Backend confusion

[WanderingGAE]

I'm having a tough time figuring out how to use the Backends properly.

I have it registering and running, but I'm not quite sure how I should be using it... here is the backend code:

class StartHandler(webapp.RequestHandler):

    def get(self):

        logging.debug("Starting up!")

        logservice.flush()

def main():

    application = webapp.WSGIApplication([('/_ah/start', StartHandler)],

                                         debug=True)

    util.run_wsgi_app(application)

I've tried several variations  with logservice, but I never get a log message that the backend has started up.  I really just want to do some datastore work when the backend starts up.  Any help would be appreciated.  

[WanderingGAE]

I've also tried this in the file, no log messages seen.

from google.appengine.ext import webapp

from google.appengine.ext.webapp import util

from google.appengine.api import logservice

import logging

import time

logservice.AUTOFLUSH_ENABLED = False

logging.debug("Starting up!")

logservice.flush()

while True:

    logging.debug("Check!")

    logservice.flush()

    time.sleep(5)

[WanderingGAE]

And my backends.yaml....

backends:

- name: counter

  start: counter.py

  instances: 1

  class: B1

[Justin Haugh]

What's your application ID?  Your should certainly see something in the logs.  Also, you might want to double-check that you're using appcfg backends update (verify with appcfg backends list) and looking at the logs specifically for your backend (using the Version/Backend dropdown).

Justin

[Volker Schönefeld]

I've had the same issues with the backend logservice. As soon as I use
logservice anywhere in the code, no log messages will appear at all,
except for service error 201 and instance startups. I've also posted a
related post here:

http://groups.google.com/group/google-appengine/browse_thread/thread/637e89696e1561ca#

app id is "towermadness", backend is "deleter". I've done all the
things you mentioned (i'm using backends update all the time, and i'm
looking at the backend log).