Hi I have a configuration where the following test gives : 1. start CS4 on both nodes of a HA pair 2. start the service (doing just echo in a file) on node1 3. poweroff -f node1 ==> so the service is migrating on node2 successfully 4. when node1 is up again, after verification of ping on heartbeat interface, I start again CS4 and on "Starting fence domain:" , it remains stalled In the syslog of node2 , I can see : Mar 31 08:45:26 s_kernel@yack1 kernel: CMAN: node yack0 rejoining Mar 31 08:45:56 s_kernel@yack1 kernel: CMAN: removing node yack0 from the cluster : Missed too many heartbeats Mar 31 08:45:56 s_sys@yack1 fenced[8855]: yack0 not a cluster member after 0 sec post_fail_delay Mar 31 08:45:56 s_sys@yack1 fenced[8855]: fencing node "yack0" Mar 31 08:46:21 s_sys@yack1 fenced[8855]: fence "yack0" success Any idea on this problem ? Thanks Alain -- Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster