JupyterHub: Error messages, restart cycle, and server unavailability

[Yululily]

Dear Support Team,

I'm so sorry to bother you again, but I'm having another issue with JupyterHub. Today, while using JupyterHub, I kept encountering the error shown in the attached screenshot.

When I clicked "Restart", it said it was "starting up".

After a while, this message appeared.

Refreshing the page then prompted me to "Relaunch".

Then, a red progress bar appeared.

Finally, I had to close the page, go to the console, and press the "Launch JupyterHub" button.

After waiting for it to prepare.

I had to click "Launch" in the image to access JupyterHub normally.

I thought this would fix the problem, but then the "Server unavailable or unreachable" pop-up appeared again.

This cycle has been going on for 4 hours now. Could you please help me?

Thank you so much!

[Nurul_Intel]

Hi Yululily,

Thank you for reaching out to us.

Regarding this issue, we would suggest you to:

1. Access the Intel Tiber Developer Cloud page using a different browser or in an incognito window.

2. Clear the caches and cookies of the browser.

If the issue persists, kindly provide us with your Cloud Account ID and the URL to your Jupyter Hub. Additionally, please let us know the country that you are currently connecting from.

Regards,

Nurul

[Yululily]

Dear Nurul_Intel,

Thank you for your reply. I appreciate your help.

I downloaded Google Chrome from the official website.
The browser is clean, without any extensions, and I'm still experiencing the same issue.

I've tried using a different computer, clearing cookies, clearing caches, using incognito mode, and even using Firefox.
The problem persists. I'm not sure what to do.

I am currently in Taiwan, using both my mobile data and home internet.
This issue only started recently and has been bothering me for a while. As a student, I can't afford a high-end VRAM device for training. I was hoping to learn about TTS applications through your service, as my teacher mentioned it.

However, I'm constantly interrupted by this pop-up window while I'm learning to deploy projects. This is very frustrating.

My Cloud Account ID is: 309535051537
The link to the Spawn page that frequently gets stuck is: https://jupyter-batch-us-region-1.cloud.intel.com/hub/spawn-pending/u7a3141da576395ad98626581ba2c1c9

Any help would be greatly appreciated.

[Nurul_Intel]

Hi Yululily,

Thank you for providing the details. We are checking with the development team regarding this issue and will update you as soon as possible. We apologize for the inconvenience caused. 

Regards,

Nurul

[Nurul_Intel]

Hi Yululily,

Thank you for your patience. Upon checking, our system detected that your JupyterHub performed some malicious activities in the system, so the developer disabled your account due to some malicious activities in the system.

Please note that Intel Developer Cloud is offering this compute cluster service for learning/educational purposes only. 

Regards,

Nurul

[Jakub_H]

Hi,

I would like to add that I was having the same problems today. So it is not single-user specific, but applies to many.

Every time I launched the JupyterLab, it crashed after about 30 minutes. I closed the tab, and launched a new JupyterLab, which again crashed after a while.

I think that the internal slurm job walltime is 4 hours, so this crashing is probably not the job timing out, but some other issue.

[Nurul_Intel]

Hi Jakub_H,

Thank you for reaching out.

Could you please open a new thread so that we can provide better support for you? Thank you.


Regards,
Nurul

[Jakub_H]

Sure, started a new thread, see https://community.intel.com/t5/Intel-Developer-Cloud/devcloud-JupyterLab-diconnects/td-p/1626420

[Nurul_Intel]

Hi Yululily,

Thank you for your question. If you need any additional information from Intel, please submit a new question as this thread is no longer being monitored.

Regards,

Nurul