Re: mod_perl server doesn't reply

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Anders Nielsen wrote:
> On Wed, 2005-03-16 at 21:11 -0500, Stas Bekman wrote:
> 
>>Please see:
>>21.7. Hanging Processes: Detection and Diagnostics
>>http://modperlbook.org/html/ch21_07.html
>>
> 
> 
> Thank you for the reply.
> 
> The problem I described happened again and I was able to get some more
> information.
> 
> The server isn't actually hanging. I put a print STDERR statement in the
> end of the script and it shows up in the error log. The problems is that
> the client doesn't get the response from the server for some reason.
> 
> Our scripst usually ends with a print statement that sends the output to
> STDOUT. When I removed this statement the clients got a (empty) reply.
> Before they where getting no reply at all.
> 
> For debugging purposes I created a script with one parameter called $x.
> The script prints the character 'a' as many times as a parameter says
> (print 'a' x $x). 
> 
> I found out that on small values for $x the script worked while the
> client got no reply for big values. I found the limit (15.982.236) where
> the script worked but if I added 1 the client wouldn't get the reply.
> This limit seemed to change after a while however.
> 
> I hope you or somebody else has some idea of what is wrong. Or at least
> can give me something to look for next time the problem occur.

Anders, do you by chance use a proxy that may have eaten the response?

What do you see in logs/access_log, it tells how many bytes were sent to 
the client.

What happens if you replace print($x) with Apache->request->print($x)



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