Jupyterhub service unavailable error and http :403 forbidden-优快云博客

本文详细介绍了启动JupyterHub过程中遇到的错误信息及其解决办法，包括配置文件的设置、proxy_cmd的弃用、CONFIGPROXY_AUTH_TOKEN的生成等关键步骤。对于初学者或遇到类似问题的用户，本文提供了实用的解决方案。

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root@johnjesus-HCL-Desktop:~# jupyterhub
[W 2018-05-15 14:38:10.001 JupyterHub app:366] JupyterHub.proxy_cmd is deprecated in JupyterHub 0.8, use ConfigurableHTTPProxy.command
[I 2018-05-15 14:38:10.002 JupyterHub app:834] Loading cookie_secret from /home/johnjesus/jupyterhub_cookie_secret
[I 2018-05-15 14:38:10.077 JupyterHub app:1528] Hub API listening on http://127.0.0.1:8081/hub/
[W 2018-05-15 14:38:10.079 JupyterHub proxy:415] 
    Generating CONFIGPROXY_AUTH_TOKEN. Restarting the Hub will require restarting the proxy.
    Set CONFIGPROXY_AUTH_TOKEN env or JupyterHub.proxy_auth_token config to avoid this message.

[I 2018-05-15 14:38:10.079 JupyterHub proxy:458] Starting proxy @ https://*:8000/
[E 2018-05-15 14:38:10.094 JupyterHub app:1623]
    Traceback (most recent call last):
      File "/usr/local/lib/python3.6/dist-packages/jupyterhub/app.py", line 1621, in launch_instance_async
        yield self.start()
      File "/usr/local/lib/python3.6/dist-packages/jupyterhub/app.py", line 1569, in start
        yield self.proxy.check_routes(self.users, self._service_map)
      File "/usr/local/lib/python3.6/dist-packages/jupyterhub/proxy.py", line 294, in check_routes
        routes = yield self.get_all_routes()
      File "/usr/local/lib/python3.6/dist-packages/jupyterhub/proxy.py", line 589, in get_all_routes
        resp = yield self.api_request('', client=client)
    tornado.httpclient.HTTPError: HTTP 403: Forbidden

解决办法：

you can find the running configurable-http-proxy instances with: