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slapd is pinned at 100% utilization

To: "openldap-technical@openldap.org" <openldap-technical@openldap.org>
Subject: slapd is pinned at 100% utilization
From: Bryce Powell <Bryce.Powell@TELUS.COM>
Date: Wed, 15 Jun 2011 14:25:55 -0600
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Thread-topic: slapd is pinned at 100% utilization

Hi,

I have two OpenLDAP 2.4.11 servers, using BDB 4.6.21 (Patches 4.6.21.1 & 4.6.21.2 & 4.6.21.3 applied), hosted on CentOS 5.2, setup for multi-master replication. Works great except that every couple of months either one of the slapd servers will pin the CPU at 100%. Requests continue to be served without any noticeable degradation in response, and no discernable errors in the LDAP logs.

I see the forums frequently mention CPU utilization issues, but most of the time this seems to be related to non-indexed queries, which I don’t believe is the cause in this case.

Restarting slapd resolves the issue, temporarily …

Any suggestions would be appreciated.

Regards,

Bryce Powell

Follow-Ups:
- Re: slapd is pinned at 100% utilization
  - From: Quanah Gibson-Mount <quanah@zimbra.com>

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