Hi, I got the following error when fetching a bunch of images from a URL.
What could be the possible reason for this?
I am using prefect core.
Unexpected error: ConnectionError(MaxRetryError('None: Max retries exceeded with url: /graphql (Caused by None)',),)
Traceback (most recent call last):
File "/usr/local/lib/python3.6/site-packages/prefect/engine/runner.py", line 48, in inner
new_state = method(self, state, *args, **kwargs)
File "/usr/local/lib/python3.6/site-packages/prefect/engine/flow_runner.py", line 598, in get_flow_run_state
for t in final_tasks
File "/usr/local/lib/python3.6/site-packages/prefect/engine/executors/dask.py", line 446, in wait
return self.client.gather(futures)
File "/usr/local/lib/python3.6/site-packages/distributed/client.py", line 1991, in gather
asynchronous=asynchronous,
File "/usr/local/lib/python3.6/site-packages/distributed/client.py", line 834, in sync
self.loop, func, *args, callback_timeout=callback_timeout, **kwargs
File "/usr/local/lib/python3.6/site-packages/distributed/utils.py", line 339, in sync
raise exc.with_traceback(tb)
File "/usr/local/lib/python3.6/site-packages/distributed/utils.py", line 323, in f
result[0] = yield future
File "/usr/local/lib/python3.6/site-packages/tornado/gen.py", line 729, in run
value = future.result()
File "/usr/local/lib/python3.6/site-packages/distributed/client.py", line 1850, in _gather
raise exception.with_traceback(traceback)
File "/usr/local/lib/python3.6/site-packages/prefect/engine/executors/dask.py", line 65, in _maybe_run
return fn(*args, **kwargs)
File "/usr/local/lib/python3.6/site-packages/prefect/engine/flow_runner.py", line 720, in run_task
flow_result=flow_result,
File "/usr/local/lib/python3.6/site-packages/prefect/engine/cloud/task_runner.py", line 52, in
init
self.client = Client()
File "/usr/local/lib/python3.6/site-packages/prefect/client/client.py", line 124, in
init
tenant_info = self.graphql({"query": {"tenant": {"id"}}})
File "/usr/local/lib/python3.6/site-packages/prefect/client/client.py", line 281, in graphql
retry_on_api_error=retry_on_api_error,
File "/usr/local/lib/python3.6/site-packages/prefect/client/client.py", line 237, in post
retry_on_api_error=retry_on_api_error,
File "/usr/local/lib/python3.6/site-packages/prefect/client/client.py", line 401, in _request
session=session, method=method, url=url, params=params, headers=headers
File "/usr/local/lib/python3.6/site-packages/prefect/client/client.py", line 319, in _send_request
response =
session.post(url, headers=headers, json=params, timeout=30)
File "/usr/local/lib/python3.6/site-packages/requests/sessions.py", line 581, in post
return self.request('POST', url, data=data, json=json, **kwargs)
File "/usr/local/lib/python3.6/site-packages/requests/sessions.py", line 533, in request
resp = self.send(prep, **send_kwargs)
File "/usr/local/lib/python3.6/site-packages/requests/sessions.py", line 646, in send
r = adapter.send(request, **kwargs)
File "/usr/local/lib/python3.6/site-packages/requests/adapters.py", line 516, in send
raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: None: Max retries exceeded with url: /graphql (Caused by None)