Peter Parente

@harschware Can you try running the following and paste the output? ``` docker run --name sparkall --user root -e NB_USER=centos \ -e NB_GROUP=centos -e NB_UID=$(id -u centos) -e NB_GID=$(id -g...

On more question, can you paste the permissions of the `work` folder on the host that you are mounting into the container as `/home/centos/work`?

@aie0 the no space left on device error is usually due to the Docker host hard drive being full. You can check by running df -h.

Spending the day reviewing and closing old issues, it's possible the original issue filed here could be related to https://github.com/jupyter/docker-stacks/issues/542#issuecomment-379515332.

We prefer adding [recipes in the documentation](https://jupyter-docker-stacks.readthedocs.io/en/latest/using/recipes.html) over installing new packages in the images to avoid forever increasing the size of the docker images and maintenance burden of this repository....

The jupyter/kernel_gateway has a preheated kernel pool for its notebook-as-an-API mode (https://jupyter-kernel-gateway.readthedocs.io/en/latest/http-mode.html). Maybe something can be ported to jupyter_server from there? * https://github.com/jupyter/kernel_gateway/blob/master/kernel_gateway/services/kernels/pool.py * https://github.com/jupyter/kernel_gateway/blob/master/kernel_gateway/notebook_http/handlers.py#L34

@mathbunnyru Is your Docker ID the same as your GitHub ID? If so, I can invite you.

@mathbunnyru Invite sent.

@madhu-mallisseri Can you tell me more about your setup? Are you using the developer docker containers / images in this repo?

Confirmed with the gist. Checking to see if things are better on master. If not, it's quite possible we don't have the right code in place to support ipywidgets dynamically...