NOTICE: FULL O2 Cluster Outage, January 3 - January 10th

O2 will be completely offline for a planned HMS IT data center relocation from Friday, Jan 3, 6:00 PM, through Friday, Jan 10

  • on Jan 3 (5:30-6:00 PM): O2 login access will be turned off.
  • on Jan 3 (6:00 PM): O2 systems will start being powered off.

This project will relocate existing services, consolidate servers, reduce power consumption, and decommission outdated hardware to improve efficiency, enhance resiliency, and lower costs.

Specifically:

  • The O2 Cluster will be completely offline, including O2 Portal.
  • All data on O2 will be inaccessible.
  • Any jobs still pending when the outage begins will need to be resubmitted after O2 is back online.
  • Websites on O2 will be completely offline, including all web content.

More details at: https://harvardmed.atlassian.net/l/cp/1BVpyGqm & https://it.hms.harvard.edu/news/upcoming-data-center-relocation

Open OnDemand FAQ

Owned by Gaby Rodriguez
Last updated: Jun 16, 2021
1 min read

What's the Restart Web Server option used for?

Located within the Help menu, the Restart Web Server option can be used to simply reload your own session. This option does not take any effect system-wide.

How to install kernels on Jupyter Notebooks?

For more information, please visit the following link - Using other programming languages / Jupyter kernels.

Do I need to be on the VPN if working from HMS?

No, you only need to be on the VPN when working from off-campus or any of the affiliate's hospitals.

Can I use any web browser with Open OnDemand?

We recommend using Chrome or Firefox. NOTE: Open OnDemand features might not work properly when using the Safari web browser.

Why is the RC Shiny app showing ".../app.sock: No such file or directory" in the log file?

The error is related to the httpuv package, which is a dependency for the shiny package. Please reinstall the httpuv package from GitHub. For example:

# If needed install devtools install.packages('devtools') # Install httpuv from GH devtools::install_github("rstudio/httpuv").

After logging to Open OnDemand, it hangs until a “504 Gateway Time-out” message is displayed

Restart your HMS VPN and try again.

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