<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> Does you setup require multicast routing? Maybe the switches have multicast enabled, but aren't capable of running PIM-SM, PIM-DM or PIM-SM/DM or are not configured with support for this. My 2 cents. Todd Merritt wrote: <blockquote cite="mid:4C781092.7010906@email.arizona.edu" type="cite"> <pre wrap="">And after several reboots, it's all online: [root@uaz-so-w52 ~]# clustat Cluster Status for SOA @ Fri Aug 27 12:21:09 2010 Member Status: Quorate Member Name ID Status ------ ---- ---- ------ uaz-so-w52.mosaic.arizona.edu 1 Online, Local uaz-so-w51.mosaic.arizona.edu 2 Online /dev/mapper/soap1 0 Online, Quorum Disk I've seen it show up all as online before briefly and then go offline. Any ideas what could cause this erratic behavior ? Todd On 08/27/2010 09:16 AM, Todd Merritt wrote: </pre> <blockquote type="cite"> <pre wrap="">On 08/27/2010 08:46 AM, <a class="moz-txt-link-abbreviated" href="mailto:Jason_Henderson@Mitel.com">Jason_Henderson@Mitel.com</a> wrote: </pre> <blockquote type="cite"> <pre wrap=""><a class="moz-txt-link-abbreviated" href="mailto:linux-cluster-bounces@redhat.com">linux-cluster-bounces@redhat.com</a> wrote on 08/27/2010 11:28:27 AM: </pre> <blockquote type="cite"> <pre wrap="">I'm trying unsuccessfully to set up a new cluster on redhat 5. The nodes seem to see each other, but they alway start up inquorate and never join up. I'm not sure what else I should be looking at. Iptables is not running. [root@uaz-so-w52 ~]# group_tool type level name id state fence 0 default 00010001 none [1] dlm 1 clvmd 00020001 none [1] dlm 1 rgmanager 00030001 none [1] [root@uaz-so-w51 ~]# group_tool type level name id state [root@uaz-so-w51 ~]# cman_tool nodes Node Sts Inc Joined Name 0 X 0 /dev/mapper/soap1 1 X 0 uaz-so-w52.mosaic.arizona.edu 2 M 7920 2010-08-26 10:04:51 uaz-so-w51.mosaic.arizona.edu [root@uaz-so-w52 ~]# cman_tool nodes Node Sts Inc Joined Name 0 M 0 2010-08-26 09:59:16 /dev/mapper/soap1 1 M 7436 2010-08-26 09:59:04 uaz-so-w52.mosaic.arizona.edu 2 X 0 uaz-so-w51.mosaic.arizona.edu Any help would be greatly appreciated. </pre> </blockquote> <pre wrap="">Looks like they are each a member of their own cluster. Perhaps multicast communication between the two nodes is not working. Are you using RedHat 5.5? </pre> </blockquote> <pre wrap="">Yes, it's rh 5.5. And multicast not working is the track I've been running down. Our network team tells me multicast is enabled within the switch. I had used ssmping to test multicast and it seemed to be working. I just ran it (ssmping) again, and if I start ssmpingd on node 1 and run ssmping from node 2 it works fine. If I start ssmpingd from node 2 and run ssmping from node 1 I get connection refused errors from ssmping. Thanks, Todd -- Linux-cluster mailing list <a class="moz-txt-link-abbreviated" href="mailto:Linux-cluster@redhat.com">Linux-cluster@redhat.com</a> <a class="moz-txt-link-freetext" href="https://www.redhat.com/mailman/listinfo/linux-cluster">https://www.redhat.com/mailman/listinfo/linux-cluster</a> </pre> </blockquote> <pre wrap=""> -- Linux-cluster mailing list <a class="moz-txt-link-abbreviated" href="mailto:Linux-cluster@redhat.com">Linux-cluster@redhat.com</a> <a class="moz-txt-link-freetext" href="https://www.redhat.com/mailman/listinfo/linux-cluster">https://www.redhat.com/mailman/listinfo/linux-cluster</a> </pre> </blockquote> <pre class="moz-signature" cols="72">-- Dan FRINCU Systems Engineer CCNA, RHCE Streamwide Romania </pre> </body> </html>