Python-连接到AWS Neptune

Question

我在aws中创建了一个海王星实例。我现在如何连接到它？我从笔记本电脑本地尝试了文档中给出的示例。from gremlin_python.structure.graph import Graphfrom gremlin_python.driver.driver_remote_connection import DriverRemoteConnectiongraph = Graph()g = graph.traversal().withRemote(DriverRemoteConnection('ws://my_endpoint:8182/gremlin','g'))print(g.V().limit(2).toList())但是我在以下堆栈跟踪中获得了Timeout异常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对于数据库连接，我缺少任何身份验证吗？

Answer 1

确保您的EC2和Neptune在同一VPC中。

在安全组中，允许端口8182的TCP连接。

尝试将URL从更改('ws://my_endpoint:8182/gremlin','g') 为('wss://my_endpoint:8182/gremlin','g')。

它为我工作。