Hello,

I am using the new python development server with the app engine 1.8.0 
release. The Google Code page for said dev server here:

https://code.google.com/p/appengine-devappserver2-experiment/

states

   - Multithreaded serving for *better* *performance* for complex 
   applications and more correct semantics e.g. accessing your own application 
   through urlfetch no longer deadlocks.

However, and I don't know if I'm getting the meaning mixed up, but it 
doesn't appear like it can run URLFetches concurrently with one another.

I have a task the fans-out a whole bunch of URLFetches, and they process 
one at a time, very slowly in the new development server. I want them to 
process at the same time.

Furthermore it appears each one starts a new instance because in the dev 
admin console, I refresh the page and there's only one instance listed with 
a request count of 1 at any given time. This is in the new dev server that 
ships with the SDK - this doesn't happen if I clone the Google repo above 
and run from that--but the URLFetches still process serially in either case.

John

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