--On Friday, April 05, 2013 11:46 PM +0000 quanah@zimbra.com wrote:

--On Friday, April 05, 2013 11:36 PM +0000 lm5@ualberta.ca wrote:

...

Full_Name: Leo Mocofan Version: 2.4.31 OS: Debian Testing URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (129.128.11.107)

If you are going to test back-mdb, then you need to use a current OpenLDAP release (2.4.35).

In any case, I don't see a bug report here? It sounds more like you're asking for tuning advice? I would ask what filesystem you are using (ext2? ext4?) etc. For ext4, I had to modify dirty_bytes to keep the Debian/Ubuntu flush process from killing load performance.

Oh, one other note -- I advise avoiding the debian/ubuntu build versions of BDB, if that is what you are using. They do not build BDB with the correct configure options, seriously impacting performance.

--Quanah

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Quanah Gibson-Mount Sr. Member of Technical Staff Zimbra, Inc A Division of VMware, Inc. -------------------- Zimbra :: the leader in open source messaging and collaboration