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Turned out to be easier than first thought. Used Julian's solution.
Have simply added static routes on each web server in the first cluster
for each node in the second cluster to use the directors default gateway
and visa-versa. Traffic flow looks ok and ipvsadm shows the load being
balanced across the two nodes.
eack webserver config
-----------------------------
/etc/sysconfig/network-scripts/route-bond0
GATEWAY0=10.11.0.3
NETMASK0=255.255.255.0
ADDRESS0=10.11.0.30
GATEWAY1=10.11.0.3
NETMASK1=255.255.255.0
ADDRESS1=10.11.0.31
each tomcat backend config
-------------------------------------
/etc/sysconfig/network-scripts/route-bond0
GATEWAY0=10.11.0.3
NETMASK0=255.255.255.0
ADDRESS0=10.11.0.40
GATEWAY1=10.11.0.3
NETMASK1=255.255.255.0
ADDRESS1=10.11.0.41
GATEWAY2=10.11.0.3
NETMASK2=255.255.255.0
ADDRESS2=10.11.0.42
All happy now.
On Thu, 2006-09-28 at 17:15 -0700, Joseph Mack NA3T wrote:
> On Fri, 29 Sep 2006, Rodney McKee wrote:
>
> >>> I'm looking to have http traffic from 3 real servers from one site
> >>> access 2 real servers for another site using the same director.
> >>> We are looking to have the main site issue requests to a second
> >>> clustered layer and I was looking to setup a second VIP with associated
> >>> real servers and have the traffic load balanced using the existing LVS
> >>> router.
>
> I don't really know what you're doing, but Tom's posting
> gave me a few hints (still might be barking up the wrong
> tree).
>
> You can have a director with two VIPs, each VIP associated
> with its own set of realservers. The realservers associated
> with one VIP, should be able to have client processes
> (calling from the RIPs), connect to the 2nd VIP on the
> director and be forwarded to the second set of realservers.
> The machines in the 2nd LVS (first set of realservers as
> clients, the 2nd VIP and the 2nd set of realservers) are all
> on one network - see "one network LVS-NAT" in the HOWTO.
>
> Joe
>
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