我在AWS上创建了一个Neptune实例。现在我该如何连接它?
我尝试了文档中提供的示例,从我的笔记本电脑本地连接。请参考文档。
但是我遇到了超时异常,以下是堆栈跟踪信息。
我尝试了文档中提供的示例,从我的笔记本电脑本地连接。请参考文档。
from gremlin_python.structure.graph import Graph
from gremlin_python.driver.driver_remote_connection import DriverRemoteConnection
graph = Graph()
g = graph.traversal().withRemote(DriverRemoteConnection('ws://my_endpoint:8182/gremlin','g'))
print(g.V().limit(2).toList())
但是我遇到了超时异常,以下是堆栈跟踪信息。
File "/home/cegprakash/.virtualenvs/cegprakash-6Wq6Rd61/lib/python3.5/site-packages/gremlin_python/driver/driver_remote_connection.py", line 45, in __init__
password=password)
File "/home/cegprakash/.virtualenvs/cegprakash-6Wq6Rd61/lib/python3.5/site-packages/gremlin_python/driver/client.py", line 76, in __init__
self._fill_pool()
File "/home/cegprakash/.virtualenvs/cegprakash-6Wq6Rd61/lib/python3.5/site-packages/gremlin_python/driver/client.py", line 88, in _fill_pool
conn = self._get_connection()
File "/home/cegprakash/.virtualenvs/cegprakash-6Wq6Rd61/lib/python3.5/site-packages/gremlin_python/driver/client.py", line 101, in _get_connection
self._transport_factory, self._executor, self._pool)
File "/home/cegprakash/.virtualenvs/cegprakash-6Wq6Rd61/lib/python3.5/site-packages/gremlin_python/driver/connection.py", line 40, in __init__
self.connect()
File "/home/cegprakash/.virtualenvs/cegprakash-6Wq6Rd61/lib/python3.5/site-packages/gremlin_python/driver/connection.py", line 46, in connect
self._transport.connect(self._url)
File "/home/cegprakash/.virtualenvs/cegprakash-6Wq6Rd61/lib/python3.5/site-packages/gremlin_python/driver/tornado/transport.py", line 33, in connect
lambda: websocket.websocket_connect(url))
File "/home/cegprakash/.virtualenvs/cegprakash-6Wq6Rd61/lib/python3.5/site-packages/tornado/ioloop.py", line 458, in run_sync
return future_cell[0].result()
File "/home/cegprakash/.virtualenvs/cegprakash-6Wq6Rd61/lib/python3.5/site-packages/tornado/concurrent.py", line 238, in result
raise_exc_info(self._exc_info)
File "<string>", line 4, in raise_exc_info
File "/home/cegprakash/.virtualenvs/cegprakash-6Wq6Rd61/lib/python3.5/site-packages/tornado/stack_context.py", line 316, in wrapped
ret = fn(*args, **kwargs)
File "/home/cegprakash/.virtualenvs/cegprakash-6Wq6Rd61/lib/python3.5/site-packages/tornado/simple_httpclient.py", line 307, in _on_timeout
raise HTTPError(599, error_message)
tornado.httpclient.HTTPError: HTTP 599: Timeout while connecting
我是否缺少任何身份验证才能连接到数据库?