Brett @Google wrote:
On Tue, Jun 30, 2009 at 10:19 PM, jakjr <joao.alfredo@gmail.com mailto:joao.alfredo@gmail.com> wrote:
Why not use a Multi-Master replication for this situation ?I don't propose one or the other. But here are some thoughts against :
http://www.watersprings.org/pub/id/draft-zeilenga-ldup-harmful-02.txt
The core issue for me seems to be conflicts with determining who has the "newest" data, and efficiency of transfer. If replication is predominantly in one direction, the replication works better with less latency and there is less opportunity for conflicts.
Well, even with simple master-slave replication there can be subtle problems if an application writes to the master (even through slapo-chain) and reads immediately from the slave.
One has to carefully examine the behaviour of the LDAP client applications before making decisions on replication and fail-over scenarios.
Ciao, Michael.