--On Monday, August 24, 2020 7:05 PM +0000 [email protected] wrote:

Hello,
I have migrated from HDB to MDB backend and I am seeing higher CPU usage
on my MDB openldap consumers.
openldap version 2.4.45
Syncrepl enabled (with a single openldap provider server which is also
MDB and has no issues and no high cpu).   The database has ~230K users.
data.mdb is about 1.8G in size.


a) You need to be running a current release, not something 4.5 years old.

b) You need to be using delta-syncrepl with a current release, not standard syncrepl

c) Do you know what the server is doing to be using a significant amount of CPU? I.e., have you looked at what it's logging with stats + sync set?

The flags you're playing with generally can help in a high write environent, outside of that they don't do much. I certainly wouldn't expect them to affect CPU usage.

Regards,
Quanah


--

Quanah Gibson-Mount
Product Architect
Symas Corporation
Packaged, certified, and supported LDAP solutions powered by OpenLDAP:
<http://www.symas.com>

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