[Linux-cluster] Can not establish new cluster 5.3 with luci - quorum error

Administrador de NT ntadmin at fi.upm.es
Mon Aug 31 12:48:27 UTC 2009

Jakov Sosic escribió:
> On Thu, 27 Aug 2009 15:50:11 -0500
> Alan A <alan.zg at gmail.com> wrote:
>> I spoke to our LAN guys and they are saying IGMPv2 should work. I
>> forced the cluster into version two (you can do the same by
>> http://kbase.redhat.com/faq/docs/DOC-3111).
>> So far no luck, trying version 1.
> I spoke to my LAN guys too, but cluster simply cannot work unless
> multicast is set to sparse-dense mode on the heartbeat vlan. Force your
> guys to set it up like the openais page says - believe me... IGMP is
> working, but not in a mode with multiple senders and multiple receivers
> - which is one of the RHCS requests.
> I went and FORCED my LAN guys to type commands from openais page in
> front of me... After that everything worked out as a charm :D
In our case, we have 3Com switches which only understand IGMPv1. Due to 
version 1 requirements for other applications, I had to use a 
administrative multicast address (224.0.0.X) and I didn't change any 
kernel parameters.


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