HAProxy Fails to Start Ubuntu 16.04


#1

I can’t seem to get my HAProxy to start, any ideas whats causing the problem?

root@haproxy-www:/# service haproxy restart
root@haproxy-www:/# service haproxy status
haproxy.service - HAProxy Load Balancer
   Loaded: loaded (/lib/systemd/system/haproxy.service; enabled; vendor preset: enabled)
   Active: inactive (dead) since Mon 2017-10-02 17:21:11 AEDT; 4s ago
     Docs: man:haproxy(1)
           file:/usr/share/doc/haproxy/configuration.txt.gz
  Process: 11014 ExecStart=/usr/sbin/haproxy-systemd-wrapper -f ${CONFIG} -p /run/haproxy.pid $EXTRAOPTS (code=exited, status=0/SUCCESS)
  Process: 11011 ExecStartPre=/usr/sbin/haproxy -f ${CONFIG} -c -q (code=exited, status=0/SUCCESS)
 Main PID: 11014 (code=exited, status=0/SUCCESS)

Oct 02 17:21:11 haproxy-www systemd[1]: haproxy.service: Service hold-off time over, scheduling restart.
Oct 02 17:21:11 haproxy-www systemd[1]: Stopped HAProxy Load Balancer.
Oct 02 17:21:11 haproxy-www systemd[1]: haproxy.service: Start request repeated too quickly.
Oct 02 17:21:11 haproxy-www systemd[1]: Failed to start HAProxy Load Balancer.
root@haproxy-www:/# 

Here is my haproxy.cfg file

global log /dev/log local0 log /dev/log local1 notice chroot /var/lib/haproxy stats socket /run/haproxy/admin.sock mode 660 level admin stats timeout 30s user haproxy group haproxy daemon

    # Default SSL material locations
    ca-base /etc/ssl/certs
    crt-base /etc/ssl/private

    # Default ciphers to use on SSL-enabled listening sockets.
    # For more information, see ciphers(1SSL). This list is from:
    #  https://hynek.me/articles/hardening-your-web-servers-ssl-ciphers/
    ssl-default-bind-ciphers ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+3DES:!aNULL:!MD5:!DSS
    ssl-default-bind-options no-sslv3

defaults
        log     global
        mode    tcp
        option  tcplog
        option  dontlognull
        timeout connect 5000
        timeout client  50000
        timeout server  50000
        errorfile 400 /etc/haproxy/errors/400.http
        errorfile 403 /etc/haproxy/errors/403.http
        errorfile 408 /etc/haproxy/errors/408.http
        errorfile 500 /etc/haproxy/errors/500.http
        errorfile 502 /etc/haproxy/errors/502.http
        errorfile 503 /etc/haproxy/errors/503.http
        errorfile 504 /etc/haproxy/errors/504.http

frontend www
        bind ***.***.***.**:80
        default_backend site-backend

backend site-backend
        balance roundrobin
        mode tcp
        server webserver-1 10.240.0.178:80 check
        server webserver-2 10.240.0.42:80 check

Thank you, I really appreciate the help =)


#2

haproxy.service: Start request repeated too quickly.

Looks like systemd received multiple start requests in a short time.

Stop it, wait and start it once, not multiple times.

service haproxy stop
sleep 30
service haproxy start

#3

It might be there is still a process named haproxy, which does not killed and again restarted with command: service haproxy restart, you might alternate it with first kill the haproxy by command: #killall haproxy , and then use the above mentioned command (# service haproxy restart, and # service haproxy status).

If above formula doesnot work, then kill all process related haproxy [#killall haproxy], and start with #/sbin/haproxy -f /etc/haproxy/haproxy.cfg.
It shall work.

All the Best !!!