Figured it out! I wasn’t allowing multicast on the vlan interface on my switch. I never even thought about this as an issue because I’m not routing, the nodes are right next to each other. However, tcpdump showed that I was sending tons of multicast, but not receiving any. As soon as I enabled multicast on the vlan interface everything came up. Also, in frustration I dropped cman, rgmanager, modclusterd in favor of corosync + pacemaker, but I believe I would have been as successful with either option. I think I prefer stonith to fencing, though. Lastly, is there a way to use unicast? I realize that multicast would be greatly preferable in 3+ node clusters, but in this two node it would be easier to use unicast. Jamison Maxwell From: linux-cluster-bounces@xxxxxxxxxx [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of emmanuel segura Hello Sorry 2013/2/19 Maxwell, Jamison [HDS] <JMaxwell@xxxxxxxx> Yes, rgmanager, cman, ricci, and modclustered are started and start automatically in run levels three through five… Jamison Maxwell HD Supply - Facilities Maintenance From: linux-cluster-bounces@xxxxxxxxxx [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of emmanuel segura did you started rgmanager? 2013/2/19 Maxwell, Jamison [HDS] <JMaxwell@xxxxxxxx> I am attempting to create a two node cluster where the only resource required would be a shared IP address, however, after a couple of attempts I continue to fail. I have followed a guide located at http://www.openlogic.com/wazi/bid/188071/ . Everything appears to work fine until I get to the point where I actually add the IP address resource, both cluster nodes appear as online and quorate and the configuration validates, but will not enable the new resource. Below I am including any information that I think may be relevant, but feel free to ask for more. =========================================== [root@ hostname]# cat /etc/cluster/cluster.conf <?xml version="1.0"?> <cluster config_version="4" name="hacluster"> <cman expected_votes="1" two_node="1"/> <clusternodes> <clusternode name="actual name of node" nodeid="1" votes="1"> <fence> <method name="single"/> </fence> </clusternode> <clusternode name=" actual name of node " nodeid="2" votes="1"> <fence> <method name="single"/> </fence> </clusternode> </clusternodes> <fencedevices/> <rm> <failoverdomains/> <resources/> <service autostart="1" exclusive="0" name="IP" recovery="relocate"> <ip address="actual shared IP address" monitor_link="on" sleeptime="10"/> </service> </rm> </cluster> =========================================== [root@ hostname]# clusvcadm -e IP Local machine trying to enable service:IP...Could not connect to resource group manager =========================================== [root@ hostname]# strace clusvcadm -e IP … connect(5, {sa_family=AF_FILE, path="/var/run/cluster/rgmanager.sk"}, 110) = -1 ENOENT (No such file or directory) close(5) = 0 write(1, "Could not connect to resource gr"..., 44Could not connect to resource group manager ) = 44 exit_group(1) = ? =========================================== I would most like to call your attention to the line “write(1, " connect(5, {sa_family=AF_FILE, path="/var/run/cluster/rgmanager.sk"}, 110) = -1 ENOENT (No such file or directory)”. There was also a someone who mailed this list with what appears to be the same problem, however, no issue is present in the conversation. The topic is located here: http://www.redhat.com/archives/linux-cluster/2012-August/msg00156.html . This is version 6.3, no iptables and no selinux until I can get this working. I greatly appreciate any assistance that can be offered. Jamison Maxwell
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