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:
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:
On 08/27/2010 08:46 AM, Jason_Henderson@xxxxxxxxx wrote:
linux-cluster-bounces@xxxxxxxxxx wrote on 08/27/2010 11:28:27 AM:
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.
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?
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
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