This section contains general troubleshooting tips for your JupyterHub deployment. For information on debugging Kubernetes, see Debugging Kubernetes.

FAQ - General

I thought I had deleted my cloud resources, but they still show up. Why?

You probably deleted the specific nodes, but not the kubernetes cluster that was controlling those nodes. Kubernetes is designed to make sure that a specific set of resources is available at all times. This means that if you only delete the nodes, but not the kubernetes instance, then it will detect the loss of computers and will create two new nodes to compensate.

How does billing for this work?

JupyterHub isn’t handling any of the billing for your usage. That’s done through whatever cloud service you’re using. For considerations about managing cost with JupyterHub, see Estimating costs.

Common error messages

Google Cloud


In Google Cloud, you can see the logs using the Cloud Console GUI. See the logging section under the hamburger menu.

  1. Could not find default credentials. See for more information.

    Execute gcloud auth application-default login and follow the prompts. The provided link in the error message has additional options for advanced use cases.

  2. ERROR: (gcloud.container.clusters.create) ResponseError: code=503, message=Project staeiou-5f880 is not fully initialized with the default service accounts. Please try again later.

    Go to and click ‘enable’ and follow the prompts.