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Re: [Linux-cluster] Manual multicasting address for CMAN bug



 
Hi Robert,
 
Thanks for your suggestion. I had tried this, and it gave an error when starting cman due to incorrect configuration - turns out it is a 5.x option, not needed for 6.x because it works out the interface based on the cluster ip address.
 
Thanks anyway :)

 
You might try to add the multicast stanza inside the <clusternode> stanza as well.  You can specify an specific interface as well.
 
For example,
                <clusternode name="node1.company.com" nodeid="1" votes="1">
                        <fence>
                                <method name="1">
                                        <device name="iLO_node1"/>
                                </method>
                        </fence>
                        <multicast addr="239.192.15.224" interface="bond1"/>
                </clusternode>
 
I have gotten this to work internally, but your environment may be different.
 
Robert
 
On Mon, Sep 26, 2011 at 4:55 PM, Matthew Painter <matthew painter kusiri com> wrote:
Hi all,
 
I have been trying to set up a cluster of 3 on Red Hat 6.1 using a cisco switch, and therefore a fixed multicast address - 239.192.15.224 in this case.
 
All the docs etc. say to add to the cluster.conf:
 
        <cman>
                <multicast addr="239.192.15.224"/>
        </cman>
 
This seems to work and a cman_tool status brings back the correct multicast address, but has a Quorum status of "Activity Blocked", because the culster nodes never join.
 
*However* if I manually run "cman_tool leave" and then "cman_tool join -m 239.192.15.224", the nodes can see each other.
 
Does anyone know if this is this a known issue? I can't find any information about it.
 
Thanks for all your help :)
 
Matt


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