Michael Dodd wrote:
> We're setting up an LVS cluster with two directors for failover.  I'm
> having a hard time getting the behaviour I want from the directors. 
> When the master fails and the secondary picks up, I don't want the
> master to take back resources when it comes back up.  We're using
> co-equal boxes for directors so there's no reason for us to go through
> the service interruption of moving resources back to the failed primary.
> 
> Right now, if we test it be stopping heartbeat ( /etc/init.d/heartbeat
> stop ) on one of the directors, everything seems to work exactly like we
> want it to.
> 
> If we simulate an outage by pulling the ethernet cable on the
> broadcasting nic,   Failover happens correctly, but when we plug the NIC
> back in, that machine seems to take resources back over again.

That would probably be because you've created a split-brain situation,
and heartbeat is recovering from it by restarting the services on both
machines.

http://linux-ha.org/SplitBrain

Generally, you want to avoid a split-brain condition.  If you have
shared storage you REALLY want to avoid it - since it will trash your
data.  http://linux-ha.org/BadThingsWillHappen


-- 
    Alan Robertson <[EMAIL PROTECTED]>

"Openness is the foundation and preservative of friendship...  Let me
claim from you at all times your undisguised opinions." - William
Wilberforce
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