On this page:
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The output of this command will show you the active sessions. For example, the output below shows the active session's name is "session-88cf35c4":
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grudderham@idas-research-grudderham:~/.rstudio/sessions/active$ ls -a . .. session-88cf35c4 |
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6. Move the active session(s) using the output from the previous step. Note that the name "session-88cf35c4" was in the output of the previous step. In this example, we are moving the active session to a folder called "backup" in the home directory. This will allow us to look back at the active session later if needed.
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# create a folder called "backup" in your home directory # skip this command if you have created the folder "backup" previously mkdir ~/backup # move the active session to the folder called "backup" mv session-88cf35c4 ~/backup |
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7. Restart your IDAS session using the steps here:
Research users: https://uiowa.atlassian.net/wiki/
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8. If this doesn't help, you may need to reset your RStudio's state using the steps here: Resetting RStudio: https://uiowa.atlassian.net/wiki/x/wIaPB.
Preventing Issues
1. Changing R settings
It may be helpful to If you have very large objects in your RStudio workspace, RStudio may struggle to load them. In that case, you can change the settings in your RStudio session, so that every time your RStudio session starts , it starts on a clean slate instead of loading a previous workspace. Some users never changed this setting and that may be fine. However, issues may occur if you have very large objects in your previous workspace and RStudio struggles to load them
If you choose to use this setting, please also consider saving important R objects with the R commands saveRDS() and readRDS(). For more details, see https://uiowa.atlassian.net/wiki/spaces/hpcdocs/pages/76515046/Removing+Active+Sessions+in+RStudio#2.-Saving-your-R-objects.
In RStudio, select Tools -> Global Options -> uncheck the box “Restore .RData into workspace at startup”.
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For more information about different settings in RStudio, please see this support article from RStudio/Posit: https://support.posit.co/hc/en-us/articles/200549016-Customizing-the-RStudio-IDE.
2. Saving your R objects
You may want to save certain R objects, especially if those objects took a long time to create with your code. You can selectively save important R objects with the R commands saveRDS() and readRDS().
For more information about
saveRDS()andreadRDS(), see the R documentation at https://search.r-project.org/R/refmans/base/html/readRDS.html.For explanations and examples, also see section “D.4.1 Saving R Files” here: https://rstudio-education.github.io/hopr/dataio.html#r-files.
Contact
If you have any questions or comments, please contact research-computing@uiowa.edu.