I can connect to my database in __init__.py, but connecting to the database
in a view function times out. I'm using the DataStax python driver. I get
the same result if I create the connection somewhere else and import it, so
I really doubt it's caused by a timeout due to initialising the connection.
about to create client
SimpleClient created
Traceback (most recent call last):
File
"/home/taylor/projects/tacle/env34/lib/python3.4/site-packages/pyramid-1.5-py3.4.egg/pyramid/router.py",
line 242, in __call__
response = self.invoke_subrequest(request, use_tweens=True)
File
"/home/taylor/projects/tacle/env34/lib/python3.4/site-packages/pyramid-1.5-py3.4.egg/pyramid/router.py",
line 217, in invoke_subrequest
response = handle_request(request)
File
"/home/taylor/projects/tacle/env34/lib/python3.4/site-packages/pyramid-1.5-py3.4.egg/pyramid/tweens.py",
line 21, in excview_tween
response = handler(request)
File
"/home/taylor/projects/tacle/env34/lib/python3.4/site-packages/pyramid-1.5-py3.4.egg/pyramid/router.py",
line 163, in handle_request
response = view_callable(context, request)
File
"/home/taylor/projects/tacle/env34/lib/python3.4/site-packages/pyramid-1.5-py3.4.egg/pyramid/config/views.py",
line 355, in rendered_view
result = view(context, request)
File
"/home/taylor/projects/tacle/env34/lib/python3.4/site-packages/pyramid-1.5-py3.4.egg/pyramid/config/views.py",
line 501, in _requestonly_view
response = view(request)
File "./tacle/event_views.py", line 63, in event_list
caclient.connect(['127.0.0.1'])
File "./cassaconn/clients.py", line 22, in connect
self.session = cluster.connect()
File
"/home/taylor/projects/tacle/env34/lib/python3.4/site-packages/cassandra/cluster.py",
line 546, in connect
self.control_connection.connect()
File
"/home/taylor/projects/tacle/env34/lib/python3.4/site-packages/cassandra/cluster.py",
line 1498, in connect
self._set_new_connection(self._reconnect_internal())
File
"/home/taylor/projects/tacle/env34/lib/python3.4/site-packages/cassandra/cluster.py",
line 1533, in _reconnect_internal
raise NoHostAvailable("Unable to connect to any servers", errors)
cassandra.cluster.NoHostAvailable: ('Unable to connect to any servers',
{'127.0.0.1': OperationTimedOut('errors=Timed out creating connection,
last_host=None',)})
[pid: 2130|app: 0|req: 2/2] 127.0.0.1 () {38 vars in 641 bytes} [Fri Jun 6
21:47:43 2014] GET /event_list => generated 0 bytes in 5007 msecs (HTTP/1.1
500) 0 headers in 0 bytes (0 switches on core 0)
And the view code:
@view_config(route_name="event_list",
renderer="templates/events/list_events.jinja2")
def event_list(request):
tacs = {}
print('about to create client')
caclient = SimpleClient()
caclient.connect(['127.0.0.1'])
print('able to connect to cassandra server')
#caclient.catest()
print("---------page reload-----------")
return dict(resource=request.context, tacs=tacs)
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