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From: vb4607@att.com
Subject: OpenLDAP 2.4.32 - possible memory leak at high load
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1 followups: 1

Major security issue: yes  no

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Date: Tue, 06 Nov 2012 17:36:42 +0000
From: vb4607@att.com
To: openldap-its@OpenLDAP.org
Subject: OpenLDAP 2.4.32 - possible memory leak at high load
Full_Name: Venkatesh Baglodi
Version:  2.4.32 
OS: Red Hat Enterprise Linux Server release 5.5
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (139.76.64.65)


We have been facing frequent memory utilization issues with OpenLDAP 2.4.32 in
our production environment (multi-master mode, 6 servers), which requires
OpenLDAP server instances to be restarted almost every week. Utilization starts
at a lower percentage to start with (2-3%), but then gradually moves up and
never comes down. We have been using OpenLDAP 2.4.32 with hdb backend (BerkelyDB
v5.3.21) on Red Hat Enterprise Linux Server release 5.5 (Tikanga). Are there any
known issues with this version?

Followup 1

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Date: Tue, 06 Nov 2012 09:53:51 -0800
From: Quanah Gibson-Mount <quanah@zimbra.com>
To: vb4607@att.com, openldap-its@openldap.org
Subject: Re: (ITS#7433) OpenLDAP 2.4.32 - possible memory leak at high load
--On Tuesday, November 06, 2012 5:36 PM +0000 vb4607@att.com wrote:

> Full_Name: Venkatesh Baglodi
> Version:  2.4.32
> OS: Red Hat Enterprise Linux Server release 5.5
> URL: ftp://ftp.openldap.org/incoming/
> Submission from: (NULL) (139.76.64.65)
>
>
> We have been facing frequent memory utilization issues with OpenLDAP
> 2.4.32 in our production environment (multi-master mode, 6 servers),
> which requires OpenLDAP server instances to be restarted almost every
> week. Utilization starts at a lower percentage to start with (2-3%), but
> then gradually moves up and never comes down. We have been using OpenLDAP
> 2.4.32 with hdb backend (BerkelyDB v5.3.21) on Red Hat Enterprise Linux
> Server release 5.5 (Tikanga). Are there any known issues with this
> version?

Are you using the default glibc malloc, instead of tcmalloc?  That would be 
a common mistake that results in this sort of behavior.

--Quanah


--

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


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