Hey David..
Thanks for the thoughts on this...On Thu, Jul 28, 2016 at 5:26 PM, David A. De Graaf <dad@xxxxxxxx> wrote:
On Thu, Jul 28, 2016 at 02:53:34PM -0400, Tom Horsley wrote:
> On Thu, 28 Jul 2016 14:37:41 -0400
> David A. De Graaf wrote:
>
> > Have I overlooked something obvious? Is there a way to make systemd
> > perform the simple function 'shutdown' smoothly, reliably and quickly?
> > If anyone knows how, I would love to hear it.
>
> I can't make systemd itself work, but I've been using an
> outside systemd solution for a while now: I setup
> an alias for the "reboot" command that arranges to
> kill off all the things systemd unreasonably waits
> for, then does a real reboot.
>
> Since systemd now has nothing to stop it, it reboots
> rather fast (until something new shows up which I have
> to track down and add to my list :-).
>
> My current set of things to do before shutdown includes:
>
> umount -l -t nfs -a
> apachectl -k stop
> kill all the "user deamon" process trees.
>
> The user daemon stuff is handled by a program
> described here:
>
> http://tomhorsley.com/game/punch.html
>
Thank you Tom Horsley for all your brilliant insights,
and especially this one.
I have taken your 'locate-user-daemons.c' program, lock, stock
and barrel, stirred with some other condiments and come up with
this alternate /usr/local/bin/reboot script that works for me:
$ cat /usr/local/bin/reboot
# Precede normal reboot command with unmounting of nfs mounts
# and stop other impediments to progress
/usr/local/bin/nfsumount
/usr/bin/pkill -9 gkrellmd
/usr/local/bin/locate-user-daemons | /bin/bash -i
systemctl reboot
where /usr/local/bin/nfsumount contains:
# Forcibly umount all autofs-mounted filesystems
mount | grep /net/ |
sed -e 's/.*on //' | sed -e 's/ .*//' |
sort -u | tac |
while read fn; do
umount -fl -t nfs $fn &
done
Your simpler 'umount -l -t nfs -a' works for mounts listed
in /etc/fstab, but not for autofs-mounted filesystems, I believe.
I (re)discovered that gkrellmd takes a full 90 sec to be stopped
by systemd, but no time at all by pkill; I added that.
As you say, more may turn up.
Now the 'reboot' command makes my systems shut down smoothly, reliably
and quickly, as proper Linux systems should.
--
David A. De Graaf DATIX, Inc. Hendersonville, NC
dad@xxxxxxxx www.datix.us
"Those who hear not the music, think the dancers mad."
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