[lvs-users] active-active by a multipath routes

[Joseph Mack NA3T]

On Fri, 9 May 2008, Siim Põder wrote:

> Hi!
>
> Is anyone running active-active(-active...) LVS setups? Is 
> it saru or something else?

saru was a proof of principle piece of code by Horms a few 
years ago. It was done for one kernel and has not been 
maintained through the subsequent kernels.

> It's seems it should be possible to do it without saru by 
> having multipath route-capable router upstream dividing 
> the traffic between all the directors. If you can manage 
> the routes with OSPF, it should be possible to have 
> active-active directors using more common protocols and 
> software with the added benefit of each director only 
> receiving the packets it ends up handling.
>
> Any thoughts, comments, experiences with anything like this?

few of us have access to routers to try such experiments. So 
it's possible this would work, but few people would be able 
to implement it.

I've been to talks where people manually redirected traffic 
from busy servers to less busy servers on the other side of 
the continent in this way, as load changed during the day, 
so presumably some people are doing this all the time 
already.

How would you tell the routers to divide the traffic?

Joe

-- 
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
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