[Gluster-users] Monitor replicated Gluster setup ?

[Stefan Schloesser]

> On 12 Jul 2012, Brian Candler wrote:
> > On Thu, Jul 12, 2012 at 07:38:18AM +0000, Stefan Schloesser wrote:
> > > The reason for the ip switch is the apache: if one fails the other
> > > should take other the workload and continue operation, this is done
> > > via the ip switch.
> >
> > Then that's just switching the public IP which apache listens on, and
> > is nothing to do with glusterfs.  Both servers can have the glusterfs
> > volume mounted all the time.
> 
> 	As Brian said, the shared IP here for Apache is independent of
> Gluster in this particular configuration.  I would recommend something
> lightweight like UCARP so you can avoid running any of the Linux cluster stack
> pieces:
> ---
> http://www.pureftpd.org/project/ucarp
> 
> 	You're already attempting to avoid the cluster stuff anyway and keep
> things simple by using Gluster.  No point in adding all the HA bloat now just to
> balance an IP address.  And UCARP can do that for you!  And don't forget to
> give a nod to the OpenBSD developers who make such wonderful
> technology in the first place.
>
Yeah - exactly "HA bloat" is my line of thinking. Though the man page to ucarp is somewhat limited ... :-(
It seems to be the right direction, monitor ip and trigger a script if something happens. Though it won't note e.g. a crash of apache, will it?
Just pinging a machine is maybe somewhat too limited ... or am I missing something here?
Which unfortunately brings me back to "HA bloat".

Stefan