RE: OpenLDAP 2.0.X master. OpenLDAP 2.1.X slave

[Darren Gamble <darren.gamble@sjrb.ca>]

Good day,

Thanks for your reply.

> > We're trying to set up LDAP replication between a 2.0.27 master and an
> > openldap 2.1.29 slave.  The goal is to upgrade the servers to more
> recent
> > versions in the coming months, but we're trying to get it working as-is.
> > Master is Red Hat 9, slave is Fedora Core 2.

> > My guess is that a 2.0.X master server simply does not supply this
> attribute
> > to its slaves, and that it's just not possible for this combination of
> > versions to interoperate

> Your data isn't schema compliant, and you most likely have something
> writing non-schema-compliant data into it.

We are 100% positive that the data is compliant.  We can even add the
records in question to the slave via a manual slapadd with no problems.

> Replicating from 2.1 to 2.0 will be less fun ... so upgrade the slaves
> first ...

As Dave Lewney pointed out (the answer to the original question), a 2.1
slave won't work with a 2.0 master, so this is not possible.  I am guessing
that the same is with a 2.2 slave with a 2.0 master, although I would sure
like to hear otherwise.
 
> BTW, before someone else suggests it as the answer to every question
> from users not running 2.2 ... you probably should consider 2.2 as 2.1
> is now "historical".

Yep, we know.  2.2 has lots of useful replication features that we'd like
anyway.

It looks like we'll have a very challenging upgrade to do, if the master and
every single slave need to be upgraded at the same time.

Thanks again for your help,

============================
Darren Gamble
Planner, Regional Services
Shaw Cablesystems GP
630 - 3rd Avenue SW
Calgary, Alberta, Canada
T2P 4L4
(403) 781-4948