[Samba] Increasing database size limit

[Jakub Hrozek]

On Thu, Nov 19, 2015 at 02:34:08PM +0100, Volker Lendecke wrote:
> On Thu, Nov 19, 2015 at 02:10:18PM +0100, Jakub Hrozek wrote:
> > On Thu, Nov 19, 2015 at 10:17:24AM +0100, mathias dufresne wrote:
> > > In parallel Oliver Liebel tells around 2 months ago he'll be able to find
> > > funds to develop LMDB backend (in some mail with title "s4 ldb tdb limits")
> > > which could solve the DB size limitation. And the company I'm working for
> > > is still discussing internally (without me :p) about investing for same
> > > development (and others).
> > 
> > I finished the port of the ldb_cache module (I'll push it to github when
> > I finish more tests for this area..), so the last part missing from the
> > mdb ldb back end is indexing and of course even more tests..
> > 
> > For indexing I'm still not sure if I should just reuse exactly what the
> > tdb backend does, maybe yes for the prototype so I can get more testing
> > from others and play with other ideas later...
> 
> This might be completely naive, but regarding the data
> format and indexing, what does OpenLDAP do? They have to
> solve a very similar problem.

It's definitely not naive, it's a good idea. I just thought that staying
with how the proven and stable tdb back end does things for the first
iteration would result in having something testable soon..