I changed the idle-time to 1 minute for debugging. What I can see 20 seconds before the umount happens:
bioserver3 /etc/systemd# lsof /home/b COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME jupyterhu 14150 biouser cwd DIR 0,107 4096 134348997 /home/b/biouser (<server>:/b) jupyterhu 14150 biouser 10u REG 0,107 16384 151474490 /home/b/biouser/.local/share/jupyter/nbsignatures.db (<server>:/b) python3.1 14195 biouser cwd DIR 0,107 4096 134348997 /home/b/biouser (<server>:/b) python3.1 14195 biouser 45u REG 0,107 28672 134367744 /home/b/biouser/.ipython/profile_default/history.sqlite (<server>:/b) python3.1 14195 biouser 47u REG 0,107 28672 134367744 /home/b/biouser/.ipython/profile_default/history.sqlite (<server>:/b) R 14198 biouser cwd DIR 0,107 4096 134348997 /home/b/biouser (<server>:/b) R 14198 biouser 3u REG 0,107 18 134945871 /home/b/biouser/tmp/.nfs00000000080b1c4f000000c2 (<server>:/b) So, that's very far from the nfs mount being idle, but 20 seconds later the mount gets removed. When I chdir (as root) into /home/b, the mount stays and the user's jupyterhub session keeps running (tested for 30 minutes). When I chdir away from /home/b, the mount is removed a minute later. How can /home/b be considered idle with the above processes running..? cu, Frank -- Dipl.-Inform. Frank Steiner Web: http://www.bio.ifi.lmu.de/~steiner/ Lehrstuhl f. Bioinformatik Mail: http://www.bio.ifi.lmu.de/~steiner/m/ LMU, Amalienstr. 17 Phone: +49 89 2180-4049 80333 Muenchen, Germany Fax: +49 89 2180-99-4049 * Rekursion kann man erst verstehen, wenn man Rekursion verstanden hat. *
