Stonith = fencing, so the same thing For use corosync with udp look here <a href="http://www.thatsgeeky.com/2011/12/installing-corosync-on-ec2/">http://www.thatsgeeky.com/2011/12/installing-corosync-on-ec2/</a> <div class="gmail_quote">2013/2/27 Maxwell, Jamison [HDS] <<a href="mailto:JMaxwell@pbp1.com" target="_blank">JMaxwell@pbp1.com</a>> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div link="blue" vlink="purple" lang="EN-US"><div>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. <div class="im"> Jamison Maxwell Sr. Systems Administrator HD Supply - Facilities Maintenance </div>From: <a href="mailto:linux-cluster-bounces@redhat.com" target="_blank">linux-cluster-bounces@redhat.com</a> [mailto:<a href="mailto:linux-cluster-bounces@redhat.com" target="_blank">linux-cluster-bounces@redhat.com</a>] On Behalf Of emmanuel segura Sent: Sunday, February 24, 2013 1:32 PM<div><div class="h5"> To: linux clustering Subject: Re: [Linux-cluster] Cannot connect to rgmanager</div></div><div><div class="h5"> Hello Sorry For my late reply, try to configure your fence devices and after start the rgmanager service <div>2013/2/19 Maxwell, Jamison [HDS] <<a href="mailto:JMaxwell@pbp1.com" target="_blank">JMaxwell@pbp1.com</a>><div><div>Yes, rgmanager, cman, ricci, and modclustered are started and start automatically in run levels three through five… <div>Jamison Maxwell Sr. Systems Administrator</div>HD Supply - Facilities Maintenance From: <a href="mailto:linux-cluster-bounces@redhat.com" target="_blank">linux-cluster-bounces@redhat.com</a> [mailto:<a href="mailto:linux-cluster-bounces@redhat.com" target="_blank">linux-cluster-bounces@redhat.com</a>] On Behalf Of emmanuel segura Sent: Tuesday, February 19, 2013 11:03 AM To: linux clustering Subject: Re: [Linux-cluster] Cannot connect to rgmanager<div><div> did you started rgmanager?<div>2013/2/19 Maxwell, Jamison [HDS] <<a href="mailto:JMaxwell@pbp1.com" target="_blank">JMaxwell@pbp1.com</a>> <div><div>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 <a href="http://www.openlogic.com/wazi/bid/188071/" target="_blank">http://www.openlogic.com/wazi/bid/188071/</a> . 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 IPLocal 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/<a href="http://rgmanager.sk" target="_blank">rgmanager.sk</a>"}, 110) = -1 ENOENT (No such file or directory) close(5) = 0write(1, "Could not connect to resource gr"..., 44Could not connect to resource group manager ) = 44exit_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/<a href="http://rgmanager.sk" target="_blank">rgmanager.sk</a>"}, 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: <a href="http://www.redhat.com/archives/linux-cluster/2012-August/msg00156.html" target="_blank">http://www.redhat.com/archives/linux-cluster/2012-August/msg00156.html</a> . 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 Sr. Systems Administrator HD Suppy - Facilities Maintenance </div></div> -- Linux-cluster mailing list <a href="mailto:Linux-cluster@redhat.com" target="_blank">Linux-cluster@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/linux-cluster" target="_blank">https://www.redhat.com/mailman/listinfo/linux-cluster</a> </div> -- esta es mi vida e me la vivo hasta que dios quiera </div></div></div></div> -- Linux-cluster mailing list <a href="mailto:Linux-cluster@redhat.com" target="_blank">Linux-cluster@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/linux-cluster" target="_blank">https://www.redhat.com/mailman/listinfo/linux-cluster</a></div> -- esta es mi vida e me la vivo hasta que dios quiera </div></div></div></div> -- Linux-cluster mailing list <a href="mailto:Linux-cluster@redhat.com">Linux-cluster@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/linux-cluster" target="_blank">https://www.redhat.com/mailman/listinfo/linux-cluster</a> </blockquote></div> -- esta es mi vida e me la vivo hasta que dios quiera