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Re: Connections timing out to OpenLDAP server

--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:


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