[horde] Scalability of Horde

Ralf Lang lang at b1-systems.de
Tue Nov 13 20:03:18 UTC 2012

Am 13.11.2012 17:20, schrieb Balazs Varga:
> Hi,
> has anyone experiences with scalability of the application and the
> modules? I'm talking about > 1million existing users in the client's
> ldap.
> I don't know (yet) the exact numbers about the requests/sec or
> login/day. (my estimations are 200k login/day and 10k paralell
> sessions)
> We're thinking seperated frontends and a (hardware) load balancer may
> do the trick (we can assume the backend has enough performance).
> We'd like to use the webmail, calendar and maybe some custom modules
> built with the framework.
> Has anyone performance measurements? Maybe any ideas or advices?
> Thanks,
> Balazs

You need to have good and redundant backend architectures (database,
imap/smtp, ldap/user source.

Performance of custom apps cannot be measured without further knowledge.

I know that the Rdo library (ORM layer) with some patches that went into
horde 5 has been deployed in a custom heavy duty project but I cannot go
into details.

Ralf Lang
Linux Consultant / Developer
Tel.: +49-170-6381563
Mail: lang at b1-systems.de

B1 Systems GmbH Osterfeldstraße 7 / 85088 Vohburg /
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