On Sat, 13 May 2000, Michael Boman wrote:
> What I want is to be able to share the queue between n+2 servers on
> each loocation as well as be able to split a single domain's
> mailstorage so each users doesn't need to download his/hers email from
> the other end of the world.
the queue itself cannot be shared due to qmail's way of ensuring
consistancy, however you can share the load between the two machines in
several ways:
a) give each cluster of machines in each location a local IP address from
RFC1918 and configure a name to point to that set of IP addresses. by
using IP routing divert traffic to those IP addresses at each location to
the cluster of machines.
b) use a transport-layer switch to route the trafic
c) simpler version of (a) point the same name to all of the machines and
don't worry if your user's traffic goes to the wrong location. configure
your DNS servers to return IP addresses closest to the user to minimize
this
as far as mail storage goes, move that off onto a separate cluster of
machines and get the mail routers to deliver mail to the machine closest
to where the user is, then pick one of a) b) or c) above
RjL
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