Could not connect to R Session - Unable to connect to service (1)

RStudio IDE
1

Hi,
I've been running RStudio Server for several years on Arch (Endeavour OS) with no issues until recently. Now when I log into the Rstudio Server session I get the following message:
image

If I check the status of the rstudio-server service I don't get any errors.

I thought it might be an issue with the previous version of rstudio-server but now that I installed the latest one I still get the issue.

I already saw several messages about this issue throughout the years but no solution or guidance of how to tackle what might be causing it.

Thanks

2

Do you get any further messages in the log files in /var/log/rstudio/rstudio-server and ~/.local/share/rstudio/log?

3

Thanks for your interest and pointing out to the log files:
Here is what I'm getting from the ~/.local/share/rstudio/log

024-11-19T12:51:34.579963Z [rsession-gds506] ERROR The previous R session terminated abnormally; LOGGED FROM: rstudio::core::Error {anonymous}::rInit(const rstudio::r::session::RInitInfo&) src/cpp/session/SessionMain.cpp:754
2024-11-19T12:52:08.694115Z [rsession-gds506] ERROR system error 37 (No locks available) [lock-file: /media/nvme2tb/analysis/Cornell_projects/BPIviz_tool/.Rproj.user/30424291/sources/session-39b870bb/lock_file]; OCCURRED AT virtual rstudio::core::Error rstudio::core::LinkBasedFileLock::acquire(const rstudio::core::FilePath&) src/cpp/core/file_lock/LinkBasedFileLock.cpp:532; LOGGED FROM: rstudio::core::Error rstudio::session::source_database::supervisor::attachToSourceDatabase() src/cpp/session/SessionSourceDatabaseSupervisor.cpp:422
2024-11-19T12:52:08.727416Z [rsession-gds506] ERROR system error 37 (No locks available) [lock-file: /media/nvme2tb/analysis/Cornell_projects/BPIviz_tool/.Rproj.user/30424291/sources/session-39b870bb/lock_file]; OCCURRED AT virtual rstudio::core::Error rstudio::core::LinkBasedFileLock::acquire(const rstudio::core::FilePath&) src/cpp/core/file_lock/LinkBasedFileLock.cpp:532; LOGGED FROM: rstudio::core::Error rstudio::session::source_database::supervisor::{anonymous}::createSessionDir() src/cpp/session/SessionSourceDatabaseSupervisor.cpp:247

Nothing relevant from the log in /var/log/rstudio/rstudio-server

4

Interesting. I t looks like the process cannot require a lock file:

ERROR system error 37 (No locks available) [lock-file: /media/nvme2tb/analysis/Cornell_projects/BPIviz_tool/.Rproj.user/30424291/sources/session-39b870bb/lock_file]

Does the mentioned file /media/nvme2tb/analysis/Cornell_projects/BPIviz_tool/.Rproj.user/30424291/sources/session-39b870bb/lock_file exist? This looks as if you are trying to edit a project that is stored on an external disc. Is that disc attached?

5

Yes, the file does exist.
The project is not on an external disk, it's just my 2ndary nvme drive that it's mounted on /media.
A while ago I did some research online about this issue and I kind of remember that others mentioned the "lock" of certain files too.
I'm using the EndeavourOS distro (Arch) with latest updates, I think others with more common distros have also reported the same issue.

6

Let's try changing the configuration for file locking. This is done in /etc/rstudio/file-locks. A file that normally does not exist, but the defaults correspond to

lock-type=linkbased
use-symlinks=0

Can you test if locak-type=advisory and/or use-symlinks=1 help in your case?