Re: Connections timing out to OpenLDAP server

[Quanah Gibson-Mount <quanah@stanford.edu>]

--On Friday, August 19, 2005 2:53 PM -0500 Ben Beuchler <insyte@gmail.com> 
wrote:

> On 8/19/05, Quanah Gibson-Mount <quanah@stanford.edu> wrote:
>
> > > Everything else is either schema, index or ACL-related.  I am not
> > > specifically setting cachesize or idlcachesize.  Actually, I can't
> > > even find those mentioned in slapd.conf(5)...
> >
> > They are specific to the BDB backend.  See:
> >
> > man slapd-bdb(5)
> >
> > If you aren't setting them, that will affect your system's performance.
>
> Ah.  The only thing I'm setting from those options is several "index"
> entries.  Anything in particular you recommend I experiment with?

cachesize and idlcachesize

> > I also don't see your DB_CONFIG file anywhere here...
>
> I didn't know it existed before today.  As I haven't manipulated it,
> it's at the (Debian) defaults.  The only values it appears the Debian
> maintainer manipulated are these ones:
>
> set_cachesize   0       2097152
> set_lg_bsize    524288
> set_lk_max_objects      5000
> set_lk_max_locks        5000
> set_lk_max_lockers      5000

The first line doesn't even look valid, as it is supposed to be a triplet. 
But perhaps the third triplet has a default.

I will note that your BDB cache is currently set to 2MB, which is 
*extremely small*.

You can see the information on what the parameters to DB_CONFIG mean at:

<http://www.stanford.edu/services/directory/openldap/configuration/bdb-config-42.html>

I complained heavily to the OpenLDAP package maintainer @ Debian that the 
default cachesize was not sufficient.  You may very well be a victim of 
this.

--Quanah

--
Quanah Gibson-Mount
Principal Software Developer
ITSS/Shared Services
Stanford University
GnuPG Public Key: http://www.stanford.edu/~quanah/pgp.html