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From Udo Rader <udo.ra...@bestsolution.at>
Subject Re: [users@httpd] "Out of memory" logging format
Date Fri, 26 Aug 2005 14:59:46 GMT
On Fri, 2005-08-26 at 10:20 -0400, Joshua Slive wrote:
> On 8/26/05, Udo Rader <udo.rader@bestsolution.at> wrote:
> > Yet of course I would like to know the exact time and circumstances when
> > such a situtation occurs. When reaching the memory limit, apache
> > produces log entries like this:
> > 
> > -----------CUT-----------
> > [...]
> > ^GOut of memory (Needed 8164 bytes)
> > ^GOut of memory (Needed 8164 bytes)
> > ^GOut of memory (Needed 8164 bytes)
> > ^GOut of memory (Needed 8164 bytes)
> > ^GOut of memory (Needed 8164 bytes)
> > FATAL:  erealloc():  Unable to allocate 76 bytes
> > -----------CUT-----------
> > 
> > Now what I would like to have is a more informative logging message,
> > such as which URL caused the error.
> > 
> > Is that possible?
> 
> In general, no.  Apache considers out of memory to be an unrecoverable
> error, and therefore doesn't try to protect against it in many
> different code paths.
> 
> On the other hand, there is a new module called mod_log_forensice
> included with apache that may help.  It can be used to find requests
> that were received but where no response was sent.  These would
> probably match up with your out-of-memory crashes.
> 
> Joshua.

thanks, this looks very promising.

Udo Rader

-- 
bestsolution.at EDV Systemhaus GmbH
http://www.bestsolution.at


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