Re: OpenLDAP 2.0.7 problems with binds (ITS#988)

[Markus.Storm@mediaWays.net]

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I *cannot* confirm this. We're happily running 2.0.7 on Solaris 7/gcc.
Memory usage after 50K binds is just 15 MB.

Are all the connections really closed ?
Have you tried playing with the threads and concurrency limits ?

Markus

I.C.Smith@liverpool.ac.uk wrote:
> 
> I was using gcc 2.xx. OS was Solaris 2.6, openLDAP version 2.0.7.
> 
> (H/W: Sun ultra 250, 512 MB RAM - didn't wait around for the inevitable
> core dump)
> 
> -ian.
> 
> --On Thursday, January 25, 2001 11:51 AM -0800 Mike Donnelly
> <donnelly@sendmail.com> wrote:
> 
> > I compiled my version under Solaris 8, with gcc 2.xxx, which I've been
> > told *might* have a problem regarding memory leaks.
> >
> > Does anyone know if this is true?
> >
> > I'm interested to see if anyone has compiled 2.0.7 using cc instead, and
> > whether it has the same issue.
> >
> > "Dr. Ian C. Smith" wrote:
> >
> >> I'd be very interested to hear if anyone else has had similar problems
> >> and even more interested to hear of any solutions. I performed a similar
> >> experiment and the server seemed to be leaking huge amounts of memory -
> >> around 2 MB per 1000 binds (anonymous or simply authenticated) wasn't
> >> being freed. It seemed to keep rising linearly up to 50k binds -- 115 MB
> >> of RAM gone !
> >>
> >> regards,
> >>
> >> -ian.
> >>
> >> ----------------------------------------------
> >> Ian C. Smith,
> >> e-mail: i.c.smith@liverpool.ac.uk
> >> Address: Computer Sevices Department,
> >>          Brownlow Hill Building - room G11,
> >>          The University of Liverpool,
> >>          Liverpool L69 3BX.
> >> --On Wednesday, January 24, 2001 8:03 PM +0000 donnelly@ldapman.org
> >> wrote:
> >>
> >> > Full_Name: Michael Donnelly
> >> > Version: 2.0.7
> >> > OS: Solaris 8
> >> > URL: ftp://ftp.openldap.org/incoming/
> >> > Submission from: (NULL) (63.211.143.38)
> >> >
> >> >
> >> > I've noticed that using OpenLDAP 2.0.7, the closing of an LDAP
> >> > connection does not
> >> > seem to free all the resources used during that connection.
> >> >
> >> > For example, bind (as a user) and immedaitely close the connection.
> >> > (password verification is one reason you might do this.)  Now repeat
> >> > this 50,000 times.
> >> >
> >> > You'll see the amount of RAM used steadily increase, until eventually
> >> > slapd will
> >> >
> >> > core dump.   On my system, a Sun E250 with 2 CPUs and 1GB of ram, I get
> >> > about 700K
> >> > connections before the server drops dead.
> >
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