On Tue, 2009-04-14 at 20:16 -0500, Vu Pham wrote: > Ryan Golhar wrote: > > I'm running RHEL 5.3 64-bit. So far, I only want to see that the > > cluster can run. I'll worry about getting GFS after I'm confident this > > works. > > > > I've got three nodes: pico, vail, and whistler. They each have two NIC > > cards, one that provides a public IP address, and another that provides > > private communications. All cluster traffic will go over the private > > network, 192.168.20.0. > > > > I've installed only the following components: > > system-config-cluster-1.0.52-1.1, cman-2.0.98-1, and rgmanager-2.0.38-2. > > > > I've created my cluster.conf file to include these three nodees and > > fence them using a brocade fibre switch (for GFS). > > > > When I start the cluster services on all 3 nodes using the manually > > method of: > > > > /sbin/ccsd; /usr/sbin/cman_tool join > > > > The nodes successfully form a cluster. I am able to leave the cluster > > and kill ccsd as well. > > > > If I try to start the cman service I see: > > > > [root@pico cluster]# /sbin/service cman start > > Starting cluster: > > Loading modules... done > > Mounting configfs... done > > Starting ccsd... done > > Starting cman... done > > Starting daemons... done > > Starting fencing... > > > > > > And it just hangs. I know my fencing is set up correctly because I've > > had nodes fence other nodes before (when I was trying with 6 members). > > If I let it sit for long enough sometimes it finishes successfully. I'm > > not sure what its doing because fence_tool is called and its a binary... > > > > Ryan, > > Anything suspicious in the log when it hangs at fencing ? > Could you show your cluster.conf ? > A hang in fencing may indicate that the cluster does not have quorum. run cman_tool nodes to see a list of nodes and see if half+1 are in the cluster. Regards -steve > Vu > > > Ryan > > > > > > Gordan Bobic wrote: > >> What distro are you using? I've found that: > >> > >> 1) Distros other than RHEL/CentOS can be quirky when it comes to using > >> RHCS. I've even run into problems on Fedora more than once (not to > >> mention > >> that FC hasn't shipped GFS1 since FC5 and GFS2 hasn't been deemed > >> production stable until last month - and we're up to FC10 now). > >> > >> 2) Starting RHCS components using anything except the intended init > >> scripts > >> tends to cause problems. > >> > >> 3) Source of 99% of problems in the rest of the cases (i.e. not > >> covered by > >> 1) and 2) above) is incorrectly configured fencing. > >> > >> Does your setup fall under either of the first two categories? > >> Have you verified beyond doubt that your fencing is configured correctly > >> and that the fencing script gets verification upon success? > >> > >> Gordan > >> > >> On Tue, 14 Apr 2009 12:17:44 -0400, Ryan Golhar <golharam@xxxxxxxxx> > >> wrote: > >>> Hi all, > >>> > >>> Is redhat cluster suite really reliable? I've been having so much > >>> trouble getting a cluster up and running, I'm beginning to second > >>> guess my decision to use this software stack. > >>> > >>> I have 3 nodes (eventually 10) running and set up. The fencing > >>> method is by a brocade fibre switch. The ultimate goal of this > >>> cluster is to shared a SAN connected by fibre. > >>> > >>> I've installed just the bare minimum (before even getting to GFS) to > >>> test the cluster software. Just starting cman cluster services fails > >>> on two of the nodes. > >>> > >>> Even when I try to reboot the nodes, I can't because the whole system > >>> hangs on various processes that don't ever shut down. I have to > >>> physically reboot these boxes. > >>> > >>> The logs fill up with errors about not being able to connect to cman, > >> etc. > >>> I've been at it for awhile now and am not sure this is the best route > >>> anymore. > >>> > >>> Ryan > >> > >> -- > >> Linux-cluster mailing list > >> Linux-cluster@xxxxxxxxxx > >> https://www.redhat.com/mailman/listinfo/linux-cluster > >> > > > > -- > > Linux-cluster mailing list > > Linux-cluster@xxxxxxxxxx > > https://www.redhat.com/mailman/listinfo/linux-cluster > > -- > Linux-cluster mailing list > Linux-cluster@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/linux-cluster -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
