Getting error `urllib3.exceptions.SSLError: [Errno 2] No such file or directory` running example script
See original GitHub issueScript
from dask_kubernetes import KubeCluster
cluster = KubeCluster.from_yaml('worker-spec.yml')
cluster.scale_up(10) # specify number of nodes explicitly
cluster.adapt(minimum=1, maximum=100)
Error
2018-12-12 05:02:58,458 WARNING Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(FileNotFoundError(2, 'No such file or directory'))': /api/v1/namespaces/default/pods?labelSelector=foo%3Dbar%2Cdask.org%2Fcluster-name%3Ddask-tsuberim-36b1060e-b%2Cuser%3Dtsuberim%2Capp%3Ddask%2Ccomponent%3Ddask-worker
2018-12-12 05:02:58,458 WARNING Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(FileNotFoundError(2, 'No such file or directory'))': /api/v1/namespaces/default/pods?labelSelector=foo%3Dbar%2Cdask.org%2Fcluster-name%3Ddask-tsuberim-36b1060e-b%2Cuser%3Dtsuberim%2Capp%3Ddask%2Ccomponent%3Ddask-worker
2018-12-12 05:02:58,634 WARNING Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(FileNotFoundError(2, 'No such file or directory'))': /api/v1/namespaces/default/pods?labelSelector=foo%3Dbar%2Cdask.org%2Fcluster-name%3Ddask-tsuberim-36b1060e-b%2Cuser%3Dtsuberim%2Capp%3Ddask%2Ccomponent%3Ddask-worker
2018-12-12 05:02:58,634 WARNING Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(FileNotFoundError(2, 'No such file or directory'))': /api/v1/namespaces/default/pods?labelSelector=foo%3Dbar%2Cdask.org%2Fcluster-name%3Ddask-tsuberim-36b1060e-b%2Cuser%3Dtsuberim%2Capp%3Ddask%2Ccomponent%3Ddask-worker
2018-12-12 05:02:58,810 WARNING Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(FileNotFoundError(2, 'No such file or directory'))': /api/v1/namespaces/default/pods?labelSelector=foo%3Dbar%2Cdask.org%2Fcluster-name%3Ddask-tsuberim-36b1060e-b%2Cuser%3Dtsuberim%2Capp%3Ddask%2Ccomponent%3Ddask-worker
2018-12-12 05:02:58,810 WARNING Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(FileNotFoundError(2, 'No such file or directory'))': /api/v1/namespaces/default/pods?labelSelector=foo%3Dbar%2Cdask.org%2Fcluster-name%3Ddask-tsuberim-36b1060e-b%2Cuser%3Dtsuberim%2Capp%3Ddask%2Ccomponent%3Ddask-worker
Traceback (most recent call last):
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/site-packages/urllib3/util/ssl_.py", line 321, in ssl_wrap_socket
context.load_verify_locations(ca_certs, ca_cert_dir)
FileNotFoundError: [Errno 2] No such file or directory
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/site-packages/urllib3/connectionpool.py", line 600, in urlopen
chunked=chunked)
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/site-packages/urllib3/connectionpool.py", line 343, in _make_request
self._validate_conn(conn)
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/site-packages/urllib3/connectionpool.py", line 839, in _validate_conn
conn.connect()
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/site-packages/urllib3/connection.py", line 344, in connect
ssl_context=context)
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/site-packages/urllib3/util/ssl_.py", line 323, in ssl_wrap_socket
raise SSLError(e)
urllib3.exceptions.SSLError: [Errno 2] No such file or directory
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/weakref.py", line 624, in _exitfunc
f()
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/weakref.py", line 548, in __call__
return info.func(*info.args, **(info.kwargs or {}))
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/site-packages/dask_kubernetes/core.py", line 501, in _cleanup_pods
pods = api.list_namespaced_pod(namespace, label_selector=format_labels(labels))
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/site-packages/kubernetes/client/apis/core_v1_api.py", line 12514, in list_namespaced_pod
(data) = self.list_namespaced_pod_with_http_info(namespace, **kwargs)
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/site-packages/kubernetes/client/apis/core_v1_api.py", line 12617, in list_namespaced_pod_with_http_info
collection_formats=collection_formats)
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/site-packages/kubernetes/client/api_client.py", line 321, in call_api
_return_http_data_only, collection_formats, _preload_content, _request_timeout)
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/site-packages/kubernetes/client/api_client.py", line 155, in __call_api
_request_timeout=_request_timeout)
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/site-packages/kubernetes/client/api_client.py", line 342, in request
headers=headers)
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/site-packages/kubernetes/client/rest.py", line 231, in GET
query_params=query_params)
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/site-packages/kubernetes/client/rest.py", line 205, in request
headers=headers)
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/site-packages/urllib3/request.py", line 68, in request
**urlopen_kw)
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/site-packages/urllib3/request.py", line 89, in request_encode_url
return self.urlopen(method, url, **extra_kw)
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/site-packages/urllib3/poolmanager.py", line 323, in urlopen
response = conn.urlopen(method, u.request_uri, **kw)
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/site-packages/urllib3/connectionpool.py", line 667, in urlopen
**response_kw)
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/site-packages/urllib3/connectionpool.py", line 667, in urlopen
**response_kw)
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/site-packages/urllib3/connectionpool.py", line 667, in urlopen
**response_kw)
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/site-packages/urllib3/connectionpool.py", line 638, in urlopen
_stacktrace=sys.exc_info()[2])
File "/home/tsuberim/anaconda2/envs/py37/lib/python3.7/site-packages/urllib3/util/retry.py", line 398, in increment
raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='104.154.176.5', port=443): Max retries exceeded with url: /api/v1/namespaces/default/pods?labelSelector=foo%3Dbar%2Cdask.org%2Fcluster-name%3Ddask-tsuberim-36b1060e-b%2Cuser%3Dtsuberim%2Capp%3Ddask%2Ccomponent%3Ddask-worker (Caused by SSLError(FileNotFoundError(2, 'No such file or directory')))
Environment:
python: 3.7 os: Ubuntu 18.0.4
Issue Analytics
- State:
- Created 5 years ago
- Comments:8 (6 by maintainers)
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The library creates a scheduler locally to where you run the library and some workers remotely in the kubernetes cluster. But they need to be able to communicate with each other. The easiest way to do this is by having your session in the kubernetes cluster too. It’s common to use this in conjunction with zero to jupyterhub or a derivative like Pangeo.
We are keen to enhance it to make the scheduler remote too, which would resolve the issue. But aren’t there with it yet.
I’m going to close this in favour of #84.