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RE: Apache memory leak?

From: Geoff Rowell <geoff.rowell_at_gmail.com>
Date: Wed, 14 Oct 2009 09:53:37 -0400

Tony Butt wrote:
> On Tue, 2009-10-13 at 10:24 +0200, KYLEE_at_bksv.com wrote:
> > Hi Uli,
> >
> > Thanks for the reply. That's what i thought so. It's definitely high
memory comsumption there.
> > I do not serve anything else for Apache. It's a dedicated subversion
server via http and nothing else.
> >
> The only time I have found excessive memory consumption with apache was
when I tried to use ldap authentication on apache 2.0. The memory usage
would creep up over a period of time, and eventually I had to restart apache
(every few days, or so, I think). I gave up on ldap and the problem went
away.
>
> I have since used ldap authentication with apache 2.2, and there are no
problems there.
> > I have svnadmin running daily for backup. But when the backup service is
not running, it's stuck in the process somehow.
> >
> >
> > Regards,
> > Lee
> >
> > -----Original Message-----
> > From: Ulrich Eckhardt [mailto:eckhardt_at_satorlaser.com]
> > Sent: Monday, October 12, 2009 6:03 PM
> > To: users_at_subversion.tigris.org
> > Subject: Re: Apache memory leak?
> >
> > On Monday 12 October 2009, KYLEE_at_bksv.com wrote:
> > > I have lots of memory issues on my server after the latest update to
> > > my subversion server. I used to run a v1.5.5 server without much
> > > problems on my environment and rebooting the server from time to time
is a must.
> > > It usually happens once every week.
> >
> > Huh? That sounds really bad.
> >
> I agree - apache should normally not need to be rebooted for months at a
time (if ever)
> > > Now that i have updated the subversion server to the latest build
> > > provided by CollabNet due to a valuable fix to this version.
> > >
> > > Ever since, i have to reboot the server once every 2 days due to
> > > non-responding clients and high memory consumption.
> >
> > That sounds even worse!
> >
> > Apropos: Do you have to reboot the machine or does it suffice to
> > restart Apache? The difference is important in order to make out the
culprit.
> >
> > > - httpd takes ~900MB of RAM and ~900MB of virtual memroy.
> >
> Sounds like my ldap problem with 2.0, see above...
> > That sounds like a lot, but I don't know what else you are serving
> > with Apache there.
> >
> > > I do not know what's the reason or the cause of it. Sometimes
> > > svnadmin seems to be running heavily on the server taking up to 50%
> > > of the CPU time.
> >
> > Why is svnadmin running? Who started it and why? That should be a tool
> > for administration and maintenance, not something that regularly runs.
> > The only thing it is good for regularly is to create a dumpfile from a
> > hotcopy for backup purposes.
> >
> > Uli
>

I run the CollabNet Subversion Server 1.6.5 (on W2K3 R2) with basic
authentication and authz - nothing fancy - and I'm also seeing a gradual
increase in the virtual memory size of the Apache process. I've been
restarting Apache every couple of day to control the memory size.

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Received on 2009-10-14 15:54:55 CEST

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