crash when matrix notification times out

[jcristau]

https://mozilla.sentry.io/issues/4045049635/ shows a case where the call to taskcluster's notify service takes a while and gunicorn ends up killing us with SIGABRT and a [CRITICAL] WORKER TIMEOUT error message.

SystemExit: 1
  File "flask/app.py", line 2548, in __call__
    return self.wsgi_app(environ, start_response)
  File "flask/app.py", line 2525, in wsgi_app
    response = self.full_dispatch_request()
  File "flask/app.py", line 1820, in full_dispatch_request
    rv = self.dispatch_request()
  File "flask/app.py", line 1796, in dispatch_request
    return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
  File "connexion/decorators/decorator.py", line 68, in wrapper
    response = function(request)
  File "connexion/decorators/uri_parsing.py", line 149, in wrapper
    response = function(request)
  File "connexion/decorators/validation.py", line 196, in wrapper
    response = function(request)
  File "connexion/decorators/validation.py", line 399, in wrapper
    return function(request)
  File "connexion/decorators/response.py", line 112, in wrapper
    response = function(request)
  File "connexion/decorators/parameter.py", line 120, in wrapper
    return function(**kwargs)
  File "/usr/local/lib/python3.9/site-packages/shipit_api/admin/xpi.py", line 184, in phase_signoff
    notify_via_matrix("xpi", f"Phase {phase} of {release.name} signed off by {users_email}")
  File "/usr/local/lib/python3.9/site-packages/shipit_api/admin/api.py", line 51, in notify_via_matrix
    notify.matrix({"roomId": room_id, "body": f"{owners}: {message}"})
  File "taskcluster/generated/notify.py", line 101, in matrix
    return self._makeApiCall(self.funcinfo["matrix"], *args, **kwargs)
  File "taskcluster/client.py", line 269, in _makeApiCall
    response = self._makeHttpRequest(entry['method'], _route, payload)
  File "taskcluster/client.py", line 490, in _makeHttpRequest
    response = utils.makeSingleHttpRequest(method, url, payload, headers)
  File "taskcluster/utils.py", line 292, in makeSingleHttpRequest
    response = obj.request(method.upper(), url, data=payload, headers=headers, allow_redirects=False)
  File "requests/api.py", line 59, in request
    return session.request(method=method, url=url, **kwargs)
  File "requests/sessions.py", line 587, in request
    resp = self.send(prep, **send_kwargs)
  File "requests/sessions.py", line 701, in send
    r = adapter.send(request, **kwargs)
  File "requests/adapters.py", line 489, in send
    resp = conn.urlopen(
  File "urllib3/connectionpool.py", line 703, in urlopen
    httplib_response = self._make_request(
  File "urllib3/connectionpool.py", line 449, in _make_request
    six.raise_from(e, None)
  File "<string>", line 3, in raise_from
    # Permission is hereby granted, free of charge, to any person obtaining a copy
  File "urllib3/connectionpool.py", line 444, in _make_request
    httplib_response = conn.getresponse()
  File "http/client.py", line 1377, in getresponse
    response.begin()
  File "http/client.py", line 320, in begin
    version, status, reason = self._read_status()
  File "http/client.py", line 281, in _read_status
    line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1")
  File "socket.py", line 704, in readinto
    return self._sock.recv_into(b)
  File "ssl.py", line 1242, in recv_into
    return self.read(nbytes, buffer)
  File "ssl.py", line 1100, in read
    return self._sslobj.read(len, buffer)
  File "gunicorn/workers/base.py", line 203, in handle_abort
    sys.exit(1)

[jcristau]

https://mozilla.sentry.io/issues/3943638203/ is a similar issue when calling queue.listLatestArtifacts, and https://mozilla.sentry.io/issues/3869583111/ in queue.listTaskGroup.

[jcristau]

Possibly relevant:
https://docs.gunicorn.org/en/stable/settings.html#timeout
https://docs.gunicorn.org/en/stable/settings.html#worker-abort