[Linux-cluster] Cluster/GFS issue.

[Dave Costakos]

Usually, when I hear about problems like this, it is often a multicast issue
-- at least from my experience.

Can you confirm that cman is able to talk on your multicast address?

If not, I suggest specifying a multicast address in the 224.0.0.111 - 250.

This will require that the whole cluster be reset.  I would avoid putting
startup commands in /etc/rc.local as some suggest -- seems like a red
herring to me. The init scripts should work fine (they do for me on our 3
8-node clusters.

-Dave.

2008/10/23 Allgood, John <jallgood at ohl.com>

>  Hello All
>
>
>
> I am having some issues with building an eight node Xen cluster. Let me
> give some background first. We have 8 dell PE 1950 with 32GB RAM connected
> via dual brocade fiber switchs to an EMC CX-310. The guests images are being
> stored on the SAN.  We are using EMC Powerpath to hand the multipathing. The
> Operating system is Redhat Advanced Platform 5.2 . The filesystems on the
> SAN were created using Conga CLVM/GFS1. We have the heartbeat on an separate
> private network. The fence devices are Dell DRAC's.
>
>  Here is the problem that we are having. We can't on an consistent basic
> get the GFS filesystem mounted. On the nodes that don't connect it will just
> hang on bootup trying to mount the GFS filesystem. All nodes come up and
> join the cluster at this point but only 1 or 2 will completely come up with
> the GFS filesystem mounted. If we do an interactive startup and skip the GFS
> part all systems will come up on the cluster but without the gfs mounted.
>
> At this point I am not sure what to do next.  I am thinking it may be a
> problem with the way the GFS filesystem was created. We just used the
> default settings. The LVM is 668GB created from an RAID10.
>
>
>
> Best Regards
>
>
>
> *John Allgood**
> **Senior Systems Administrator**
> **Turbo, division of OHL**
> **2251 Jesse Jewell Pky. NE**
> **Gainesville, GA 30507**
> **tel: (678) 989-3051  fax: (770) 531-7878**
> **jallgood at ohl.com*
>
> *www.ohl.com***
>
>
>
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>



-- 
Dave Costakos
mailto:david.costakos at gmail.com
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