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Re: Slapd pegs CPU every ten minutes
--On Thursday, January 11, 2018 7:06 PM +0000 "Singley, Norman"
<Norman.Singley@mso.umt.edu> wrote:
I have an issue with oldap 2.36 in which every ten minutes, slapd starts
consuming all available CPU resources briefly. When this happens ldap
searches timeout.
I'm going to assume you mean openldap 2.4.36? That release is over 4 years
old, and there have been numerous fixes to OpenLDAP since that release.
I have bumped up the cache size to 1.5 GB dn2id.bdb and id2entry.bdb are
approx. 60 mb combined.
I get errors (mismatched version) when I run DB_STAT (database
environment version mismatch)
You probably need to use a version specific db_stat command, if you're
using the OpenLDAP provided by your distribution (i.e., db_stat4.7 or
similar, depending on what version of BDB OpenLDAP was linked to)
Is there anything else I can look at to help troubleshoot? I am wondering
what would cause slapd to peg the cpu at exactly 10 minute intervals.
A cron job causing a large search or similar? There's little information
to work on here.
Finally, I would note that back-bdb/hdb are deprecated and back-mdb is the
preferred backend with current OpenLDAP releases. back-mdb has numerous
advantages in relation to performance, etc, over back-bdb/hdb.
--Quanah
--
Quanah Gibson-Mount
Product Architect
Symas Corporation
Packaged, certified, and supported LDAP solutions powered by OpenLDAP:
<http://www.symas.com>