Fabric: Connection.sudo() sometimes raises ThreadException/OSError instead of AuthFailure
invoke.exceptions.ThreadException:
Saw 1 exceptions within threads (OSError):
Thread args: {'kwargs': {'buffer_': ['[sudo] password: '],
'hide': False,
'output': <_io.TextIOWrapper name='<stderr>' mode='w' encoding='UTF-8'>},
'target': <bound method Runner.handle_stderr of <fabric.runners.Remote object at 0x7f066e63a9e8>>}
Traceback (most recent call last):
File "/home/amezin/test/.venv/lib/python3.6/site-packages/invoke/util.py", line 233, in run
super(ExceptionHandlingThread, self).run()
File "/usr/lib/python3.6/threading.py", line 864, in run
self._target(*self._args, **self._kwargs)
File "/home/amezin/test/.venv/lib/python3.6/site-packages/invoke/runners.py", line 750, in handle_stderr
buffer_, hide, output, reader=self.read_proc_stderr
File "/home/amezin/test/.venv/lib/python3.6/site-packages/invoke/runners.py", line 717, in _handle_output
self.respond(buffer_)
File "/home/amezin/test/.venv/lib/python3.6/site-packages/invoke/runners.py", line 884, in respond
self.write_proc_stdin(response)
File "/home/amezin/test/.venv/lib/python3.6/site-packages/invoke/runners.py", line 960, in write_proc_stdin
self._write_proc_stdin(data.encode(self.encoding))
File "/home/amezin/test/.venv/lib/python3.6/site-packages/fabric/runners.py", line 67, in _write_proc_stdin
return self.channel.sendall(data)
File "/home/amezin/test/.venv/lib/python3.6/site-packages/paramiko/channel.py", line 846, in sendall
sent = self.send(s)
File "/home/amezin/test/.venv/lib/python3.6/site-packages/paramiko/channel.py", line 801, in send
return self._send(s, m)
File "/home/amezin/test/.venv/lib/python3.6/site-packages/paramiko/channel.py", line 1198, in _send
raise socket.error("Socket is closed")
OSError: Socket is closed
amezin
All 5 comments
I think what you might be seeing is a different error: I don't think it's getting to the sudo auth phase. I'm seeing this on Python 2.7 but only when stdin is redirected from /dev/null. Maybe try again with pty=True?
matt-hayden
on 9 Apr 2020
@matt-hayden After hours of debugging you just saved me from a mental breakdown. I would also like to add that I only got this error while using multiprocessing.Process even if it's just one process.
luke-goddard
on 10 May 2020
@matt-hayden I've seen this issue on python 3.6, ssh'ing into local Ubuntu 18.04 container (with openssh sshd running in it). The same 'sudo' command in exactly the same configuration was working correctly 99% of the time (raising AuthFailure) and raising OSError in the remaining 1%.
I can't remember if pty was set to True.
Anyway, I'm not using fabric now, and I don't have time to verify that this issue is still present. So I guess I should close the issue
amezin
on 20 May 2020
The error happened, again and yes I was also using a docker container
luke-goddard
on 15 Jun 2020
@luke-goddard , if it occurred within paramiko (like the traceback above) then maybe this is more appropriate as an issue in the paramiko project.
matt-hayden
on 19 Jun 2020
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Most helpful comment
@matt-hayden After hours of debugging you just saved me from a mental breakdown. I would also like to add that I only got this error while using multiprocessing.Process even if it's just one process.