In this page:

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• • Your IDAS session will end and your code will be terminated in one of these situations:
    • You manually stop your IDAS session by using the steps here - https://wikiuiowa.uiowaatlassian.edunet/wiki/display/hpcdocs/Using+IDAS#UsingIDAS-ShuttingdownanIDASinstance, or: 
    • Your IDAS session has been idle for 18 hours with no activities. IDAS was originally designed for interactive work, so “activities” include logging into IDAS, clicking on the IDAS tab, and interacting with the IDAS interface in some way, such as uploading, downloading, and managing your files. Having code running doesn’t count as an interactive activity. If a user hasn’t logged into IDAS for 18 hours, their session will be automatically stopped to release resources for other users.

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• Solution:
  • Do nothing to the notebook, since new edits will not be saved.
  • Go back to the page that shows your IDAS home directory (aka the Jupyter Hub tree page). Refresh the page by hitting the F5 key. If you see the UI login page, log back in with your HawkID and password.
    • If you don't have the Jupyter Hub tree page open, log in to your research or class instance at https://notebooks.hpcidas.uiowa.edu/. Then click the blue button "My Server" to access the Jupyter Hub tree page.
  • Go back to the notebook that you have been working on.
  • Save the notebook. The error button will disappear.
  • Please save your notebook regularly while you are working on it.

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• Solution:
  • This issue can happen when your IDAS home drive is full. As a first step, please follow the steps here to check your home drive usage and remove any files you no longer need.
  • Once your home drive is no longer full, log in to IDAS again.
  • If that doesn't fix the issue, please contact us at research-computing@uiowa.edu with a description of the issue.

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• Solution:
  • As a first step, please follow the steps here to restart your server.
  • If that doesn't fix the issue, please contact us at research-computing@uiowa.edu with a description of the issue.

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• Solution:
  1. Click OK. The dialogue will disappear
  2. Use the steps here to shut down your server
  3. Log into IDAS again
• When you need to shut down RStudio, please do not click the power button in the top right corner of RStudio or use the Quit Session option in RStudio. Please use the steps here to shut down your server.

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3. From the Jupyter Hub directory page, click Upload in the top right corner of the page, then select a file from your computer to upload to IDAS:

4. After the file has been uploaded using the Jupyter interface, it will be available in the RStudio interface as well.

Contact

If you have any questions or comments, please contact research-computing@uiowa.edu.

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