Backends always fail on the dev server

[Richard Arrano]

Hello,
I've been working with the Backends API and tried to run the
counter_demo and am always unsuccessful. Each instance spits out an
error about the connection being refused to /_ah/start. Here's one
example for an instance of loadtest:

[Backend Instance] [loadtest.7] [dev_appserver.py:4248] INFO "GET /_ah/
start HTTP/1.1" 500 -
[Backend Instance] [counter.0] [dev_appserver.py:4201] ERROR Exception
encountered handling request
Traceback (most recent call last):
File "C:\Program Files\Google\google_appengine\google\appengine\tools
\dev_appserver.py", line 4134, in _HandleRequest
dev_appserver_index.SetupIndexes(config.application, root_path)
File "C:\Program Files\Google\google_appengine\google\appengine\tools
\dev_appserver_index.py", line 304, in SetupIndexes
existing_indexes = datastore_admin.GetIndices(app_id)
File "C:\Program Files\Google\google_appengine\google\appengine\api
\datastore_admin.py", line 53, in GetIndices
resp = _Call('GetIndices', req, resp)
File "C:\Program Files\Google\google_appengine\google\appengine\api
\datastore_admin.py", line 102, in _Call
result = apiproxy_stub_map.MakeSyncCall('datastore_v3', call, req,
resp)
File "C:\Program Files\Google\google_appengine\google\appengine\api
\apiproxy_stub_map.py", line 94, in MakeSyncCall
return stubmap.MakeSyncCall(service, call, request, response)
File "C:\Program Files\Google\google_appengine\google\appengine\api
\apiproxy_stub_map.py", line 308, in MakeSyncCall
rpc.CheckSuccess()
File "C:\Program Files\Google\google_appengine\google\appengine\api
\apiproxy_rpc.py", line 156, in _WaitImpl
self.request, self.response)
File "C:\Program Files\Google\google_appengine\google\appengine\ext
\remote_api\remote_api_stub.py", line 252, in MakeSyncCall
response)
File "C:\Program Files\Google\google_appengine\google\appengine\ext
\remote_api\remote_api_stub.py", line 178, in MakeSyncCall
self._MakeRealSyncCall(service, call, request, response)
File "C:\Program Files\Google\google_appengine\google\appengine\ext
\remote_api\remote_api_stub.py", line 190, in _MakeRealSyncCall
encoded_response = self._server.Send(self._path, encoded_request)
File "C:\Program Files\Google\google_appengine\google\appengine\tools
\appengine_rpc.py", line 365, in Send
f = self.opener.open(req)
File "C:\Program Files\Python\lib\urllib2.py", line 381, in open
response = self._open(req, data)
File "C:\Program Files\Python\lib\urllib2.py", line 399, in _open
'_open', req)
File "C:\Program Files\Python\lib\urllib2.py", line 360, in
_call_chain
result = func(*args)
File "C:\Program Files\Python\lib\urllib2.py", line 1107, in
http_open
return self.do_open(httplib.HTTPConnection, req)
File "C:\Program Files\Python\lib\urllib2.py", line 1082, in do_open
raise URLError(err)
URLError: <urlopen error (10061, 'Connection refused')>

Does anyone have any idea how to fix this?

Thanks,
Richard

[Richard Arrano]

I hate to disappoint you, but I never did figure it out. Instead, I worked around it by doing entirely all my backend testing on the production server. I also started using the background_thread functionality, which ONLY works on the production server. So unfortunately my only recommendation to both of you is to just test on production. Sorry guys.

 

-Richard

On Wednesday, August 1, 2012 9:40:01 PM UTC-7, Max Lieblich wrote:

Hi,

Did you ever figure this out? I am running into problems when I try to run dev_appserver.py --backends, always running into this, using either the frontend or backend. It just doesn't work.

  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\apiproxy_stub_map.py", line 570, in check_success
    self.__rpc.CheckSuccess()
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\apiproxy_rpc.py", line 156, in _WaitImpl
    self.request, self.response)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\ext\remote_api\remote_api_stub.py", line 189, in MakeSyncCall
    self._MakeRealSyncCall(service, call, request, response)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\ext\remote_api\remote_api_stub.py", line 201, in _MakeRealSyncCall
    encoded_response = self._server.Send(self._path, encoded_request)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\appengine_rpc.py", line 366, in Send
    f = self.opener.open(req)
  File "C:\Python27\lib\urllib2.py", line 400, in open
    response = self._open(req, data)
  File "C:\Python27\lib\urllib2.py", line 418, in _open
    '_open', req)
  File "C:\Python27\lib\urllib2.py", line 378, in _call_chain
    result = func(*args)
  File "C:\Python27\lib\urllib2.py", line 1207, in http_open
    return self.do_open(httplib.HTTPConnection, req)
  File "C:\Python27\lib\urllib2.py", line 1177, in do_open
    raise URLError(err)
URLError: <urlopen error [Errno 10104] getaddrinfo failed>