AWS EC2上带有uvicorn fastapi的uvicorn错误

Question

我有一个本地运行的服务器。当我在AWS EC2上运行它并在8000端口上从外部发送请求时，我得到以下错误：

$ uvicorn sql_app.main:app --host="0.0.0.0" --port=8000
INFO:     Started server process [9806]
INFO:     Waiting for application startup.
INFO:     Application startup complete.
INFO:     Uvicorn running on http://0.0.0.0:8000 (Press CTRL+C to quit)
WARNING:  Invalid HTTP request received.
Traceback (most recent call last):
  File "/home/ec2-user/.local/lib/python3.7/site-packages/uvicorn/protocols/http/h11_impl.py", line 170, in handle_events
    event = self.conn.next_event()
  File "/home/ec2-user/.local/lib/python3.7/site-packages/h11/_connection.py", line 443, in next_event
    exc._reraise_as_remote_protocol_error()
  File "/home/ec2-user/.local/lib/python3.7/site-packages/h11/_util.py", line 76, in _reraise_as_remote_protocol_error
    raise self
  File "/home/ec2-user/.local/lib/python3.7/site-packages/h11/_connection.py", line 425, in next_event
    event = self._extract_next_receive_event()
  File "/home/ec2-user/.local/lib/python3.7/site-packages/h11/_connection.py", line 367, in _extract_next_receive_event
    event = self._reader(self._receive_buffer)
  File "/home/ec2-user/.local/lib/python3.7/site-packages/h11/_readers.py", line 73, in maybe_read_from_IDLE_client
    request_line_re, lines[0], "illegal request line: {!r}", lines[0]
  File "/home/ec2-user/.local/lib/python3.7/site-packages/h11/_util.py", line 88, in validate
    raise LocalProtocolError(msg)
h11._util.RemoteProtocolError: illegal request line: bytearray(b'\x16\x03\x01\x02\x00\x01\x00\x01\xfc\x03\x03\x91\xa5\xe2Y\xf0\xa1\xdd\x1d+\x08\x1c\r\x15X\x1d@\x1e/\xb1N\x00\xb5\xe5\xec\xf3F\x1fm\x03\xa1{> \xa80\xb4\x14\x1aUs\xaa\xcd\xc3<s\xcd\xd1\x17\xdf3\x0e\xdbh\xd1c\x88}\x8c\x1f\xa5\x15\x9aa\x14I\x00 ')
WARNING:  Invalid HTTP request received.
Traceback (most recent call last):
  File "/home/ec2-user/.local/lib/python3.7/site-packages/uvicorn/protocols/http/h11_impl.py", line 170, in handle_events
    event = self.conn.next_event()
  File "/home/ec2-user/.local/lib/python3.7/site-packages/h11/_connection.py", line 443, in next_event
    exc._reraise_as_remote_protocol_error()
  File "/home/ec2-user/.local/lib/python3.7/site-packages/h11/_util.py", line 76, in _reraise_as_remote_protocol_error
    raise self
  File "/home/ec2-user/.local/lib/python3.7/site-packages/h11/_connection.py", line 425, in next_event
    event = self._extract_next_receive_event()
  File "/home/ec2-user/.local/lib/python3.7/site-packages/h11/_connection.py", line 367, in _extract_next_receive_event
    event = self._reader(self._receive_buffer)
  File "/home/ec2-user/.local/lib/python3.7/site-packages/h11/_readers.py", line 68, in maybe_read_from_IDLE_client
    raise LocalProtocolError("illegal request line")
h11._util.RemoteProtocolError: illegal request line
WARNING:  Invalid HTTP request received.
Traceback (most recent call last):
  File "/home/ec2-user/.local/lib/python3.7/site-packages/uvicorn/protocols/http/h11_impl.py", line 170, in handle_events
    event = self.conn.next_event()
  File "/home/ec2-user/.local/lib/python3.7/site-packages/h11/_connection.py", line 443, in next_event
    exc._reraise_as_remote_protocol_error()
  File "/home/ec2-user/.local/lib/python3.7/site-packages/h11/_util.py", line 76, in _reraise_as_remote_protocol_error
    raise self
  File "/home/ec2-user/.local/lib/python3.7/site-packages/h11/_connection.py", line 425, in next_event
    event = self._extract_next_receive_event()
  File "/home/ec2-user/.local/lib/python3.7/site-packages/h11/_connection.py", line 367, in _extract_next_receive_event
    event = self._reader(self._receive_buffer)
  File "/home/ec2-user/.local/lib/python3.7/site-packages/h11/_readers.py", line 68, in maybe_read_from_IDLE_client
    raise LocalProtocolError("illegal request line")
h11._util.RemoteProtocolError: illegal request line
WARNING:  Invalid HTTP request received.

如果您能告诉我如何在端口80上执行此操作，那将非常好。

Answer 1

尝试将默认超时更改为0。

启动uvicorn时使用此标志。

--timeout-keep-alive 0 

Answer 2

我也有同样的问题，并通过添加HTTPS支持来解决它。我配置NGINX与LetsEncrypt证书。确保所使用的端口在安全组设置中处于打开状态。

Answer 3

我收到了同样的神秘警告：收到了无效的HTTP请求 错误，堆栈跟踪无效。我尝试了所有推荐的环境变量调整，但都没有成功（请参见FastAPI问题680，uvicorn问题441）。

我的问题是，当我调用我的FastAPI微服务时，我使用的是https，而我的微服务没有HTTPS支持。我将url从https更改为超文本传输协议，它开始按预期工作。

请注意，如果您的服务需要HTTPS支持，您可以按照Ilgizar Murzakov的建议添加HTTPS支持。