> -----Original Message-----
> From: Jalil Feghhi [mailto:jalil.feghhi@xxxxxxxxx]
> Sent: Thursday, September 14, 2006 11:28 PM
> To: users@xxxxxxxxxxxxxxxx
> Subject: [users@httpd] Help debugging 500 Error
>
> We are using Apache 2.0.x with mod_proxy and for a specific
> URL we get a 500 error. I check the error and access log
> files and only see that there was an internal server error in
> the access.log file.
500 usually means that the request caused apache to execute some
server-sided code (eg CGI or PHP) but that the program failed. So this
will be an error in the program apache called - not in apache itself or
in any proxy.
> There is no info in error.log file that
> helps me find out what went wrong.
Are you absolutely sure? Every error in apache (4xx or 5xx response
code) should lead to a line in the error log.. please check again
(cross-reference the timestamps) Are you sure you don't get "Premature
end of script headers"?
> I was wondering how else I can get more info why the request
> failed.
It depends on the server-sided logic - if it's CGI, you can get the
script output by activating ScriptLog (see docs for details).
> I am sure the request doesn't get reverse proxied to
> the destination web server and something happens inside Apache.
This is correct..
But I'm wondering why a dynamic resource would end up getting proxied -
usually, you proxy requests immediately (based on the pattern of the
URL). Can you supply more details of exactly how your site works?
Rgds,
Owen Boyle
Disclaimer: Any disclaimer attached to this message may be ignored.
>
> Any help is appreciated.
>
> -Jalil
>
> --
> Jalil
>
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