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RE: AW: Partitioning questions II
On Mon, 18 Jun 2001, Dan Shriver wrote:
> From: Tiefnig Daniel <email@example.com>
> 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
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
example), and their explanations and diagrams are good. And of course for
OpenLDAP you should study the Administrator's Guide.
Mark H. Wood, Lead System Programmer mwood@IUPUI.Edu
Make a good day.