Thank you for the quick response.
I have spent a lot of time configuring version 2.4.40. Is there a guide on how to upgrade to 2.4.44 and switch to back-mdb? we rolled out 2.4.40 today and would need to plan the next upgrade.
I did already have indices defined for the database when I did the import.
What tool do you recommend for monitoring ldap performance?
From:
Quanah Gibson-Mount <quanah@symas.com>
Reply-To: Quanah Gibson-Mount <quanah@symas.com>
Date: Wednesday, December 14, 2016 at 1:21 PM
To: "Real, Elizabeth (392K)" <Elizabeth.Real@jpl.nasa.gov>, "openldap-technical@openldap.org" <openldap-technical@openldap.org>
Subject: Re: OpenLDAP performance and slapindex
--On Wednesday, December 14, 2016 9:05 PM +0000 "Real, Elizabeth (392K)"
I'm running OpenLDAP 2.4.40
Upgrade immediately to 2.4.44. The 2.4.40 release was seriously flawed and
had numerous critical bugs around replication.
In looking at ways to improve performance of ldap, is slapindex a tool to
use? Meaning after importing users accounts from an older ldap, should
slapindex be ran? Or is this tool is used when you want to modify/add
entries found in the slapd (cn=config.ldif) and database
((olcDatabase={2}hdb.ldif) configuration files not when users are added
Stop using back-hdb. Switch to back-mdb.
If you already had indices defined for the database when you did the
import, there is no reason to run slapindex. Slapindex should only be used
if you've added a /new/ index to your database. If you are using cn=config
and add a new index, there will be a background thread that will eventually
Whether or not you need to add indexing for given attribute(s) can be
discovered by examining the logs generated by slapd, which will file a
complaint if there is a search performed on an unindexed attribute. You
would need to examine the specific search to see what type(s) of indexing
If slapindex is not a tool to use to monitor performance, what do you
slapindex has never been a tool to monitor anything. It is purely for
(re)generating indices on an existing DB.
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