Bug 241636

Summary:	ACL's memory leaks openldap
Product:	Red Hat Enterprise Linux 5	Reporter:	saveline <aveseb>
Component:	openldap	Assignee:	Jan Safranek <jsafrane>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	medium
Version:	5.0	CC:	jplans, k.georgiou
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	RHBA-2007-0499	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-11-07 17:28:46 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description saveline 2007-05-29 08:43:51 UTC

Description of problem:
Openldap consumes all the available memory and the box starts swapping.

Version-Release number of selected component (if applicable):
RHEL 5 and openldap-servers-2.3.27-5

How reproducible:
It appears randomly

Actual results:
Actually, openldap server consumes memory until the box swaps and the service
became very slow. I must do a service ldap restart in order to clear the swap on
the box.

Expected results:
The service shouldn't be restarted weekly.

Before I moved to rhel5 with openldap, my openldap was on a rhel3 with openldap
2.2...and I didn't find any memory's problem on. I found a related topic on
openldap's mailing with a guy who identified this problem. You can found this
here: http://www.openldap.org/lists/openldap-bugs/200612/msg00064.html

He explained that he found this problem on openldap 2.3.30 and 2.3.27 but not on
2.2.26 (which would explain that I never came accross this on RHEL3). This
problem deals with "by set" clause in ACL's definition (which I use too).
Finally a patch was submited and according to the user, it has solved the
problem. You will find this patch at this url:
http://www.openldap.org/lists/openldap-bugs/200612/msg00079.html

This problem seemed to be well known and patched in recent release of openldap. 
That's why I ask if it's possible to correct this in the next openldap update
for RHEL5.

Thanks a lot

Comment 1 Jan Safranek 2007-06-05 07:00:37 UTC

The patch you are referring to just disables set rules, which is probably not
what you want. I have found a patch which solves the leak:

http://www.openldap.org/devel/cvsweb.cgi/servers/slapd/sets.c.diff?hideattic=1&r1=text&tr1=1.29&r2=text&tr2=1.31&f=h

I'll try to put it to next RHEL 5.1 update.

Comment 2 RHEL Program Management 2007-06-05 07:03:37 UTC

This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update
release.

Comment 5 saveline 2007-06-20 09:10:15 UTC

Hi,

Here is some feedback of your fix.
I patched my rhel5 openldap's rpm with your fix and it seems to work very well.
I didn't have to restart my openldap for 2 weeks. Before, I used to do it every
3~5 days. I think it's OK.

Thanks.

Comment 8 errata-xmlrpc 2007-11-07 17:28:46 UTC

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2007-0499.html