[Tilecache] metatiling across multiple servers

[Paul Spencer]

I am wondering if it is possible to have tile cache make use of meta  
tiles when you have several servers involved in tiling.  Specifically,  
I have something like:

tc1.xxxx.yyy, tc2.xxxx.yyy <- server 1
tc3.xxxx.yyy, tc4.xxxx.yyy <- server 2

so half the tiles are on server 1 and half are on server 2.  This  
makes me think that using meta tiles would be wasting space because  
I'd end up with all the tiles on both servers.  Is there a way to  
configure things so that it can use meta tiles and still end up with  
distributing the disk space between the two servers efficiently?  The  
reason for wanting to use meta tiles is to avoid the minor edge  
effects and duplicate labeling problems that occur when rendering  
tiles using mapserver.

Cheers

Paul