--On Thursday, December 08, 2016 10:37 PM +0100 Rick van Rein
<[email protected]> wrote:
AFAIK the HDB backend that was once the default for OpenLDAP has been
replaced with the plain vanilla BerkeleyDB... so it seems that the
replication scheme of the latter can be used. Is that right / does
anyone see problems with that / ...?
BerkeleyDB6 and later does not have a license that is compatible with
OpenLDAP. All support for it as a backend will be removed in the future.
I wouldn't base anything on BDB's replication methods.
For multimaster, I'd advise using delta-syncrepl replication. I've had
numerous clients with multimillion entry DBs where MMR works just fine.
For there to really be an issue would require simultaneous updates to the
same attribute on the same entry, which could happen theoretically but in
practice is not something I've seen occur. And if you're particularly
concerned about such things, then the correct route to go would be to set
up a load balancer in front of the masters so only one specific master gets
write traffic during a given interval, which is referred to as mirror mode
in the admin guide.
Hope that helps.
--Quanah
--
Quanah Gibson-Mount
Product Architect
Symas Corporation
Packaged, certified, and supported LDAP solutions powered by OpenLDAP:
<http://www.symas.com>
