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[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: Hostname mismatch, certificate is not valid for 'localhost'. (_ssl.c:997)
Context
Operating System and version: Ubuntu 22.04.1
JupyterLab version: 3.4.4
Command Line Output
ubuntu@VM-4-8-ubuntu:~$ jupyter lab stop
Shutting down server on 8888...
SSL Error on 9 ('127.0.0.1', 8888): [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: Hostname mismatch, certificate is not valid for 'localhost'. (_ssl.c:997)
Traceback (most recent call last):
File "/home/ubuntu/.local/bin/jupyter-lab", line 8, in
sys.exit(main())
File "/home/ubuntu/.local/lib/python3.10/site-packages/jupyter_server/extension/application.py", line 594, in launch_instance
serverapp.start()
File "/home/ubuntu/.local/lib/python3.10/site-packages/jupyter_server/serverapp.py", line 2814, in start
self.start_app()
File "/home/ubuntu/.local/lib/python3.10/site-packages/jupyter_server/serverapp.py", line 2710, in start_app
super().start()
File "/home/ubuntu/.local/lib/python3.10/site-packages/jupyter_core/application.py", line 258, in start
self.subapp.start()
File "/home/ubuntu/.local/lib/python3.10/site-packages/jupyter_server/serverapp.py", line 608, in start
self._shutdown_or_exit(port, server)
File "/home/ubuntu/.local/lib/python3.10/site-packages/jupyter_server/serverapp.py", line 583, in _shutdown_or_exit
if not self.shutdown_server(server):
File "/home/ubuntu/.local/lib/python3.10/site-packages/jupyter_server/serverapp.py", line 579, in shutdown_server
return shutdown_server(server, log=self.log)
File "/home/ubuntu/.local/lib/python3.10/site-packages/jupyter_server/serverapp.py", line 516, in shutdown_server
raise ex
File "/home/ubuntu/.local/lib/python3.10/site-packages/jupyter_server/serverapp.py", line 508, in shutdown_server
fetch(
File "/home/ubuntu/.local/lib/python3.10/site-packages/jupyter_server/utils.py", line 352, in fetch
response = HTTPClient(AsyncHTTPClient).fetch(request)
File "/home/ubuntu/.local/lib/python3.10/site-packages/tornado/httpclient.py", line 134, in fetch
response = self._io_loop.run_sync(
File "/home/ubuntu/.local/lib/python3.10/site-packages/tornado/ioloop.py", line 529, in run_sync
return future_cell[0].result()
File "/home/ubuntu/.local/lib/python3.10/site-packages/tornado/simple_httpclient.py", line 340, in run
stream = await self.tcp_client.connect(
File "/home/ubuntu/.local/lib/python3.10/site-packages/tornado/tcpclient.py", line 288, in connect
stream = await stream.start_tls(
File "/home/ubuntu/.local/lib/python3.10/site-packages/tornado/iostream.py", line 1389, in _do_ssl_handshake
self.socket.do_handshake()
File "/usr/lib/python3.10/ssl.py", line 1341, in do_handshake
self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: Hostname mismatch, certificate is not valid for 'localhost'. (_ssl.c:997)
The text was updated successfully, but these errors were encountered:
Manually migrated from jupyterlab/jupyterlab#12980 - during the triage meeting we though that this is most likely a server issue. CC @tjc0726
Command Line Output
The text was updated successfully, but these errors were encountered: