Re: modifying replicated slave

[Graham Seaman <G.Seaman@lse.ac.uk>]

Quanah Gibson-Mount wrote:
> --On Monday, January 05, 2009 5:05 PM +0000 Graham Seaman 
> <G.Seaman@lse.ac.uk> wrote:
>
> > Hi,
> >
> > I have a busy master directory and need to replicate this to a quieter
> > slave. The slave will have one client, which occasionally needs to make
> > modifications to the directory. As I understand the documentation, in
> > this situation the old slurpd would happily reroute the modification
> > request to the master, and the change would eventually feed back to the
> > slave. But I can't find anything about what happens in this situation
> > with syncrepl. Does it just quietly accept modifications and allow 
> > itself
> > to get out of sync with the master?
>
> (a) slurpd never rerouted requests
> (b) by definition, replicas can't accept updates from clients, thus 
> they can't get out of sync with the master.
> (c) See the "updateref" directive to point clients to the master (but 
> they have to know how to follow referrals)
> (d) See how to set up slapo-chain to chain modifications made to a 
> replica by a client to the master, so the clients don't have to know 
> how to follow referrals.
Thanks for that. I followed the instructions on:

http://www.openldap.org/doc/admin24/overlays.html#Chaining

and it all seems to be working ok :-)

Graham

> --Quanah
>
>
> --
>
> Quanah Gibson-Mount
> Principal Software Engineer
> Zimbra, Inc
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