On Thu, Feb 11, 2016 at 04:16:14PM +0000, Howard Chu wrote: > Pierre-?tienne Meunier wrote: > >When I change one of the databases (called for instance A) in my > >environment, > >I'd like to be able to still keep a copy of A as it was before, and make a > >new > >copy B, that would share all its memory with A, except the changes. > > Not likely to happen. The change you're suggesting would require adding a > reference counter to every page, among other things. The cost of such a > change would be quite high, not worth it for a very obscure feature.
Perhaps explore persisting the LMDB data on a filsystem that supports snapshots? Don't know how safe that is, from a DB integrity point-of-view... > -- > -- Howard Chu > CTO, Symas Corp. http://www.symas.com > Director, Highland Sun http://highlandsun.com/hyc/ > Chief Architect, OpenLDAP http://www.openldap.org/project/ -- Brian Reichert <reich...@numachi.com> BSD admin/developer at large