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From Arnab Ganguly <agangul...@gmail.com>
Subject Re: [users@httpd] Apache memory hog
Date Fri, 03 Apr 2009 13:39:52 GMT
Did you tried with MaxRequestsPerChild and MaxMemFree directives?
Thanks
-A

On Fri, Apr 3, 2009 at 6:56 PM, Adrian Marsh <Adrian.Marsh@ubiquisys.com>wrote:

> Hi Christian,
>
> Do you think you could ask them to see if they resolved it?
>
> I had similar thoughts, so in my VMware copy I tried various things,
> including working without SSL, but I didn't see the results get any better.
>
> Adrian
>
> -----Original Message-----
> From: Domsch, Christian (IZLBW Extern) [mailto:christian.domsch@iz.bwl.de]
> Sent: 03 April 2009 14:23
> To: users@httpd.apache.org
> Subject: AW: [users@httpd] Apache memory hog
>
> Hello.
>
> A client of our company has similar issues. They run SLES 10 with apache
> 2.2.x and the newest subversion 1.5.x and also use https. For authentication
> they use winbind and not ldap.
>
> They too have the problem, that the apache processes take up a lot of cpu
> cycles and use up the ram to the point, where the processes crash with out
> ouf memory. After that the memory is not freed. Even when the httpd
> processes are stopped (and not crash) the memory is not freed.
>
> I do not know the fine details here, bit the sysadmin found some odd things
> going on with ssl.
>
> -----Urspr√ľngliche Nachricht-----
> Von: Tom Evans [mailto:tevans.uk@googlemail.com]
> Gesendet: Freitag, 3. April 2009 15:16
> An: users@httpd.apache.org
> Cc: aw@ice-sa.com
> Betreff: RE: [users@httpd] Apache memory hog
>
> On Fri, 2009-04-03 at 13:58 +0100, Adrian Marsh wrote:
> > Hi Andre,
> >
> > Thanks for the reply. No its definitely the httpd process.  I see each
> thread consuming hundreds of megs of RES memory being used in TOP.  I just
> restarted it and already each is consuming:
> >
> > 10006 apache    15   0  279m  15m 3160 S  0.0  0.1   0:00.29 httpd
> > 10004 apache    15   0  278m  13m 3400 S  0.0  0.1   0:00.05 httpd
> > 10007 apache    15   0  278m  13m 3048 S  0.0  0.1   0:00.04 httpd
> > 10001 apache    15   0  277m  13m 3456 S  0.0  0.1   0:00.08 httpd
> > 10003 apache    15   0  277m  13m 2976 S  0.0  0.1   0:00.10 httpd
> > 10002 apache    15   0  277m  13m 3112 S  0.0  0.1   0:00.07 httpd
> > 10005 apache    15   0  277m  13m 3080 S  0.0  0.1   0:00.06 httpd
> > 10000 apache    15   0  277m  12m 3432 S  0.0  0.1   0:00.51 httpd
> >
> > Also, I forgot to mention its 1.5.5 of SVN (1.5.2 had a mod_ bugfix for a
> memory leak).
> >
> > What interests me at the moment is diagnosing which module it is (as
> others running 1.5.5 don't report this issue).  It's a fairly vanilla httpd
> setup other than the svn config.
> >
> > Adrian
> >
>
> Doesnt look that bad. That 27[789]m reported as SIZE is shared between the
> processes, shared pages and the like, and the RES isn't excessive in my
> opinion. What does mod_status and mod_server_info say is going on when you
> notice the memory starvation?
>
> What precisely did you change with your yum update? Did that change core
> packages, like libc etc?
>
> Cheers
>
> Tom
>
>
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