DNS Timeout?
void4 opened this issue · comments
Issue Summary
Using the latest version (6.9.5) of sendgrid-python, sometimes, sending an email doesn't work, apparently due to a DNS lookup timeout.
Steps to Reproduce
Install 6.9.5
Code Snippet
def send():
to_email = To("test@test.com")
subject = "test"
content = Content("text/plain", "test")
mail = Mail(from_email, to_email, subject, content)
response = sg.client.mail.send.post(request_body=mail.get())Exception/Log
Traceback (most recent call last):
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/eventlet/support/greendns.py", line 426,
in resolve
return _proxy.query(name, rdtype, raise_on_no_answer=raises,
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/eventlet/support/greendns.py", line 382,
in query
return end()
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/eventlet/support/greendns.py", line 361,
in end
raise result[1]
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/eventlet/support/greendns.py", line 342,
in step
a = fun(*args, **kwargs)
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/dns/resolver.py", line 1222, in query
return self.resolve(qname, rdtype, rdclass, tcp, source,
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/dns/resolver.py", line 1176, in resolve
timeout = self._compute_timeout(start, lifetime)
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/dns/resolver.py", line 997, in _compute_t
imeout
raise Timeout(timeout=duration)
dns.exception.Timeout: The DNS operation timed out after 5.103812217712402 seconds
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/root/.pyenv/versions/3.8.2/lib/python3.8/urllib/request.py", line 1319, in do_open
h.request(req.get_method(), req.selector, req.data, headers,
File "/root/.pyenv/versions/3.8.2/lib/python3.8/http/client.py", line 1230, in request
self._send_request(method, url, body, headers, encode_chunked)
File "/root/.pyenv/versions/3.8.2/lib/python3.8/http/client.py", line 1276, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "/root/.pyenv/versions/3.8.2/lib/python3.8/http/client.py", line 1225, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/root/.pyenv/versions/3.8.2/lib/python3.8/http/client.py", line 1004, in _send_output
self.send(msg)
File "/root/.pyenv/versions/3.8.2/lib/python3.8/http/client.py", line 944, in send
self.connect()
File "/root/.pyenv/versions/3.8.2/lib/python3.8/http/client.py", line 1392, in connect
super().connect()
File "/root/.pyenv/versions/3.8.2/lib/python3.8/http/client.py", line 915, in connect
self.sock = self._create_connection(
File "/root/.pyenv/versions/3.8.2/lib/python3.8/socket.py", line 787, in create_connection
for res in getaddrinfo(host, port, 0, SOCK_STREAM):
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/eventlet/support/greendns.py", line 519,
in getaddrinfo
qname, addrs = _getaddrinfo_lookup(host, family, flags)
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/eventlet/support/greendns.py", line 492,
in _getaddrinfo_lookup [66/1821]
answer = resolve(host, qfamily, False, use_network=use_network)
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/eventlet/support/greendns.py", line 434,
in resolve
raise EAI_EAGAIN_ERROR
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/eventlet/support/greendns.py", line 481,
in _getaddrinfo_lookup
answer = resolve(host, qfamily, False, use_network=use_network)
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/eventlet/support/greendns.py", line 434,
in resolve
raise EAI_EAGAIN_ERROR
File "/root/.pyenv/versions/3.8.2/lib/python3.8/urllib/request.py", line 1319, in do_open
h.request(req.get_method(), req.selector, req.data, headers,
File "/root/.pyenv/versions/3.8.2/lib/python3.8/http/client.py", line 1230, in request
self._send_request(method, url, body, headers, encode_chunked)
File "/root/.pyenv/versions/3.8.2/lib/python3.8/http/client.py", line 1276, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "/root/.pyenv/versions/3.8.2/lib/python3.8/http/client.py", line 1225, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/root/.pyenv/versions/3.8.2/lib/python3.8/http/client.py", line 1004, in _send_output
self.send(msg)
File "/root/.pyenv/versions/3.8.2/lib/python3.8/http/client.py", line 944, in send
self.connect()
File "/root/.pyenv/versions/3.8.2/lib/python3.8/http/client.py", line 1392, in connect
self.connect() [44/1821]
File "/root/.pyenv/versions/3.8.2/lib/python3.8/http/client.py", line 1392, in connect
super().connect()
File "/root/.pyenv/versions/3.8.2/lib/python3.8/http/client.py", line 915, in connect
self.sock = self._create_connection(
File "/root/.pyenv/versions/3.8.2/lib/python3.8/socket.py", line 787, in create_connection
for res in getaddrinfo(host, port, 0, SOCK_STREAM):
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/eventlet/support/greendns.py", line 519,
in getaddrinfo
qname, addrs = _getaddrinfo_lookup(host, family, flags)
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/eventlet/support/greendns.py", line 492,
in _getaddrinfo_lookup
raise err
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/eventlet/support/greendns.py", line 481,
in _getaddrinfo_lookup
answer = resolve(host, qfamily, False, use_network=use_network)
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/eventlet/support/greendns.py", line 434,
in resolve
raise EAI_EAGAIN_ERROR
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/eventlet/support/greendns.py", line 481,
in _getaddrinfo_lookup
answer = resolve(host, qfamily, False, use_network=use_network)
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/eventlet/support/greendns.py", line 434,
in resolve
raise EAI_EAGAIN_ERROR [26/1821]
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/eventlet/support/greendns.py", line 481,
in _getaddrinfo_lookup
answer = resolve(host, qfamily, False, use_network=use_network)
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/eventlet/support/greendns.py", line 434,
in resolve
raise EAI_EAGAIN_ERROR
socket.gaierror: [Errno -3] Lookup timed out
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/flask/app.py", line 2070, in wsgi_app
response = self.full_dispatch_request()
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/flask/app.py", line 1515, in full_dispatc
h_request
rv = self.handle_user_exception(e)
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/flask/app.py", line 1513, in full_dispatc
h_request
rv = self.dispatch_request()
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/flask/app.py", line 1499, in dispatch_req
uest
return self.ensure_sync(self.view_functions[rule.endpoint])(**req.view_args)
File "/home/icebergcharts/main.py", line 1281, in r_passwordresetPOST
reset_email(user["email"], pwreset["link"])
File "/home/icebergcharts/main.py", line 1294, in reset_email
response = sg.client.mail.send.post(request_body=mail.get())
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/python_http_client/client.py", line 277, in http_request
self._make_request(opener, request, timeout=timeout)
File "/root/.pyenv/versions/3.8.2/lib/python3.8/site-packages/python_http_client/client.py", line 176, in _make_request
return opener.open(request, timeout=timeout)
File "/root/.pyenv/versions/3.8.2/lib/python3.8/urllib/request.py", line 525, in open
response = self._open(req, data)
File "/root/.pyenv/versions/3.8.2/lib/python3.8/urllib/request.py", line 542, in _open
result = self._call_chain(self.handle_open, protocol, protocol +
File "/root/.pyenv/versions/3.8.2/lib/python3.8/urllib/request.py", line 502, in _call_chain
result = func(*args)
File "/root/.pyenv/versions/3.8.2/lib/python3.8/urllib/request.py", line 1362, in https_open
return self.do_open(http.client.HTTPSConnection, req,
File "/root/.pyenv/versions/3.8.2/lib/python3.8/urllib/request.py", line 1322, in do_open
raise URLError(err)
urllib.error.URLError: <urlopen error [Errno -3] Lookup timed out>
Technical details:
- sendgrid-python version: 6.9.5
- python version: 3.8.2
Doesn't look like an issue with the helper. In order to properly help with this request, please file a support ticket.