3672 0.0 0.0 93660 1452 ? Ss 10:24 0:00 /usr/sbin/varnishd -P /var/run/varnish.pid -a :80 -f /etc/varnish/default.vcl -T 127.0.0.1:6082 -t 120 -w 1,1000, -u varnish -g varnish -p thread_pool_add_delay 2 -p thread_pools 2 -p thread_pool_min 400 -p thread_pool_max 4000 -p session_linger 50 -p sess_workspace 262144 -S /etc/varnish/secret -s malloc,1G
root 5845 0.0 0.0 4356 732 pts/0 S+ 10:45 0:00 grep varnish
Here is my default.vcl (if it helps). backend default { .host = "37.139.24.12"; .port = "80"; .connect_timeout = 1s; .first_byte_timeout = 5s; .between_bytes_timeout = 2s; }
Visiting the backend ip in a browser displays pages. So I guess that Varnish for some reason has become stubborn!
