After upgrade from Eel to Fangtooth. Server shutdown or reboor takes approx 30 Min.
I think this happens because it failed unmounting. I have collected some info from several log files. Hopefully someone can help me.
syslog:
Apr 18 12:00:03 truenas syslog-ng[2385]: syslog-ng shutting down; version='3.38.1'
Apr 18 12:30:04 truenas systemd-shutdown: Sending SIGTERM to remaining processes...
Apr 18 12:30:04 truenas systemd-journald[637]: Received SIGTERM from PID 1 (systemd-shutdow).
Apr 18 12:30:04 truenas systemd-journald[637]: Journal stopped
error.log
Apr 18 12:00:19 truenas systemd[1]: Failed unmounting var-log-journal.mount.
Apr 18 12:00:19 truenas systemd[1]: Failed unmounting var-log.mount.
Apr 18 12:00:19 truenas systemd[1]: Failed unmounting var.mount.
Apr 18 12:30:03 truenas systemd[1]: Timed out starting poweroff.target - System Power Off.
daemon.log
Apr 18 12:00:18 truenas systemd[1]: Unmounting var-log-journal.mount...
Apr 18 12:00:18 truenas umount[1145753]: umount: /var/log/journal: target is busy.
Apr 18 12:00:18 truenas systemd[1]: Unmounting var-log.mount...
Apr 18 12:00:18 truenas umount[1145754]: umount: /var/log: target is busy.
Apr 18 12:00:19 truenas systemd[1]: var-log-journal.mount: Mount process exited, code=exited, status=32/n/a
Apr 18 12:00:19 truenas systemd[1]: Failed unmounting var-log-journal.mount.
Apr 18 12:00:19 truenas systemd[1]: var-log.mount: Mount process exited, code=exited, status=32/n/a
Apr 18 12:00:19 truenas systemd[1]: Failed unmounting var-log.mount.
Apr 18 12:00:19 truenas systemd[1]: Unmounting var.mount...
Apr 18 12:00:19 truenas umount[1145761]: umount: /var: target is busy.
Apr 18 12:00:19 truenas systemd[1]: var.mount: Mount process exited, code=exited, status=32/n/a
Apr 18 12:00:19 truenas systemd[1]: Failed unmounting var.mount.
Apr 18 12:30:03 truenas systemd[1]: poweroff.target: Job poweroff.target/start timed out.
Apr 18 12:30:03 truenas systemd[1]: Timed out starting poweroff.target - System Power Off.
Apr 18 12:30:03 truenas systemd[1]: poweroff.target: Job poweroff.target/start failed with result 'timeout'.
Apr 18 12:30:03 truenas systemd[1]: Forcibly powering off: job timed out
Apr 18 12:30:03 truenas systemd[1]: Shutting down.
Apr 18 12:30:04 truenas systemd-shutdown: Syncing filesystems and block devices.
Apr 18 12:30:04 truenas systemd-shutdown: Sending SIGTERM to remaining processes...
Apr 18 12:30:04 truenas systemd-journald[637]: Journal stopped