hi,all
I config cluster by redhat cluster suite .One month later ,master host cluster serivce was interrupted.look over /var/log/messages,show below:

Oct 16 04:03:01 jndbs1 clumembd[5052]: <warning> sending broadcast message failed Resource temporarily unavailable
Oct 16 04:03:32 jndbs1 last message repeated 62 times
Oct 16 04:04:33 jndbs1 last message repeated 125 times
Oct 16 04:05:34 jndbs1 last message repeated 124 times
Oct 16 04:06:35 jndbs1 last message repeated 125 times
Oct 16 04:07:36 jndbs1 last message repeated 124 times

cluster config file:
cluster.xml

<?xml version="1.0"?>
<cluconfig version="3.0">
<clumembd broadcast="yes" interval="500000" loglevel="5" multicast="no" multicast_ipaddress="" thread="yes" tko_count="20"/>
<cluquorumd loglevel="5" pinginterval="" tiebreaker_ip="10.157.248.62"/>
<clurmtabd loglevel="5" pollinterval="4"/>
<clusvcmgrd loglevel="5"/>
<clulockd loglevel="5"/>
<cluster config_viewnumber="6" key="b01d67e4406206b8fe33374cd1452c92" name="Red Hat Clumanager Cluster"/>
<sharedstate driver="libsharedraw.so" rawprimary="/dev/raw/raw1" rawshadow="/dev/raw/raw2" type="raw"/>
<members>
<member id="0" name="jndbs1" watchdog="yes"/>
<member id="1" name="jndbs2" watchdog="yes"/>
</members>
<services>
<service checkinterval="100" failoverdomain="jn_domain" id="0" name="jn_service" userscript="/etc/custom/cluster_ctl.sh">
<service_ipaddresses>
<service_ipaddress broadcast="" id="0" ipaddress="10.157.248.35" netmask="255.255.255.224"/>
</service_ipaddresses>
<device id="0" name="/dev/cciss/c0d1p6" sharename="">
<mount forceunmount="yes" fstype="ext3" mountpoint="/uniface" options="rw"/>
</device>
<device id="1" name="/dev/cciss/c0d1p5" sharename="">
<mount forceunmount="yes" fstype="ext3" mountpoint="/oracle" options="rw"/>
</device>
</service>
</services>
<failoverdomains>
<failoverdomain id="0" name="jn_domain" ordered="no" restricted="yes">
<failoverdomainnode id="0" name="jndbs1"/>
<failoverdomainnode id="1" name="jndbs2"/>
</failoverdomain>
</failoverdomains>
</cluconfig>