[BUG] Error on running app

[hv7214]

I'm submitting a

• bug report.
• feature request.

Current Behaviour:

Followed all steps given in README.md, and then ran python app.py resulted in error.

Expected Behaviour:

App should be up on localhost:3000.

Steps to reproduce:

Follow steps given in README.md

Log

Traceback (most recent call last):
File "/home/harshit/hydra-python-agent-gui/venv/lib/python3.6/site-packages/urllib3/connection.py", line 157, in _new_conn
(self._dns_host, self.port), self.timeout, **extra_kw
File "/home/harshit/hydra-python-agent-gui/venv/lib/python3.6/site-packages/urllib3/util/connection.py", line 84, in create_connection
raise err
File "/home/harshit/hydra-python-agent-gui/venv/lib/python3.6/site-packages/urllib3/util/connection.py", line 74, in create_connection
sock.connect(sa)
ConnectionRefusedError: [Errno 111] Connection refused

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/home/harshit/hydra-python-agent-gui/venv/lib/python3.6/site-packages/urllib3/connectionpool.py", line 672, in urlopen
chunked=chunked,
File "/home/harshit/hydra-python-agent-gui/venv/lib/python3.6/site-packages/urllib3/connectionpool.py", line 387, in _make_request
conn.request(method, url, **httplib_request_kw)
File "/usr/lib/python3.6/http/client.py", line 1254, in request
self._send_request(method, url, body, headers, encode_chunked)
File "/usr/lib/python3.6/http/client.py", line 1300, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "/usr/lib/python3.6/http/client.py", line 1249, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/usr/lib/python3.6/http/client.py", line 1036, in _send_output
self.send(msg)
File "/usr/lib/python3.6/http/client.py", line 974, in send
self.connect()
File "/home/harshit/hydra-python-agent-gui/venv/lib/python3.6/site-packages/urllib3/connection.py", line 184, in connect
conn = self._new_conn()
File "/home/harshit/hydra-python-agent-gui/venv/lib/python3.6/site-packages/urllib3/connection.py", line 169, in _new_conn
self, "Failed to establish a new connection: %s" % e
urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPConnection object at 0x7ff0371452b0>: Failed to establish a new connection: [Errno 111] Connection refused

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/home/harshit/hydra-python-agent-gui/venv/lib/python3.6/site-packages/requests/adapters.py", line 449, in send
timeout=timeout
File "/home/harshit/hydra-python-agent-gui/venv/lib/python3.6/site-packages/urllib3/connectionpool.py", line 720, in urlopen
method, url, error=e, _pool=self, _stacktrace=sys.exc_info()[2]
File "/home/harshit/hydra-python-agent-gui/venv/lib/python3.6/site-packages/urllib3/util/retry.py", line 436, in increment
raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='localhost', port=8080): Max retries exceeded with url: /serverapi/vocab (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7ff0371452b0>: Failed to establish a new connection: [Errno 111] Connection refused',))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "app.py", line 15, in
agent = Agent(url)
File "/home/harshit/hydra-python-agent-gui/venv/src/hydra-agent/hydra_agent/agent.py", line 30, in init
self.fetch_apidoc()
File "/home/harshit/hydra-python-agent-gui/venv/src/hydra-agent/hydra_agent/agent.py", line 47, in fetch_apidoc
jsonld_api_doc = super().get(self.entrypoint_url + '/vocab').json()
File "/home/harshit/hydra-python-agent-gui/venv/lib/python3.6/site-packages/requests/sessions.py", line 546, in get
return self.request('GET', url, **kwargs)
File "/home/harshit/hydra-python-agent-gui/venv/lib/python3.6/site-packages/requests/sessions.py", line 533, in request
resp = self.send(prep, **send_kwargs)
File "/home/harshit/hydra-python-agent-gui/venv/lib/python3.6/site-packages/requests/sessions.py", line 646, in send
r = adapter.send(request, **kwargs)
File "/home/harshit/hydra-python-agent-gui/venv/lib/python3.6/site-packages/requests/adapters.py", line 516, in send
raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPConnectionPool(host='localhost', port=8080): Max retries exceeded with url: /serverapi/vocab (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7ff0371452b0>: Failed to establish a new connection: [Errno 111] Connection refused',))

[xadahiya]

Do you have hydrus running?

[hv7214]

@xadahiya yeah somehow server got down. After turning it up got this error:
loading... of graph creating entrypoint node split entrypoint into 2 types of endpoints collection and classes classes endpoint or accessing classes accessing every collection in entrypoint commiting Traceback (most recent call last): File "app.py", line 15, in <module> agent = Agent(url) File "/home/harshit/hydra-python-agent-gui/venv/src/hydra-agent/hydra_agent/agent.py", line 31, in __init__ self.initialize_graph() File "/home/harshit/hydra-python-agent-gui/venv/src/hydra-agent/hydra_agent/agent.py", line 58, in initialize_graph self.graph.main(self.entrypoint_url, self.api_doc, True) File "/home/harshit/hydra-python-agent-gui/venv/src/hydra-agent/hydra_agent/redis_core/graph_init.py", line 69, in main self.redis_graph.commit() File "/home/harshit/hydra-python-agent-gui/venv/src/redisgraph/redisgraph/graph.py", line 96, in commit return self.query(query) File "/home/harshit/hydra-python-agent-gui/venv/src/redisgraph/redisgraph/graph.py", line 130, in query response = self.redis_con.execute_command("GRAPH.QUERY", self.name, q, "--compact") File "/home/harshit/hydra-python-agent-gui/venv/lib/python3.6/site-packages/redis/client.py", line 839, in execute_command return self.parse_response(conn, command_name, **options) File "/home/harshit/hydra-python-agent-gui/venv/lib/python3.6/site-packages/redis/client.py", line 853, in parse_response response = connection.read_response() File "/home/harshit/hydra-python-agent-gui/venv/lib/python3.6/site-packages/redis/connection.py", line 718, in read_response raise response redis.exceptions.ResponseError: unknown command 'GRAPH.QUERY'

[Mec-iS]

@Guttz please give a hint

[gustavodemorais]

For you to run the client you need:
1 - Running hydrus (the server)
2 - Running Redis Server(local client caching)
3 - Run the Client

Did you run the specified Redis version? sudo docker run -p 6379:6379 -it --rm redislabs/redisgraph:2.0-edge

[gustavodemorais]

Other people have been having similar problems. When you guys are able to solve these issues and manage to run everything, make sure to open a PR to update the readme if you feel you can make it better, please.