[Linux-cluster] CS4/ Heart-beat configuration (contd.)

[Patrick Caulfield]

Alain Moulle wrote:
> Alain Moulle wrote:
> 
>>> Hi
>>>
>>> Is there a way to force the CS4 to use
>>> another interface for Heart-Beat than
>>> the one linked to the hostname ?
>>> And if so, how to ?
> 
> 
>> cman_tool join -n <other hostname>
>> see cman_tool -h (or the man page) for a list of options.
>> -- patrick
> 
> Hi
> OK I have given this a try, and this does not work :
> in fact, it returns : <other_name> not know in cluster.conf
> or something likewise.
> Knowing that, I have tried another thing :
> set a name on eth1 in /etc/hosts such as :
> 10.0.0.2  nodehb #for heart beat
> where is eth0 remains :
> 10.0.0.1  node (which also is the hostname)
> Then in cluster.conf, I have changed all "name" values
> from "node" to "nodehb"
> And this seems to work : I mean the Heart-beat
> frames are effectively running through eth1 now
> and I have tried to failover by doing ifdown eth1 on
> the first node and the failover has been successful.
> 
> So it seems that the Heart-Beat is not linked
> to the IF linked to the hostname, but really linked
> only to the names we put in cluster.conf.

It's related to both, as you found....

> Could someone confirm that point ?
> And eventually tell me which eventual drawback I could
> face to adopt this configuration ?
> 

No, that's almost exactly what you're supposed to do :)
-- 

patrick