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From Joe Orton <>
Subject Re: [users@httpd] Why does Apache use up all my memory?
Date Wed, 17 Aug 2005 16:17:26 GMT
On Wed, Aug 17, 2005 at 12:12:05PM -0400, George Adams wrote:
> >> Joe> Are these all simple static files, or is /out/ handled by some CGI
> >> Joe> script etc?
> >>
> >> Joe, you're right - they do get passed through a Perl script for
> >> processing.  However, unless I'm mistaken, I don't THINK the following
> >> code would produce the kind of problems I'm seeing:
> >
> >OK, no, it's not your code at fault, it's a bug in httpd.  You can apply
> >this patch: and I
> >guess I should really submit this for backport to 2.0.x.
> Joe, thanks for the patch.  I'll apply it and see if it helps.
> One last followup question, though.  It seems like there must be tons of 
> sites in the world doing what I'm doing - serving a large amount of 
> downloads.  And probably most of those sites are running Apache, and 
> probably a lot of them are using Apache 2.0.x .  How is it that they don't 
> seem to have the same problem?  If this bug has survived in Apache 2 this 
> long, it must be fairly obscure.  Is there some unique set of circumstances 
> that is causing this bug to affect only me and a few others, and not a 
> large number of other Apache servers?

The bug only triggers with:

- a CGI/... script which generates a large response
- a user pointing a download accelerator (or suchlike) at said script.

and it has been reported two times on this list in as many weeks - so 
not that uncommon I guess.


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