Bug 402651 - Openldap server crashes on high modify load
Openldap server crashes on high modify load
Status: CLOSED ERRATA
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: openldap (Show other bugs)
4.6
All Linux
medium Severity medium
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Assigned To: Jan Safranek
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Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2007-11-28 08:20 EST by Jan Safranek
Modified: 2008-07-24 15:51 EDT (History)
1 user (show)

See Also:
Fixed In Version: RHBA-2008-0701
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Environment:
Last Closed: 2008-07-24 15:51:01 EDT
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Regression: ---
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CRM:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:


Attachments (Terms of Use)
reproducer (1.43 KB, text/plain)
2007-11-28 08:27 EST, Jan Safranek
no flags Details
patch (4.10 KB, patch)
2007-11-28 08:30 EST, Jan Safranek
no flags Details | Diff

  None (edit)
Description Jan Safranek 2007-11-28 08:20:53 EST
Version-Release number of selected component (if applicable):
openldap-servers-2.2.13-8.el4_6.1

How reproducible:
sometimes

Steps to Reproduce:
modify one attribute of one entry with multiple clients
  
Actual results:
slapd crashes

Expected results:
slapd lives

Additional info:
already fixed upstream:
http://www.openldap.org/its/index.cgi/Software%20Bugs?id=3188

Check closely memory consumption, it's rumored (its#3213) that there is also
memory leak when two clients modify one attribute at the same time.
Comment 1 Jan Safranek 2007-11-28 08:27:28 EST
Created attachment 271291 [details]
reproducer

Usage:
- install opendlap-servers
- delete any previous ldap databases (rm -rf /var/lib/ldap/*)
- use the default slapd.conf, only uncomment line "rootpw secret"
- start ldap server
- start the script - it will spawn 20 processes, modifying one attribute in
endless loop

After some time slapd hopefully dies. You can stop the clients by "kill
`/tmp/test.pid`".
Comment 2 Jan Safranek 2007-11-28 08:30:50 EST
Created attachment 271311 [details]
patch
Comment 3 Jan Safranek 2007-11-28 09:02:25 EST
I did not notice any problem with the memory consumption, it seems to me there
is no leak.
Comment 4 RHEL Product and Program Management 2007-11-28 22:54:38 EST
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 10 errata-xmlrpc 2008-07-24 15:51:01 EDT
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 therefore 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-2008-0701.html

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