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upgrade 2.2.x -> 2.3.x, sync repl replica compatibility?
We run an OpenLDAP master with some 5-6 sync repl replicas. Several
of our replicas are on clusters with only loosely coupled
administration. Currently all these servers (master and slaves)
still run some versions of OpenLDAP 2.2.x. We would very much like
to upgrade to 2.3.x as we've had some stability problems with the
What I'm not sure about is how to go about the upgrade. All these
servers are compiled from source, so there's no problem upgrading
them individually. However, it would be a serious problem trying to
synchronize upgrading all of them at once.
Does anybody have any experience or might be able to tell me or point
me to docs (which I failed to find) if there's an upgrade path (e.g.
master first, slaves first, any order OK) that can avoid having to
restart all these servers simultaneously on the new software?