socket.timeout: _ssl.c:817: The handshake operation timed out

[Birne94]

Occasionally, sentry fails to track errors on our EC2 instances in production. This has been happening on different installs with different versions of raven for the past months. The problem might be related to #1109.

Sentry responded with an error: <urlopen error _ssl.c:817: The handshake operation timed out> (url: https://sentry.io/api/xxx/store/)
Traceback (most recent call last):
  File "/usr/lib/python3.6/urllib/request.py", line 1318, in do_open
    encode_chunked=req.has_header('Transfer-encoding'))
  File "/usr/lib/python3.6/http/client.py", line 1239, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/usr/lib/python3.6/http/client.py", line 1285, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/usr/lib/python3.6/http/client.py", line 1234, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/usr/lib/python3.6/http/client.py", line 1026, in _send_output
    self.send(msg)
  File "/usr/lib/python3.6/http/client.py", line 964, in send
    self.connect()
  File "/usr/local/lib/python3.6/dist-packages/raven/utils/http.py", line 38, in connect
    sock, ca_certs=ca_certs, cert_reqs=ssl.CERT_REQUIRED)
  File "/usr/lib/python3.6/ssl.py", line 1149, in wrap_socket
    ciphers=ciphers)
  File "/usr/lib/python3.6/ssl.py", line 814, in __init__
    self.do_handshake()
  File "/usr/lib/python3.6/ssl.py", line 1068, in do_handshake
    self._sslobj.do_handshake()
  File "/usr/lib/python3.6/ssl.py", line 689, in do_handshake
    self._sslobj.do_handshake()
socket.timeout: _ssl.c:817: The handshake operation timed out

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.6/dist-packages/raven/transport/threaded.py", line 165, in send_sync
    super(ThreadedHTTPTransport, self).send(url, data, headers)
  File "/usr/local/lib/python3.6/dist-packages/raven/transport/http.py", line 43, in send
    ca_certs=self.ca_certs,
  File "/usr/local/lib/python3.6/dist-packages/raven/utils/http.py", line 66, in urlopen
    return opener.open(url, data, timeout)
  File "/usr/lib/python3.6/urllib/request.py", line 526, in open
    response = self._open(req, data)
  File "/usr/lib/python3.6/urllib/request.py", line 544, in _open
    '_open', req)
  File "/usr/lib/python3.6/urllib/request.py", line 504, in _call_chain
    result = func(*args)
  File "/usr/local/lib/python3.6/dist-packages/raven/utils/http.py", line 46, in https_open
    return self.do_open(ValidHTTPSConnection, req)
  File "/usr/lib/python3.6/urllib/request.py", line 1320, in do_open
    raise URLError(err)
urllib.error.URLError: <urlopen error _ssl.c:817: The handshake operation timed out>

python: python 3.6.5 on Ubuntu 16.04.4 LTS sentry version: raven==6.5.0 ec2-region: us-east-1b

[ikasymov]

How did you fix it?

[ghost]

Had the same issue and error on other projects. Solved by setting my system time to correct. The reason is that TLS handshake fails due to the invalid certificate (because of wrong system time). Hope it helps others :)

I suggest closing the the issue if its the case.