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RuntimeError: Cannot add child handler (on Google Cloud Shell/GKE)
See original GitHub issueWhat happened:
Running the basic quickstart example with dask-kubernetes==2021.10.0, I get the following error (full trace below the fold).
RuntimeError: Cannot add child handler, the child watcher does not have a loop attached
What you expected to happen: Start a basic cluster.
Minimal Complete Verifiable Example:
pip install dask-kubernetes==2021.10.0
from dask_kubernetes import KubeCluster
# yaml copied from quickstart
cluster = KubeCluster("worker-spec.yaml")
cluster.scale(1)
Anything else we need to know?:
It works on version 2021.3.1.
Environment:
- Dask version: 2021.10.0
- Python version: 3.7.3
- Operating System: Debian buster (running on Google Cloud Shell)
- Install method (conda, pip, source): pip
Issue Analytics
- State:
- Created 2 years ago
- Comments:11 (7 by maintainers)
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Just ran the same code on
python3.9.9(on Google Cloud Shell) and it seems to work.Yes this is a known issue in Python 3.7. We are dropping Python 3.7 support soon (dask/community#213) so please upgrade to a more recent version.