On 02/20/2019 03:24 PM, Howard Chu wrote:
Mark Reynolds wrote:
On 2/20/19 5:59 AM, Howard Chu wrote:
Date: Tue, 19 Feb 2019 13:50:11 +0100
From: wodel youchi <wodel.youchi@xxxxxxxxx>
Hi,
is it possible to create a replication matser/master or master/slave
between 389DS and another LDAP server openldap for example?
Regards.
Maybe. OpenLDAP has recently added support for replication using a retro changelog.
It has only been tested against Sun/Oracle DSEE so far
389's retro changelog should be the same as DSEE, so this would be an option. Howard, does this new replication feature in OpenLDAP work in both directions?
Not at the moment. It only allows OpenLDAP to replicate from DSEE. It probably wouldn't be
difficult to write an overlay to generate a compatible changelog, for going the other
direction.
390ds also impelments SyncRepl as a plugin, so this could also be an
option to try, but it would still provide only the direction 389ds
-->openldap.
For the other direction 389ds would have to offer some "pull
replication" feature, which doesn't exist.
A further problem would be in synchronizing updates from several
sources, 389ds uses CSNs and RUVs, openldap also has CSN, which are a
similar concept, but not directly compatible.
So, even if there are approaches to do it, I think we are not there.
The commit is here, includes the code and a test script that sets up the DS and
polls it for changes. We'll probably add persistent search on top of this soon as well.
http://www.openldap.org/devel/gitweb.cgi?p=openldap.git;a=commit;h=e8c62bf8b478411ca162ef4928904ca85738a600
but it may also work with
389DS/RHDS, and if it doesn't work at the moment it probably wouldn't take much to
make it work. I haven't examined the 389DS schema to see how closely it matches DSEE yet.
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