Include your whole handler file if possible. It is very hard to debug
by guessing about your code.
Robert
On Mon, Aug 1, 2011 at 16:43, piased <pranavade...@gmail.com> wrote:
>
>
> On Jul 18, 8:46 pm, "Nick Johnson (Google)" <nick.john...@google.com>
> wrote:
>> Hi,
>>
>> You are missing this stanza from the end of your handler script:
>>
>> if __name__ == '__main__':
>> main()
>>
>
> I do have that in the handler. The above was a snippet from the
> script. Without that I don't think it would work, which is not the
> case for me since it works the very next time.
>
> After a bit more trial-error it seems like that this is happening
> after the instance in gone (as seen from the dashboard, number of
> instances stats). So, after having got successful response by fetching
> it multiple times as mentioned above, if I wait for some more time
> (few mins.) I can again get the zero response and that correlates
> perfectly to the time the instance is gone.
>
> Also, I found few mentions for "warmup requests" and "loading
> requests". These are primarily in reference to high latency and not
> zero byte, but maybe they are related ?
>
> Right now I just re-issue the request in my startup code if the
> response is blank ... works for me, but not the best solution.
>
>
>
>> This instructs Python to execute your main function on initial import.
>>
>> -Nick Johnson
>>
>>
>>
>> On Thu, Jul 14, 2011 at 11:01 AM, piased <pranavade...@gmail.com> wrote:
>> > Hello All,
>>
>> > I have a simple app which requires login. But instead of redirect the
>> > user directly to google login I have a link on my main page for Sign
>> > In. This page is generated as follows:
>>
>> > class Login(webapp.RequestHandler):
>> > # GET /login
>> > def get(self):
>> > user = users.get_current_user()
>> > if not user:
>> > self.response.out.write("Not signed in ")
>> > self.response.out.write('<a href="%s">Sign In</a>' %
>> > (users.create_login_url('/')))
>> > else:
>> > self.response.out.write('Hello, %s ' % (user.nickname()))
>> > self.response.out.write('<a href="%s">Sign Out</a>' %
>> > (users.create_logout_url('/')))
>>
>> > So the response is pretty small, a few bytes. But if I do a wget to
>> > the above link it give zero bytes in response the first time I fetch
>> > it, on subsequent tries is works fine.
>>
>> > From the logs I see the following message in the first request
>> > """
>> > This request caused a new process to be started for your application,
>> > and thus caused your application code to be loaded for the first time.
>> > This request may thus take longer and use more CPU than a typical
>> > request for your application.
>> > """
>> > Whereas there is no such message in the second request which works.
>>
>> > Is there something I am missing or is appengine trying to do something
>> > for small responses and screwing up especially for new instances ?
>>
>> > I would appreciate any help.
>>
>> > Thanks
>> > -- Pranav
>>
>> > P.S.
>>
>> > Here are the headers for the zero byte response:
>> > HTTP request sent, awaiting response...
>> > HTTP/1.0 200 OK
>> > Date: Thu, 14 Jul 2011 00:25:29 GMT
>> > Content-Type: text/html
>> > Server: Google Frontend
>> > Content-Length: 0
>> > Connection: Keep-Alive
>> > Length: 0 [text/html]
>>
>> > --
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>>
>> --
>> Nick Johnson, Developer Programs Engineer, App Engine
>
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