After installing the HAproxy 1.4 in CentOS 6.4 bydefault logging of haproxy was not enable.To enable the logging of HAProxy you have to enable it in rsyslog (In CentOS 6.4 minimal installation,rsyslog version 5.2 is shipped).

To setup logging in HAproxy,follow the given below steps

Step 1: In Global Section of haproxy.cfg put the value log 127.0.0.1 local0 .Like given below

global
        log 127.0.0.1   local0

Step 2: Create new haproxy configuration file in /etc/rsyslog.d . Here we are keeping the log in localhost or in other words we should say HAproxy server

Note:

• local0.=info -/var/log/haproxy.log defines the http log will be saved in haproxy.log
• local0.notice -/var/log/haproxy-status.log defines the Server status like start,stop,restart,down,up etc. will be saved in haproxy-status.log
• UDPServerRun 514 means opening UDP port no. 514 to listen haproxy messages
  

  vi /etc/rsyslog.d/haproxy.conf
  
  $ModLoad imudp
  $UDPServerRun 514 
  $template Haproxy,"%msg%n"
  local0.=info -/var/log/haproxy.log;Haproxy
  local0.notice -/var/log/haproxy-status.log;Haproxy
  ### keep logs in localhost ##
  local0.* ~ 
  

  
  

  Step 3: Now restart the HAproxy service

  
  

  /etc/init.d/haproxy restart
  

  
  

  After restarting the haproxy service two logs will be created itself i.e haproxy.log and haproxy-status.log

  
  

  Step 4: Check your logrotae file for haproxy also so that logs keep on rotating and compress itself. If bydefault it is not present in /etc/logrotate.d directory then create a new file called haproxy and paste the given below code.

  
  

  Here I am keeping the logs upto 120 days hence rotate 120 and daily is written in file.

  
  

  cat /etc/logrotate.d/haproxy
  
  /var/log/haproxy.log {
      missingok
      notifempty
      sharedscripts
      rotate 120
      daily
      compress
      postrotate
          reload rsyslog >/dev/null 2>&1 || true
      endscript
  }