[389-users] Replication

[patrick.morris at hp.com]

On Tue, 11 Jan 2011, harry.devine at faa.gov wrote:

> OK, so we are testing 389-ds in our environment (version 1.2.7.5).  We have 1 machine set up with user accounts, and we just set another one up.  The new one doesn't have any accounts or anything on it yet.  We would like to get replication going between the 2 DS's, but can't find any current documention on how to do it.  When we set up the 2nd machine, we set it up as if it were its own DS (i.e. not tied into the existing one).  Not sure it that is relevant, but I thought I'd mention it for full disclosure.
> 
> We'd like to have this be a 2-way multi-master replication, so if our main DS server ever went down, the 2nd one could pick up and service login requests.  Is there any current documention that explains this anywhere?  Is multi-master the correct method to use for this type of setup?

The 389 wiki has a *ton* of documentation on replication (and just about
everything else). A good start for you might be here:

http://directory.fedoraproject.org/wiki/Howto:MultiMasterReplication

It's not clear from your description exactly what your requirements are,
but if you want to be able to write to either server at any time,
multi-master is the way to go. If you just need a readable fallback
server, it may not be.