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openaicellular / oaic

Core software for Open AI Cellular
https://openaicellular.github.io/oaic/
GNU General Public License v3.0
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Connection Refused Error While Deploying NexRAN xAPP #125

Closed leviosacz closed 1 year ago

leviosacz commented 1 year ago

Hello all,

I am encountering an issue while attempting to deploy the NexRAN xAPP, following the instructions outlined in the https://openaicellular.github.io/oaic/nexran1.html.

During the deployment process, specifically in the "Deploying the xApp" section, when I execute the following command: 

curl -L -X POST "http://$KONG_PROXY:32080/onboard/api/v1/onboard/download" --header 'Content-Type: application/json' --data-binary "@nexran-onboard.url"

I am confronted with the following error message: 

ConnectionRefusedError: [Errno 111] Connection refused

Please note that the full error message is quite lengthy due to an accompanying HTML file. Here is a part with error message for reference:

$ curl -L -X POST "http://$KONG_PROXY:32080/onboard/api/v1/onboard/download" --header 'Content-Type: application/json' --data-binary "@nexran-onboard.url"
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
  "http://www.w3.org/TR/html4/loose.dtd">
<html>
  <head>
    <title>AttributeError: 'ConnectionError' object has no attribute 'message' // Werkzeug Debugger</title>
    <link rel="stylesheet" href="?__debugger__=yes&amp;cmd=resource&amp;f=style.css"
        type="text/css">
    <!-- We need to make sure this has a favicon so that the debugger does
         not by accident trigger a request to /favicon.ico which might
         change the application state. -->
    <link rel="shortcut icon"
        href="?__debugger__=yes&amp;cmd=resource&amp;f=console.png">
    <script src="?__debugger__=yes&amp;cmd=resource&amp;f=jquery.js"></script>
    <script src="?__debugger__=yes&amp;cmd=resource&amp;f=debugger.js"></script>
    <script type="text/javascript">
      var TRACEBACK = 140161265159952,
          CONSOLE_MODE = false,
          EVALEX = true,
          EVALEX_TRUSTED = false,
          SECRET = "g2fKOlM8aHBpxs0XsRBJ";
    </script>
  </head>
  <body style="background-color: #fff">
    <div class="debugger">
<h1>AttributeError</h1>
<div class="detail">
  <p class="errormsg">AttributeError: 'ConnectionError' object has no attribute 'message'</p>
</div>

...

<div class="plain">
  <form action="/?__debugger__=yes&amp;cmd=paste" method="post">
    <p>
      <input type="hidden" name="language" value="pytb">
      This is the Copy/Paste friendly version of the traceback.  <span
      class="pastemessage">You can also paste this traceback into
      a <a href="https://gist.github.com/">gist</a>:
      <input type="submit" value="create paste"></span>
    </p>
    <textarea cols="50" rows="10" name="code" readonly>Traceback (most recent call last):
  File &quot;/usr/local/lib/python3.7/site-packages/urllib3/connection.py&quot;, line 157, in _new_conn
    (self._dns_host, self.port), self.timeout, **extra_kw
  File &quot;/usr/local/lib/python3.7/site-packages/urllib3/util/connection.py&quot;, line 84, in create_connection
    raise err
  File &quot;/usr/local/lib/python3.7/site-packages/urllib3/util/connection.py&quot;, 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 &quot;/usr/local/lib/python3.7/site-packages/urllib3/connectionpool.py&quot;, line 672, in urlopen
    chunked=chunked,
  File &quot;/usr/local/lib/python3.7/site-packages/urllib3/connectionpool.py&quot;, line 387, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File &quot;/usr/local/lib/python3.7/http/client.py&quot;, line 1252, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File &quot;/usr/local/lib/python3.7/http/client.py&quot;, line 1298, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File &quot;/usr/local/lib/python3.7/http/client.py&quot;, line 1247, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File &quot;/usr/local/lib/python3.7/http/client.py&quot;, line 1026, in _send_output
    self.send(msg)
  File &quot;/usr/local/lib/python3.7/http/client.py&quot;, line 966, in send
    self.connect()
  File &quot;/usr/local/lib/python3.7/site-packages/urllib3/connection.py&quot;, line 184, in connect
    conn = self._new_conn()
  File &quot;/usr/local/lib/python3.7/site-packages/urllib3/connection.py&quot;, line 169, in _new_conn
    self, &quot;Failed to establish a new connection: %s&quot; % e
urllib3.exceptions.NewConnectionError: &lt;urllib3.connection.HTTPConnection object at 0x7f79d66c20d0&gt;: 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 &quot;/usr/local/lib/python3.7/site-packages/requests/adapters.py&quot;, line 449, in send
    timeout=timeout
  File &quot;/usr/local/lib/python3.7/site-packages/urllib3/connectionpool.py&quot;, line 760, in urlopen
    **response_kw
  File &quot;/usr/local/lib/python3.7/site-packages/urllib3/connectionpool.py&quot;, line 760, in urlopen
    **response_kw
  File &quot;/usr/local/lib/python3.7/site-packages/urllib3/connectionpool.py&quot;, line 760, in urlopen
    **response_kw
  File &quot;/usr/local/lib/python3.7/site-packages/urllib3/connectionpool.py&quot;, line 720, in urlopen
    method, url, error=e, _pool=self, _stacktrace=sys.exc_info()[2]
  File &quot;/usr/local/lib/python3.7/site-packages/urllib3/util/retry.py&quot;, line 436, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='192.168.86.33', port=5010): Max retries exceeded with url: /config_files/nexran-config-file.json (Caused by NewConnectionError('&lt;urllib3.connection.HTTPConnection object at 0x7f79d66c20d0&gt;: 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 &quot;/usr/local/lib/python3.7/site-packages/xapp_onboarder/api/onboard.py&quot;, line 86, in download_config_and_schema_and_onboard
    response_content = session.get(config_file_url, timeout=settings.HTTP_TIME_OUT)
  File &quot;/usr/local/lib/python3.7/site-packages/requests/sessions.py&quot;, line 543, in get
    return self.request('GET', url, **kwargs)
  File &quot;/usr/local/lib/python3.7/site-packages/requests/sessions.py&quot;, line 530, in request
    resp = self.send(prep, **send_kwargs)
  File &quot;/usr/local/lib/python3.7/site-packages/requests/sessions.py&quot;, line 643, in send
    r = adapter.send(request, **kwargs)
  File &quot;/usr/local/lib/python3.7/site-packages/requests/adapters.py&quot;, line 516, in send
    raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPConnectionPool(host='192.168.86.33', port=5010): Max retries exceeded with url: /config_files/nexran-config-file.json (Caused by NewConnectionError('&lt;urllib3.connection.HTTPConnection object at 0x7f79d66c20d0&gt;: 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 &quot;/usr/local/lib/python3.7/site-packages/flask/app.py&quot;, line 2463, in __call__
    return self.wsgi_app(environ, start_response)
  File &quot;/usr/local/lib/python3.7/site-packages/flask/app.py&quot;, line 2449, in wsgi_app
    response = self.handle_exception(e)
  File &quot;/usr/local/lib/python3.7/site-packages/flask_restplus/api.py&quot;, line 584, in error_router
    return original_handler(e)
  File &quot;/usr/local/lib/python3.7/site-packages/flask/app.py&quot;, line 1866, in handle_exception
    reraise(exc_type, exc_value, tb)
  File &quot;/usr/local/lib/python3.7/site-packages/flask/_compat.py&quot;, line 38, in reraise
    raise value.with_traceback(tb)
  File &quot;/usr/local/lib/python3.7/site-packages/flask/app.py&quot;, line 2446, in wsgi_app
    response = self.full_dispatch_request()
  File &quot;/usr/local/lib/python3.7/site-packages/flask/app.py&quot;, line 1951, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File &quot;/usr/local/lib/python3.7/site-packages/flask_restplus/api.py&quot;, line 584, in error_router
    return original_handler(e)
  File &quot;/usr/local/lib/python3.7/site-packages/flask/app.py&quot;, line 1820, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File &quot;/usr/local/lib/python3.7/site-packages/flask/_compat.py&quot;, line 38, in reraise
    raise value.with_traceback(tb)
  File &quot;/usr/local/lib/python3.7/site-packages/flask/app.py&quot;, line 1949, in full_dispatch_request
    rv = self.dispatch_request()
  File &quot;/usr/local/lib/python3.7/site-packages/flask/app.py&quot;, line 1935, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File &quot;/usr/local/lib/python3.7/site-packages/flask_restplus/api.py&quot;, line 325, in wrapper
    resp = resource(*args, **kwargs)
  File &quot;/usr/local/lib/python3.7/site-packages/flask/views.py&quot;, line 89, in view
    return self.dispatch_request(*args, **kwargs)
  File &quot;/usr/local/lib/python3.7/site-packages/flask_restplus/resource.py&quot;, line 44, in dispatch_request
    resp = meth(*args, **kwargs)
  File &quot;/usr/local/lib/python3.7/site-packages/xapp_onboarder/api/endpoints/onboard_ep.py&quot;, line 70, in post
    return download_config_and_schema_and_onboard(config_file_url, controls_schema_url)
  File &quot;/usr/local/lib/python3.7/site-packages/xapp_onboarder/api/onboard.py&quot;, line 88, in download_config_and_schema_and_onboard
    log.error(err.message)
AttributeError: 'ConnectionError' object has no attribute 'message'</textarea>
  </form>
</div>
<div class="explanation">
  The debugger caught an exception in your WSGI application.  You can now
  look at the traceback which led to the error.  <span class="nojavascript">
  If you enable JavaScript you can also use additional features such as code
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<!--

Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/urllib3/connection.py", line 157, in _new_conn
    (self._dns_host, self.port), self.timeout, **extra_kw
  File "/usr/local/lib/python3.7/site-packages/urllib3/util/connection.py", line 84, in create_connection
    raise err
  File "/usr/local/lib/python3.7/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 "/usr/local/lib/python3.7/site-packages/urllib3/connectionpool.py", line 672, in urlopen
    chunked=chunked,
  File "/usr/local/lib/python3.7/site-packages/urllib3/connectionpool.py", line 387, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File "/usr/local/lib/python3.7/http/client.py", line 1252, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/usr/local/lib/python3.7/http/client.py", line 1298, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/usr/local/lib/python3.7/http/client.py", line 1247, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/usr/local/lib/python3.7/http/client.py", line 1026, in _send_output
    self.send(msg)
  File "/usr/local/lib/python3.7/http/client.py", line 966, in send
    self.connect()
  File "/usr/local/lib/python3.7/site-packages/urllib3/connection.py", line 184, in connect
    conn = self._new_conn()
  File "/usr/local/lib/python3.7/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 0x7f79d66c20d0>: 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 "/usr/local/lib/python3.7/site-packages/requests/adapters.py", line 449, in send
    timeout=timeout
  File "/usr/local/lib/python3.7/site-packages/urllib3/connectionpool.py", line 760, in urlopen
    **response_kw
  File "/usr/local/lib/python3.7/site-packages/urllib3/connectionpool.py", line 760, in urlopen
    **response_kw
  File "/usr/local/lib/python3.7/site-packages/urllib3/connectionpool.py", line 760, in urlopen
    **response_kw
  File "/usr/local/lib/python3.7/site-packages/urllib3/connectionpool.py", line 720, in urlopen
    method, url, error=e, _pool=self, _stacktrace=sys.exc_info()[2]
  File "/usr/local/lib/python3.7/site-packages/urllib3/util/retry.py", line 436, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='192.168.86.33', port=5010): Max retries exceeded with url: /config_files/nexran-config-file.json (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f79d66c20d0>: 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 "/usr/local/lib/python3.7/site-packages/xapp_onboarder/api/onboard.py", line 86, in download_config_and_schema_and_onboard
    response_content = session.get(config_file_url, timeout=settings.HTTP_TIME_OUT)
  File "/usr/local/lib/python3.7/site-packages/requests/sessions.py", line 543, in get
    return self.request('GET', url, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/requests/sessions.py", line 530, in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/local/lib/python3.7/site-packages/requests/sessions.py", line 643, in send
    r = adapter.send(request, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/requests/adapters.py", line 516, in send
    raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPConnectionPool(host='192.168.86.33', port=5010): Max retries exceeded with url: /config_files/nexran-config-file.json (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f79d66c20d0>: 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 "/usr/local/lib/python3.7/site-packages/flask/app.py", line 2463, in __call__
    return self.wsgi_app(environ, start_response)
  File "/usr/local/lib/python3.7/site-packages/flask/app.py", line 2449, in wsgi_app
    response = self.handle_exception(e)
  File "/usr/local/lib/python3.7/site-packages/flask_restplus/api.py", line 584, in error_router
    return original_handler(e)
  File "/usr/local/lib/python3.7/site-packages/flask/app.py", line 1866, in handle_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/local/lib/python3.7/site-packages/flask/_compat.py", line 38, in reraise
    raise value.with_traceback(tb)
  File "/usr/local/lib/python3.7/site-packages/flask/app.py", line 2446, in wsgi_app
    response = self.full_dispatch_request()
  File "/usr/local/lib/python3.7/site-packages/flask/app.py", line 1951, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/usr/local/lib/python3.7/site-packages/flask_restplus/api.py", line 584, in error_router
    return original_handler(e)
  File "/usr/local/lib/python3.7/site-packages/flask/app.py", line 1820, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/local/lib/python3.7/site-packages/flask/_compat.py", line 38, in reraise
    raise value.with_traceback(tb)
  File "/usr/local/lib/python3.7/site-packages/flask/app.py", line 1949, in full_dispatch_request
    rv = self.dispatch_request()
  File "/usr/local/lib/python3.7/site-packages/flask/app.py", line 1935, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/usr/local/lib/python3.7/site-packages/flask_restplus/api.py", line 325, in wrapper
    resp = resource(*args, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/flask/views.py", line 89, in view
    return self.dispatch_request(*args, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/flask_restplus/resource.py", line 44, in dispatch_request
    resp = meth(*args, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/xapp_onboarder/api/endpoints/onboard_ep.py", line 70, in post
    return download_config_and_schema_and_onboard(config_file_url, controls_schema_url)
  File "/usr/local/lib/python3.7/site-packages/xapp_onboarder/api/onboard.py", line 88, in download_config_and_schema_and_onboard
    log.error(err.message)
AttributeError: 'ConnectionError' object has no attribute 'message'

-->

I would appreciate any guidance or assistance in resolving this issue. Please let me know if any additional information is needed to diagnose and address this problem effectively.

leviosacz commented 1 year ago

I solved this. I didn't do the previous procedure "xApp Deployment - General Guidelines". So there is no service listening on port 5010.