Dear Willy,
Thank you for your insights. As you advised, below is the output of
haproxy -f …cfg -db -V.
We are starting HAProxy as root. There is no other application running
on this server dedicated for load balancer. ‘netstat -apon’ suggests
that these ports are not used by any other system process.
HAProxy 1.6.0 was compiled from source in the server environment:
Centos 7.1, and dynamic loading of (Lua 5.3.1, PCRE 8.32, OpenSSL
1.0.1e, zlib 1.2.7)
HAProxy 1.5.14 runs smoothly on this same server and with the same
configuration. HAProxy configuration (same for both 1.5.14 and 1.6.0)
is given below. Any insights / pointers for us to further investigate
and resolve this issue would be appreciated.
+++++++
Debug output of HAProxy 1.6.0
+++++++
Available polling systems :
epoll : pref=300, test result OK
poll : pref=200, test result OK
select : pref=150, test result FAILED
Total: 3 (2 usable), will use epoll.
[ALERT] 292/025305 (4402) : Starting frontend webapps-frontend: cannot
create listening socket [0.0.0.0:80]
[ALERT] 292/025305 (4402) : Starting frontend webapps-frontend: cannot
create listening socket [0.0.0.0:443]
[ALERT] 292/025305 (4402) : Starting proxy haproxystats: cannot create
listening socket [Server_IP:xxxx]
Using epoll() as the polling mechanism.
++++++++++
Haproxy configuration
++++++++++
global
log 127.0.0.1 local2
pidfile /var/run/haproxy.pid
user haproxy
group haproxy
#daemon
debug
chroot /var/log/haproxy/
stats socket /var/log/haproxy/haproxy.stats
defaults
mode http
option abortonclose
option http-server-close
[….]
frontend webapps-frontend
bind *:80 name xxx
bind *:443 name yyy ssl crt /path/to/server.pem
[….]
listen haproxystats
bind Server_IP:xxxx
[….]
Thank you.
Sincerely,
-- --
Susheel Jalali
Coscend Communications Solutions
susheel.jal...@coscend.com
www.Coscend.com
On 10/20/15 12:29, Willy Tarreau wrote:
> On Tue, Oct 20, 2015 at 12:54:48AM +0530, Susheel Jalali wrote:
>> Dear HAProxy Developers:
>>
>> The following error message appears with HAProxy 1.6.0 after start and
>> then the load balancer stops. No haproxy.pid is getting created. The
>> same configuration works seamlessly with HAProxy 1.5.14 on the same
>> server. We are seeking insights into what we could be missing in our
>> configuration?
>>
>> The port numbers below are dedicated to this HAProxy instance and only
>> one HAProxy instance is running.
>>
>> /var/log/messages
>>
>> Frontend: Cannot create listening socket (0.0.0.0:<NON-SSL_PORT>)
>> Frontend: Cannot create listening socket (0.0.0.0:<SSL_PORT>)
>> Proxy for stats: Cannot create listening socket
(<SERVER_IP:STATS_PORT>)
>
> This sounds like either another process is listening on the same ports,
> or that these are privileged ports and you're not starting it as root.
>
> Try to start it by hand in foreground with "-db", you'll see all the
> messages, maybe you'll see some warnings that you're missing here.
>
> Willy
>
