Problems with dynamic reconfiguration

I can't get dynamic reconfiguration to work. I want to add a webserver to the haproxy load-balancer, so I edit the config file, and issue a -st command. However, haproxy doesn't bring the new server into the rotation, no messages are logged, and essentially nothing happens. An exit code of 1 is returned. If I kill haproxy and relaunch it, the new webserver does enter the rotation, so I don't believe the config is to blame.

I've experimented with all sorts of combinations, but I've included some attempts demonstrating what I'm doing at the end here - haproxy just seems to exit.

The OS is Fedora 4 running on Xen, I'm using haproxy version 1.3.14, from http://haproxy.1wt.eu/download/1.3/bin/haproxy-1.3.14-pcre-40kses-splice-linux-i586.notstripped.gz
# /opt/haproxy/haproxy -v

HA-Proxy version 1.3.14 2007/12/06
Copyright 2000-2007 Willy Tarreau <w#1wt.eu>

Any help or pointers would be greatly appreciated.

Justin SB

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Results


# /opt/haproxy/haproxy -f /etc/haproxy.cfg -p /var/run/haproxy.pid -V - 

d -st $(</var/run/haproxy.pid) ; echo "EXIT CODE= $?"
Available polling systems :
      sepoll : pref=400,  test result OK
       epoll : pref=300,  test result OK
        poll : pref=200,  test result OK
      select : pref=150,  test result OK
Total: 4 (4 usable), will use sepoll.
Using sepoll() as the polling mechanism.
EXIT CODE= 1
# more /var/run/haproxy.pid
2985


# /opt/haproxy/haproxy -f /etc/haproxy.cfg -p /var/run/haproxy.pid -V - 

d -st 2985 ; echo "EXIT CODE= $?"
Available polling systems :
      sepoll : pref=400,  test result OK
       epoll : pref=300,  test result OK
        poll : pref=200,  test result OK
      select : pref=150,  test result OK
Total: 4 (4 usable), will use sepoll.
Using sepoll() as the polling mechanism.
EXIT CODE= 1