Ralf Narozny wrote:
We got 23 million entries of which more than 2 million are active entries...we can not really reduce the size of our database. Maybe a few thousands, but not millions ;-)
This most likely will not work in OpenLDAP 2.3. You will need to use OpenLDAP 2.4 and configure back-bdb's DN cache size. (The DN cache is not configurable in 2.3, it simply grows without limit.)