Dear All, I am using CentOS4 Update 3 Cluster Suite for i386 Architecture and my linux kernel version is 2.6.9-34.EL I have configured two node cluster My nodes are primary and secondary and I am using cluster to monitoring scripts During reboot or poweroff i am getting the problem is cman stop failed and I have verified the "/var/log/messages" log file and i getting the following messages Jun 12 18:34:13 primary cman: Stopping cman: Jun 12 18:34:16 primary cman: failed to stop cman failed Jun 12 18:34:16 primary cman: Jun 12 18:34:16 primary cman: Jun 12 18:34:16 primary rc: Stopping cman: failed We are not sure why this is happening. Can some one throw light on this. Regards -S.Balaji