Top bar is still blank

[jtlz2]

Hi -

I have pursued the installation instructions:

sudo -H pip install -U nbresuse==0.3.3
sudo jupyter labextension install jupyterlab-topbar-extension jupyterlab-system-monitor

followed by a browser refresh.

This still results in a blank top bar (except for grey bars either side).

Do I need to do a client-side reset application state?

Or do I need to do a server-side

sudo jupyter lab clean && sudo jupyter lab build

?

It would be great if you could help me get this over the line.

Many thanks in advance for all help!

PS Since I have no idea whether this is related to #28 or not I have opened a new ticket.

PPS I am running jupyterlab inside a docker container launched by jupyterhub on a kubernetes cluster.

PPPS Your excellent topbar extension does work - I can see the logout button, the light/dark theme switcher and the waving hand.

[jtpio]

Thanks @jtlz2.

Which version of JupyterLab is it?

Also, does jupyter labextension list show any error?

[pedroprates]

Same issue here. jupyter labextension list doesn't show any errors, enabled OK.

[SvenSchiffner]

The issue is very general. So, I will leave a comment here instead of open a new issue.

I run Jupyter on Windows10 in a conda environment. Here are the important packages from conda list:

# Name                    Version                   Build  Channel
jupyter_core              4.7.0            py38haa244fe_0    conda-forge
jupyterlab                2.2.9                      py_0    conda-forge
jupyterlab_server         1.2.0                      py_0    conda-forge
nodejs                    15.3.0               h57928b3_0    conda-forge
notebook                  6.1.5            py38haa244fe_0    conda-forge
psutil                    5.7.3            py38hab1e662_0    conda-forge
python                    3.8.6           h60c2a47_0_cpython    conda-forge

and my ~/.jupyter/jupyter_notebook_config.py

c = get_config()

# memory
c.NotebookApp.ResourceUseDisplay.mem_limit = 17179869184

# cpu
c.NotebookApp.ResourceUseDisplay.track_cpu_percent = True
c.NotebookApp.ResourceUseDisplay.cpu_limit = 12

The advanced jupyterlab config is the system default.

In jupyter notebook I can see the memory consumption but not in jupyerlab. I also installed the theme-toggle and this works. So the topbar should also work. If I start jupyter lab with the debug flag I also can't see anything related with the system monitor.

Did I forget to configure something?

[dclong]

I'm seeing a similar issue. I'm using JupyterLab 2.2.9. Below is the configuration object that printed out which shows that ResourceUseDisplay is indeed configured. But nothing is shown on the topbar.

{'NotebookApp': {'ResourceUseDisplay': {'mem_limit': 6088820000, 'track_cpu_percent': True, 'cpu_limit': 4}}}

[dclong]

BTW, I configured JupyterLab in /etc/jupyter instead of ~/.jupyter. Does jupyterlab-system-monitor support this?

[jtpio]

It should follow the list of directories returned by the jupyter --paths command. For example:

$ jupyter --paths
config:
    /home/username/miniforge3/envs/jupyterlab-system-monitor/etc/jupyter
    /home/username/.jupyter
    /usr/local/etc/jupyter
    /etc/jupyter
data:
    /home/username/miniforge3/envs/jupyterlab-system-monitor/share/jupyter
    /home/username/.local/share/jupyter
    /usr/local/share/jupyter
    /usr/share/jupyter
runtime:
    /home/username/.local/share/jupyter/runtime

Also there has been a couple of changes on nbresuse recently which has been renamed to jupyter-resource-usage. Check the changelog for more details as the old /metrics endpoint has been deprecated and then removed, which could explain why the top bar appears to be blank: https://github.com/jupyter-server/jupyter-resource-usage/blob/master/CHANGELOG.md

We can add more info about these recent changes to the readme in this repo too, although it sounds like the best would be start moving the jupyterlab-system-monitor extension over to jupyter-resource-usage (#51).

[jabbera]

I'm having this issue as well. Is there supposed to be an entry in the topbar config for this?

{
// Top Bar Extension
// jupyterlab-topbar-extension:plugin
// Top Bar Extension
// **********************************

// Items Order
// Ordered list of the Top Bar items
"order": [
    "spacer",
    "memory"
]

}

[jtpio]

Closing as jupyterlab-system-monitor has now been integrated in jupyter-resource-usage: jupyter-server/jupyter-resource-usage#191

Feel free to open a new issue on the jupyter-resource-usage repo if needed: https://github.com/jupyter-server/jupyter-resource-usage

Thanks!