[Linux-HA] HeartBeat-1.2.5:One node stop, the other node start shell script of resource twice!

[=?GB2312?B?taW3os+y?=]

Who can tell me why?
I use command "/etc/init.d/heartbeat stop" to stop a heartbeat service of
one node, but the other node start the shell script of my resource(zmssd)
twice.
But, if I turn off the power of the first node, the second node start the
shell script of my resource(zmssd) only once.

This is my configuration(Is there anything wrong?):
====================
debugfile /var/log/ha-debug
logfile /var/log/ha-log
keepalive 500ms
deadtime 3
warntime 1500ms
initdead 10
udpport 694
ucast eth0 192.168.56.101
auto_failback off
node 192-168-56-100
node 192-168-56-101