Hi Malcom,
thanks for your response!
On Sat, 04 Apr 2009 12:21:11 +1100
Malcolm Tredinnick <malc...@pointy-stick.com> wrote:
> You're not really trying to solve a valid problem here. The
> development server isn't intended for streaming data or anything like
> that. It's a very simplistic server for basic stuff. So if you're
> trying to do streaming, you should be using a real web server more or
> less immediately. During single-person testing/development with the
> dev server, the periodic EPIPE error is harmless and not worth doing
> anything about.
It's not really the EPIPE error I'm worried about, I'm just trying to
utilize that error to prevent my external command from wasting cpu
cycles by finishing the task, even though the client has already gone
away.
> Then you'll discover that it's not really a problem you have to worry
> about. Firstly, because there are a few things inside Django that
> prevent streaming content from working smoothly and we don't guarantee
> that sending an iterator to the HttpResponse's __init__ method won't
> consume the iterator immediately, rather than streaming it.
Ah, ok. Maybe I should explain my ultimate goal: I want to build a very
simple web service that reacts to GET requests and translates them
into command-line arguments for the external command. The external
command does some very heavy lifting and returns a lot of data. I
would like to stream the returned data to the client and have the
external command terminate immediately, if the client connection dies.
So do I understand you correctly that I would need to skip Django and
write my own request handling code to interface with the command?
Bear in mind that I don't need middleware or any of the other niceties
of Django (like ORM, Admin Interface, templates etc) at this point,
just the request-view-response code. I just wanted to use Django to
kick-start the development a bit.
Cheers,
Marcus
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