The mailing list for listmasters using Sympa

[Miles Fidelman <address@concealed>]

Hi Folks,

I'm currently running a pretty basic high-availability configuration for
our mail server (postfix) and list services (sympa) - they simply run in
a Xen virtual machine, with mirrored disks across two machines (DRBD),
and failover of the VM if something goes wrong (pacemaker).

I'm thinking about migrating the failover host to a 2nd datacenter -
which makes disk mirroring and VM migration a bit trickier, and I really
don't like how brittle all that infrastructure is, so I'm starting to
think about application layer redundancy - two mailservers, two
instances of sympa,  at remote locations, multiple DNS records, and
doing something to replicate ques, configurations, databases, archives,
etc.  The goal is the same:  keep processing traffic if a machine goes
down, and don't lose any data to machine or disk crashes.

Which leads to a question:  Are any of you running such a
configuration?  If so, can you describe what you're doing?  And.. are
there any good references, presentations, etc. that anybody knows about
re. building high-availability, scalable, distributed list processing
infrastructure?

Thank you very much,

Miles Fidelman

--
In theory, there is no difference between theory and practice.
In practice, there is.   .... Yogi Berra