Red Hat Bugzilla – Bug 241636
ACL's memory leaks openldap
Last modified: 2007-11-30 17:07:44 EST
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
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.
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.
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.
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