Stray, orphaned 'rsession' process - how? #108
Description
After introducing CGroups v2 CPU and memory limits - CPU quota 200% and 96 GiB - we've observed several RStudio Server instances to fail. What is odd is that this can leave behind orphaned rsession processes;
$ ps aux | { head -n 1; grep alice; }
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
alice 1526410 0.0 0.0 497720 17684 ? S Sep25 0:00 rsession --config-file /home/alice/.config/rsc/rsession.conf -u alice --session-use-secure-cookies 0 --session-root-path / --session-same-site 0 --session-use-file-storage 1 --launcher-token 8C488AE8 --r-restore-workspace 2 --r-run-rprofile 2
alice 3947599 0.0 0.0 89960 6236 ? Ss Sep23 1:34 /usr/lib/systemd/systemd --user
alice 3947600 0.0 0.0 332236 7148 ? S Sep23 0:00 (sd-pam)
alice 3952644 0.0 0.0 497740 74388 ? S Sep23 0:00 rsession --config-file /home/alice/.config/rsc/rsession.conf -u alice --session-use-secure-cookies 0 --session-root-path / --session-same-site 0 --session-use-file-storage 1 --launcher-token E917D0D7 --r-restore-workspace 2 --r-run-rprofile 2
alice 3988531 0.0 0.0 497740 80292 ? S Sep23 0:00 rsession --config-file /home/alice/.config/rsc/rsession.conf -u alice --session-use-secure-cookies 0 --session-root-path / --session-same-site 0 --session-use-file-storage 1 --launcher-token E917D0D7 --r-restore-workspace 0 --r-run-rprofile 0
alice 4006731 0.0 0.0 497744 78672 ? S Sep23 0:00 rsession --config-file /home/alice/.config/rsc/rsession.conf -u alice --session-use-secure-cookies 0 --session-root-path / --session-same-site 0 --session-use-file-storage 1 --launcher-token 5A012D4A --r-restore-workspace 2 --r-run-rprofile 2
$ date --iso-8601
2024-10-05