On 1-jul-2007, at 21:24, Dirk van Oosterbosch, IR labs wrote:
>
> I narrowed down the moment the extra processes are spawned by
> FastCGI to be here:
>
> if request.method == 'POST':
> if not (('poster' in request.FILES) or ('movie' in
> request.FILES)):
The following happens upon receivement of large POST's:
FastCGI starts up the (Django) site script which passes the request
to the view code. Then the script gets untill between the two excerpt
lines above. But because it is a large POST and is not completely
received over the wire yet, it hangs / waits (whatever you wanna call
it) there. This makes FastCGI think that the whole handling of the
request is stalled, upon which FastCGI spawns a new process every 3
seconds (ultimately crashing the server).
If found this old thread on the FastCGI list, which seems to
accurately explains the problem:
http://www.fastcgi.com/archives/fastcgi-developers/2004-January/
003206.html
However, the proposed solution, to put this on the top of the view code:
tmp_response = HttpResponse()
tmp_response.write("Content-type: text/html")
tmp_response.flush()
does not seem to work.
Is text/html the correct Content-type to use with Django?
I would be very surprised if uploading files using Django and FastCGI
does work for anyone at all, with the present code.
Is nobody having troubles with large POST's?
Two more questions:
2. I'm trying to debug this uploading script using print statements
code. These print statement however show up in Apache's error.log
quite late, much later than the warnings and notifications of
FastCGI. Is there a way to flush these print statements so I can find
them in the error.log sooner?
3. What is the exact behavior when a request containing a POST comes
in? Shouldn't it be buffering the data while the data comes in and be
telling FastCGI it is handling the request? What is exactly happening
between those two lines in my code above?
Best regards,
dirk
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