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Re: AW: Partitioning questions II
The topics discussed here are covered in
"Understanding and Deploying LDAP Directory Services"
Messages from 19 June 2001 14:38:
> On Mon, 18 Jun 2001, Dan Shriver wrote:
> > From: Tiefnig Daniel <firstname.lastname@example.org>
> > My understanding is that if you want to add/remove/modify
> > entries you have to go through the master? Am I wrong here?
> No. What you are missing is that each partition is embodied in a master
> and zero or more slaves. If you have partitioned your tree then you have
> more than one master, even though each is master *only* of its own
> > In any case, the design I'd like would have one "master" who
> > deals with all such requests and if it doesn't own the entry (a
> > delegated subtree ("partitioning")) it adds the entry to the
> > appropriate slave. I understand that in a normal case it adds
> > the entry to itself and then replicates down to the slave, but
> > shouldn't it be using a similar mechanism (following the
> > referral and doing an action similar to replication on the
> > appropriate slave)?
> > I'm stuck in a "chicken and egg" problem here.
> It is a problem of your own making. Once you give up the notion that an
> inferior server is a slave, it should all become clear. One of the
> inferiors must be a master, and that is the server which receives updates
> on behalf of its partition.
> > Obviously I am very confused, but I don't have another
> > conceptual model to use here. How are things supposed to work?
> > Is there a good reference for how I should be looking at this
> > problem?
> See _Understanding LDAP_ (IBM, SG24-4986-00, I think you can find it at
> redbooks.ibm.com) section 22.214.171.124 (Suffixes and referrals). Also Novell
> has a huge volume of NDS documentation online
> (http://www.novell.com/documentation/Ig/nds73/docui/index.html, for
> example), and their explanations and diagrams are good. And of course for
> OpenLDAP you should study the Administrator's Guide.
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