Re: Re[4]: openldap-server-2.2.29: multimaster support

[Raphaël Ouazana-Sustowski <raphael.ouazana@linagora.com>]

On Lun 21 novembre 2005 16:35, John Madden wrote:
>> Ok, so syncrepl does not seem to be a good idea in the case of two
>> masters
>> in different places.  What about the case of two load-balanced masters?
>> Will syncrepl garantee that the data are the same on the two master? Or
>> is
>> it just as old multimaster code: it push (in fact pull) the
>> modifications
>> and does not check that the master's state is like the other's?
>
> Ask yourself: Do you really, seriously need load balancing?  Or are you
> thinking
> that you need load balancing when what you really need is HA?

Some of my customers do.  I agree HA is sufficient in most cases.  But
load balancing is needed in some cases and IMHO simplier to configure in
every cases.

> To the best of my knowledge, there isn't a multi-master implementation on
> the
> market that will allow you to load balance a directory and actually
> guarantee that
> two clients running down two different nodes will get a consistent view of
> an
> object.  Do you know of one?

Maybe ActiveDirectory, but there is a software patent on it.

Raphael Ouazana.