The mailing list for listmasters using Sympa

["Malcolm Waltz" <address@concealed>]

Hi Warren,

Here at University of the Pacific, we are running Sympa on Solaris 10
on-top of VMWare ESX 4.0 with vMotion enabled.  Disk images are stored
on a NetApp filer using FibreChannel, though we are migrating to NFS and
iSCSI over 10GB Ethernet.  We have an off-site ESX host that can be used
with vMotion, once we have another NetApp set up for replication.  As
Miles Fidelman put it, this is a "brute force approach."  I wouldn't
call it simple or cheap though.  It also doesn't protect you from an OS
level fault or give you the ability to do maintenance without downtime.

I would much prefer to do clustering at the application level.  I
believe I remember seeing some discussion of this on the "sympa-beta"
list during the development of Sympa 6.0.  I believe some of the
features added in Sympa 6.0 were intended to bring it closer to being
clusterable, though still a ways from achieving that goal.


Malcolm Waltz
Unix Systems Administrator III
Office of Information Technology
University of the Pacific


-----Original Message-----
From: address@concealed [mailto:address@concealed] On
Behalf Of Warren Anderson
Sent: Wednesday, August 25, 2010 2:25 PM
To: address@concealed
Cc: address@concealed
Subject: [sympa-users] Redundancy for sympa

Hi,

Does anyone out there require high-availability for their sympa lists?
If so, how do you provide redundancy? Having a back up service that we
can fail-over to would be the obvious thing to do, but then we have the
problem of synchronizing the production service and the backup. We are
using LDAP to provision subscription lists and moderator lists, and are
using kerberos for wwwsympa authentication, so we don't really need to
replicate user information for the lists. However, we would want to
somehow sync the archives if possible, and I think there is information
in the DB back-end (in our case mySQL) that would need to be synched
too.

We can probably figure this out ourselves over time, but I would prefer
to learn from the experience of others if  anyone has some.

Thanks,
Warren

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