Hi Xiao,

You should watch this video: https://www.youtube.com/watch?v=eqlZD21DME0 and 
also 
give it a look to some videos about libuv 
<https://en.wikipedia.org/wiki/Libuv>.

Regards,



El martes, 18 de agosto de 2015, 1:08:12 (UTC-3), Xiao escribió:
>
> Hi All,
>
> I am new to Node.js. What is the exact meaning of non-blocking I/O 
> operation in Node.js. Is that only for the whole process of one client 
> request, or it is used in the thread of Node.js. The difference here is 
> mean, if it is for one client request, the Node.js will be blocked until 
> the current request is finished, and then handle the next one. If it is for 
> the Node.js thread, the Node.js will push the response callback into the 
> event loop, and then handle the next request. I think the second one should 
> be the correct one, because it is using V8 as the engine, but for my 
> application, it acts the first way. Which is the correct behavior for 
> Node.js or do I need some configuration changes for that?
>
> Thanks.
>

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