connection-traceback.py

Traceback (most recent call last):
  File "/opt/homebrew/Caskroom/miniconda/base/envs/orion-dev-38/lib/python3.8/site-packages/h2/connection.py", line 
224, in process_input
    func, target_state = self._transitions[(self.state, input_)]
KeyError: (<ConnectionState.CLOSED: 3>, <ConnectionInputs.SEND_HEADERS: 0>)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File 
"/opt/homebrew/Caskroom/miniconda/base/envs/orion-dev-38/lib/python3.8/site-packages/httpcore/_async/http2.py", line 
108, in handle_async_request
    await self._send_request_headers(request=request, stream_id=stream_id)
  File 
"/opt/homebrew/Caskroom/miniconda/base/envs/orion-dev-38/lib/python3.8/site-packages/httpcore/_async/http2.py", line 
205, in _send_request_headers
    self._h2_state.send_headers(stream_id, headers, end_stream=end_stream)
  File "/opt/homebrew/Caskroom/miniconda/base/envs/orion-dev-38/lib/python3.8/site-packages/h2/connection.py", line 
766, in send_headers
    self.state_machine.process_input(ConnectionInputs.SEND_HEADERS)
  File "/opt/homebrew/Caskroom/miniconda/base/envs/orion-dev-38/lib/python3.8/site-packages/h2/connection.py", line 
228, in process_input
    raise ProtocolError(
h2.exceptions.ProtocolError: Invalid input ConnectionInputs.SEND_HEADERS in state ConnectionState.CLOSED

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File 
"/opt/homebrew/Caskroom/miniconda/base/envs/orion-dev-38/lib/python3.8/site-packages/httpx/_transports/default.py", 
line 60, in map_httpcore_exceptions
    yield
  File 
"/opt/homebrew/Caskroom/miniconda/base/envs/orion-dev-38/lib/python3.8/site-packages/httpx/_transports/default.py", 
line 353, in handle_async_request
    resp = await self._pool.handle_async_request(req)
  File 
"/opt/homebrew/Caskroom/miniconda/base/envs/orion-dev-38/lib/python3.8/site-packages/httpcore/_async/connection_pool.
py", line 253, in handle_async_request
    raise exc
  File 
"/opt/homebrew/Caskroom/miniconda/base/envs/orion-dev-38/lib/python3.8/site-packages/httpcore/_async/connection_pool.
py", line 237, in handle_async_request
    response = await connection.handle_async_request(request)
  File 
"/opt/homebrew/Caskroom/miniconda/base/envs/orion-dev-38/lib/python3.8/site-packages/httpcore/_async/connection.py", 
line 90, in handle_async_request
    return await self._connection.handle_async_request(request)
  File 
"/opt/homebrew/Caskroom/miniconda/base/envs/orion-dev-38/lib/python3.8/site-packages/httpcore/_async/http2.py", line 
144, in handle_async_request
    raise LocalProtocolError(exc)  # pragma: nocover
httpcore.LocalProtocolError: Invalid input ConnectionInputs.SEND_HEADERS in state ConnectionState.CLOSED

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/Users/mz/dev/prefect/src/prefect/utilities/services.py", line 46, in critical_service_loop
    await workload()
  File "/Users/mz/dev/prefect/src/prefect/agent.py", line 203, in check_for_cancelled_flow_runs
    cancelling_flow_runs = await self.client.read_flow_runs(
  File "/Users/mz/dev/prefect/src/prefect/client/orion.py", line 1497, in read_flow_runs
    response = await self._client.post(f"/flow_runs/filter", json=body)
  File "/opt/homebrew/Caskroom/miniconda/base/envs/orion-dev-38/lib/python3.8/site-packages/httpx/_client.py", line 
1842, in post
    return await self.request(
  File "/opt/homebrew/Caskroom/miniconda/base/envs/orion-dev-38/lib/python3.8/site-packages/httpx/_client.py", line 
1527, in request
    return await self.send(request, auth=auth, follow_redirects=follow_redirects)
  File "/Users/mz/dev/prefect/src/prefect/client/base.py", line 160, in send
    await super().send(*args, **kwargs)
  File "/opt/homebrew/Caskroom/miniconda/base/envs/orion-dev-38/lib/python3.8/site-packages/httpx/_client.py", line 
1614, in send
    response = await self._send_handling_auth(
  File "/opt/homebrew/Caskroom/miniconda/base/envs/orion-dev-38/lib/python3.8/site-packages/httpx/_client.py", line 
1642, in _send_handling_auth
    response = await self._send_handling_redirects(
  File "/opt/homebrew/Caskroom/miniconda/base/envs/orion-dev-38/lib/python3.8/site-packages/httpx/_client.py", line 
1679, in _send_handling_redirects
    response = await self._send_single_request(request)
  File "/opt/homebrew/Caskroom/miniconda/base/envs/orion-dev-38/lib/python3.8/site-packages/httpx/_client.py", line 
1716, in _send_single_request
    response = await transport.handle_async_request(request)
  File 
"/opt/homebrew/Caskroom/miniconda/base/envs/orion-dev-38/lib/python3.8/site-packages/httpx/_transports/default.py", 
line 353, in handle_async_request
    resp = await self._pool.handle_async_request(req)
  File "/opt/homebrew/Caskroom/miniconda/base/envs/orion-dev-38/lib/python3.8/contextlib.py", line 131, in __exit__
    self.gen.throw(type, value, traceback)
  File 
"/opt/homebrew/Caskroom/miniconda/base/envs/orion-dev-38/lib/python3.8/site-packages/httpx/_transports/default.py", 
line 77, in map_httpcore_exceptions
    raise mapped_exc(message) from exc
httpx.LocalProtocolError: Invalid input ConnectionInputs.SEND_HEADERS in state ConnectionState.CLOSED