Hi PK,

What's the 'instances' you mean here? 
Take my app as example:

app = webapp2.WSGIApplication([
    ('/', MainPage),
    ('/message', MessagePage),
    ('/_ah/channel/connected/', ConnectPage),
    ('/_ah/channel/disconnected/', DisconnectPage)
  ], debug=True) 
Do you mean each RequestHandler class is an instance and requests could be 
passed concurrently to i.e. MessagePage and ConnectPage?

Thanks!
/Brave

On Wednesday, December 12, 2012 5:16:11 PM UTC+8, PK wrote:
>
> Hi Brave,
>
> Even if you set threadsafe to false requests can still be handled in 
> parallel by different instances. If you set it to true more than one 
> requests can be handled in parallel by the same instance, as well. 
>
> PK
>
> On Dec 12, 2012, at 12:43 AM, brave yao <brav...@gmail.com <javascript:>> 
> wrote:
>
> Hi, 
> The GAE doc says "By default, App Engine sends requests serially to a 
> given web server. If you are using the Python 2.7 runtime, you can 
> configure App Engine to send multiple, parallel requests by adding the 
> threadsafe: 
> true element to the header of app.yaml.". How should I understand this 
> statement?
> In fact I define 'threadsafe: false' in my app.yaml. But still I can see 
> requests are routed to my handlers at same time. I suppose with 
> 'threadsafe: false', no other request won't be sent into my server before 
> current handler returns. Is this understanding correct?
> Is this a bug or I miss something here?
>
> PS: the codes locate here: 
> https://code.google.com/p/webrtc-samples/source/browse/trunk/apprtc/
>
> Thanks!
>
> /Brave
>
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