On Wed, Jul 7, 2010 at 3:10 PM, James Reeves <jree...@weavejester.com> wrote:
> On 7 July 2010 19:04, David Nolen <dnolen.li...@gmail.com> wrote:
>> So something like this:
>> (defn hello-world [request]
>> (future
>> (Thread/sleep 1)
>> (respond! request
>> {:status 200
>> :headers {"Content-Type" "text/html"}
>> :body "Hello world!"})))
>> Is non-blocking and perfectly fine?
>
> Actually that rather defeats the point of a non-blocking server.
> You're still using up a thread, and hence haven't really gained
> anything over:
>
> (defn hello-world [request]
> (Thread/sleep 1)
> {:status 200
> :headers {"Content-Type" "text/html"}
> :body "Hello world!"})
>
> The main advantage of a non-blocking server is that you're don't use
> up a thread waiting for an event (such as the user sending data, or
> some other external trigger).
Actually, a huge benefit of a non-blocking http server is that it
won't create a thread per request. But, don't seen any problem the use
code spawing threads to handle work for one particular request.
In clojure, I think it'll be hard to go NIO all the way (like in node.js).
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