On Tue, 2008-02-12 at 17:47 +0100, Dieter Kluenter wrote:
You are right, I should have been. We are using OpenLDAP to manage a lot of users for a huge CMS. The ldap server runs on localhost.
After
an OS + hardware + ldap server upgrade (we used Netscape Directory Server 4.16 before), the whole CMS was very slow and from what we
have
deduced, there is no ldap query caching going on. So this might in part be responsible (there are *a lot of* ldap queries).
In fact you may configure the backend (back-bdb) and the frontend caches.
Yeah, stop the presses right here -- the problem isn't fixable by caching queries, it's fixed by properly configuring (the backend, indexes, etc.) OpenLDAP to improve its performance. It'll blow the doors off of NDS, so if you're seeing slow-downs, it's your configuration, not the software. Don't add a layer of dumb (caching) in an attempt to fix this.
Besides, what's "*a lot*" mean?
John