sqlalchemy.exc.TimeoutError
sqlalchemy.exc.TimeoutError: QueuePool limit of size 5 overflow 10 reached, connection timed out, timeout 30 (Background on this error at: http://sqlalche.me/e/3o7r)

Traceback (most recent call last)
File "/usr/local/lib/python3.6/site-packages/flask/app.py", line 2463, in __call__
return self.wsgi_app(environ, start_response)
File "/usr/local/lib/python3.6/site-packages/werkzeug/middleware/proxy_fix.py", line 228, in __call__
return self.app(environ, start_response)
File "/usr/local/lib/python3.6/site-packages/flask/app.py", line 2449, in wsgi_app
response = self.handle_exception(e)
File "/usr/local/lib/python3.6/site-packages/flask_cors/extension.py", line 161, in wrapped_function
return cors_after_request(app.make_response(f(*args, **kwargs)))
File "/usr/local/lib/python3.6/site-packages/flask/app.py", line 1866, in handle_exception
reraise(exc_type, exc_value, tb)
File "/usr/local/lib/python3.6/site-packages/flask/_compat.py", line 39, in reraise
raise value
File "/usr/local/lib/python3.6/site-packages/flask/app.py", line 2446, in wsgi_app
response = self.full_dispatch_request()
File "/usr/local/lib/python3.6/site-packages/flask/app.py", line 1951, in full_dispatch_request
rv = self.handle_user_exception(e)
File "/usr/local/lib/python3.6/site-packages/flask_cors/extension.py", line 161, in wrapped_function
return cors_after_request(app.make_response(f(*args, **kwargs)))
File "/usr/local/lib/python3.6/site-packages/flask/app.py", line 1820, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "/usr/local/lib/python3.6/site-packages/flask/_compat.py", line 39, in reraise
raise value
File "/usr/local/lib/python3.6/site-packages/flask/app.py", line 1949, in full_dispatch_request
rv = self.dispatch_request()
File "/usr/local/lib/python3.6/site-packages/flask/app.py", line 1935, in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File "/usr/local/lib/python3.6/site-packages/flask_dance/consumer/oauth2.py", line 271, in authorized
results = oauth_authorized.send(self, token=token) or []
File "/usr/local/lib/python3.6/site-packages/blinker/base.py", line 267, in send
for receiver in self.receivers_for(sender)]
File "/usr/local/lib/python3.6/site-packages/blinker/base.py", line 267, in <listcomp>
for receiver in self.receivers_for(sender)]
File "/home/umbrella/app/oauth/facebook.py", line 34, in facebook_logged_in
oauth = query.one()
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/query.py", line 3288, in one
ret = self.one_or_none()
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/query.py", line 3257, in one_or_none
ret = list(self)
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/query.py", line 3330, in __iter__
return self._execute_and_instances(context)
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/query.py", line 3352, in _execute_and_instances
querycontext, self._connection_from_session, close_with_result=True
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/query.py", line 3367, in _get_bind_args
mapper=self._bind_mapper(), clause=querycontext.statement, **kw
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/query.py", line 3345, in _connection_from_session
conn = self.session.connection(**kw)
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/session.py", line 1124, in connection
execution_options=execution_options,
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/session.py", line 1130, in _connection_for_bind
engine, execution_options
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/session.py", line 431, in _connection_for_bind
conn = bind._contextual_connect()
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 2229, in _contextual_connect
self._wrap_pool_connect(self.pool.connect, None),
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 2265, in _wrap_pool_connect
return fn()
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/pool/base.py", line 363, in connect
return _ConnectionFairy._checkout(self)
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/pool/base.py", line 760, in _checkout
fairy = _ConnectionRecord.checkout(pool)
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/pool/base.py", line 492, in checkout
rec = pool._do_get()
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/pool/impl.py", line 131, in _do_get
code="3o7r",
sqlalchemy.exc.TimeoutError: QueuePool limit of size 5 overflow 10 reached, connection timed out, timeout 30 (Background on this error at: http://sqlalche.me/e/3o7r)
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