On Wrote, 30 Nov 2011, Joseph Mack wrote:
> On Wed, 30 Nov 2011, Dean Scothern wrote:
>
> > On Wrote, 30 Nov 2011, Joseph Mack wrote:
> >
> >> On Tue, 29 Nov 2011, Dean Scothern wrote:
> >>
> >>> Hi,
> >>>
> >>> Is there a way to either disable or bypass the localnode behaviour in
> ipvs?
> >>
> >> other than not using it?
> > What alternatives are there?
>
> 1 and 0 are the only two possibilities in a binary system.
>
> localnode is uses a feature of the kernel. It's in LVS because it was
> possible to
> do. It isn't a recommended feature for a production LVS. You can make a
> demo LVS out of two boxes but that's about it.
Mmm a feature, but always enabled?
Perhaps I can stop lvs from using it, by modifying the source?
The documentation (old) says that lvs loading is quite low so I wanted to test
it. At the moment I can't even do that in this case.
When I was asking about alternatives I was wondering If other loadbalancing
systems apart from lvs were available for Linux.
>
> > I have a two box solution in which both nodes are real servers.
> > The boxes are connected via their primary interfaces.
> > Exim(mail) is running on both. Pacemaker is used for HA and can migrate
> the two exims in the usual way.
> > I want to load balance between the two nodes and as I'm not allowed to
> use lvs-dr I've tried to use lvs-nat.
> > To this end I've added a secondary network and again used pacemaker to
> manage the secondary VIPS (and ldirectord).
>
> your diagram didn't survive e-mail. Do you have a mixture of tabs and blanks?
>
Mmm proportional fonts this end maybe
I'l cut and paste from vi:
client
|
Primary Network
__________|_______
|RIP,VIP1 |VIP2,RIP
======== ========
= = =lvsnat=
= exim = = exim =
======== ========
|_______________|
VIP1s,RIP VIP2s, RIP
Secondary Network
> > I really don't want to add a separate load balancer cluster for the sake of
> two machines.
>
> OK. I don't see any other way out of it.
That's a pity.
>
> Joe
>
> --
> Joseph Mack NA3T EME(B,D), FM05lw North Carolina jmack (at) wm7d (dot)
> net - azimuthal equidistant map generator at
> http://www.wm7d.net/azproj.shtml Homepage http://www.austintek.com/
> It's GNU/Linux!
>
> _______________________________________________
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> http://www.linuxvirtualserver.org/
>
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Dr Dean Scothern
Infrastructure
E: dean.scoth...@eduserv.org.uk
T: +44 (0)1225 474379
F: +44 (0)1225 474301
www.eduserv.org.uk
Eduserv is a company limited by guarantee (registered in England & Wales,
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