Roel van Meer wrote:

Hi list!

I've been figuring out how to get the pcache overlay to work, but I'm stuck with one thing: caching of DNs.

Take this example config:

overlay pcache pcache bdb 10000 2 500 100 directory /var/lib/ldap/cache

pcacheAttrset 0 * pcacheAttrset 1 uid

pcacheTemplate (uid=) 0 300 pcacheTemplate (uid=) 1 300

This works for queries like:

ldapsearch "uid=foo" '*'

or

ldapsearch "uid=foo" 'uid'

but NOT for:

ldapsearch "uid=foo" 'dn'

Can anyone tell me if it is at all possible to use pcache for caching DNs?

Things I have tried so far:

• adding 'dn' as a pcacheAttrset, but then slapd fails to start with the error "line 63: attribute type undefined".

That should have told you already, you're barking up the wrong tree. DN is not an attribute.

• adding 'distinguishedName' as a pcacheAttrset, and then the result is cached when I request the distinguishedName attribute, but not when the dn is requested.

I've tried openldap 2.4.40 and 2.4.44 (specifically, the version from Debian jessie and the version from jessie-backports).

Thanks a lot,

Roel