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From Jack Gostl <>
Subject Re: apache crash
Date Wed, 11 Jul 2001 01:26:15 GMT
On Tue, 10 Jul 2001, Cliff Woolley wrote:

> On Tue, 10 Jul 2001, Jack Gostl wrote:
> > We am running apache 1.3.17 with mod_ssl under AIX 4.2.1. We have a fast
> > CGI app, written in C, that has been running well for app 2 months. Now,
> > twice in the last two days, one of the apache tasks suddenly started using
> > huge amounts of memory. Eventually all of the paging space is used the
> > machine comes crashing down. It wasn't even a particularly busy day.
> > Even though the memory allocated was "charged" to apache, I suspect that
> > fastcgi was somehow involved.
> The first thing I'd do is try to figure out what request it was that
> triggered the loop.  [Presumably some particular (possibly bogus) request
> tripped it off, as opposed to it having just occurred spontaneously after
> working for two months.] Check your access logs and try to figure out what
> the commonality was between the two occurrences.  Then attempt to manually
> duplicate the problem, but be ready with a debugger and top on-hand, ready
> and running.  When the program starts to run away, top should make it
> obvious which pid is causing the problem.  Attach to that pid with the
> debugger, interrupt the process, and get yourself a backtrace.  That
> should help in determining where the problem is happening.

Sensible, but so far the logs show nothing out of the ordinary. Still

Has anyone ever heard of this kind of behaviour? The httpd child growing?

> --Cliff
> --------------------------------------------------------------
>    Cliff Woolley
>    Charlottesville, VA


Jack Gostl

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