ConnectionClosedError：在我们从端点 URL 收到有效响应之前连接已关闭：

Question

所以我试图找出 Sagemaker 并且可以获得一个用于启动和运行张量流模型的端点。奇怪的是，当我向它发送小图像时，高达 220x220 (40kb)，它运行得很好！但是，当我尝试更大的尺寸（例如 225x225）时，出现连接关闭错误。

我在不同的网络和计算机上尝试过并得到相同的错误。另外，我不认为我接近 sagemaker 请求的 5MB 限制，所以我必须承认我被这个问题难住了。有人碰巧知道这可能是什么原因吗？谢谢你的帮助。我通过 boto 调用我的模型如下：

config = Config(connect_timeout=999999, read_timeout=9999999)
client = boto3.client("runtime.sagemaker", config=config)
data = {"instances": [{"x":x, "x2":x2}]}
response = client.invoke_endpoint(EndpointName='dcscn', 
                                Body=json.dumps(data),
                                ContentType="application/json")

response_body = response['Body']

我得到的错误是：

Traceback (most recent call last):
  File "/Users/bhhj/anaconda/lib/python3.6/site-packages/urllib3/connectionpool.py", line 600, in urlopen
    chunked=chunked)
  File "/Users/bhhj/anaconda/lib/python3.6/site-packages/urllib3/connectionpool.py", line 354, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File "/Users/bhhj/anaconda/lib/python3.6/http/client.py", line 1239, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/awsrequest.py", line 125, in _send_request
    method, url, body, headers, *args, **kwargs)
  File "/Users/bhhj/anaconda/lib/python3.6/http/client.py", line 1285, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/Users/bhhj/anaconda/lib/python3.6/http/client.py", line 1234, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/awsrequest.py", line 152, in _send_output
    self.send(msg)
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/awsrequest.py", line 236, in send
    return super(AWSConnection, self).send(str)
  File "/Users/bhhj/anaconda/lib/python3.6/http/client.py", line 986, in send
    self.sock.sendall(data)
  File "/Users/bhhj/anaconda/lib/python3.6/ssl.py", line 975, in sendall
    v = self.send(byte_view[count:])
  File "/Users/bhhj/anaconda/lib/python3.6/ssl.py", line 944, in send
    return self._sslobj.write(data)
  File "/Users/bhhj/anaconda/lib/python3.6/ssl.py", line 642, in write
    return self._sslobj.write(data)
BrokenPipeError: [Errno 32] Broken pipe

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/httpsession.py", line 258, in send
    decode_content=False,
  File "/Users/bhhj/anaconda/lib/python3.6/site-packages/urllib3/connectionpool.py", line 638, in urlopen
    _stacktrace=sys.exc_info()[2])
  File "/Users/bhhj/anaconda/lib/python3.6/site-packages/urllib3/util/retry.py", line 343, in increment
    raise six.reraise(type(error), error, _stacktrace)
  File "/Users/bhhj/anaconda/lib/python3.6/site-packages/urllib3/packages/six.py", line 685, in reraise
    raise value.with_traceback(tb)
  File "/Users/bhhj/anaconda/lib/python3.6/site-packages/urllib3/connectionpool.py", line 600, in urlopen
    chunked=chunked)
  File "/Users/bhhj/anaconda/lib/python3.6/site-packages/urllib3/connectionpool.py", line 354, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File "/Users/bhhj/anaconda/lib/python3.6/http/client.py", line 1239, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/awsrequest.py", line 125, in _send_request
    method, url, body, headers, *args, **kwargs)
  File "/Users/bhhj/anaconda/lib/python3.6/http/client.py", line 1285, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/Users/bhhj/anaconda/lib/python3.6/http/client.py", line 1234, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/awsrequest.py", line 152, in _send_output
    self.send(msg)
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/awsrequest.py", line 236, in send
    return super(AWSConnection, self).send(str)
  File "/Users/bhhj/anaconda/lib/python3.6/http/client.py", line 986, in send
    self.sock.sendall(data)
  File "/Users/bhhj/anaconda/lib/python3.6/ssl.py", line 975, in sendall
    v = self.send(byte_view[count:])
  File "/Users/bhhj/anaconda/lib/python3.6/ssl.py", line 944, in send
    return self._sslobj.write(data)
  File "/Users/bhhj/anaconda/lib/python3.6/ssl.py", line 642, in write
    return self._sslobj.write(data)
urllib3.exceptions.ProtocolError: ('Connection aborted.', BrokenPipeError(32, 'Broken pipe'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "ping_endpoint.py", line 100, in <module>
    ContentType="application/json")
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/client.py", line 357, in _api_call
    return self._make_api_call(operation_name, kwargs)
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/client.py", line 648, in _make_api_call
    operation_model, request_dict, request_context)
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/client.py", line 667, in _make_request
    return self._endpoint.make_request(operation_model, request_dict)
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/endpoint.py", line 102, in make_request
    return self._send_request(request_dict, operation_model)
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/endpoint.py", line 137, in _send_request
    success_response, exception):
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/endpoint.py", line 231, in _needs_retry
    caught_exception=caught_exception, request_dict=request_dict)
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/hooks.py", line 356, in emit
    return self._emitter.emit(aliased_event_name, **kwargs)
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/hooks.py", line 228, in emit
    return self._emit(event_name, kwargs)
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/hooks.py", line 211, in _emit
    response = handler(**kwargs)
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/retryhandler.py", line 183, in __call__
    if self._checker(attempts, response, caught_exception):
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/retryhandler.py", line 251, in __call__
    caught_exception)
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/retryhandler.py", line 277, in _should_retry
    return self._checker(attempt_number, response, caught_exception)
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/retryhandler.py", line 317, in __call__
    caught_exception)
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/retryhandler.py", line 223, in __call__
    attempt_number, caught_exception)
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/retryhandler.py", line 359, in _check_caught_exception
    raise caught_exception
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/endpoint.py", line 200, in _do_get_response
    http_response = self._send(request)
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/endpoint.py", line 244, in _send
    return self.http_session.send(request)
  File "/Users/bhhj/.local/lib/python3.6/site-packages/botocore/httpsession.py", line 289, in send
    endpoint_url=request.url
botocore.exceptions.ConnectionClosedError: Connection was closed before we received a valid response from endpoint URL: 

Answer 1

这可能是网络错误。如果您已连接到 VPN，请断开连接后尝试尝试使用更好的互联网连接（我的情况是关闭 VPN 有效）