On Tue, Sep 29, 2015 at 06:55:00AM +0200, Berend De Schouwer wrote: > On Sun, 2015-09-27 at 21:53 +0100, Richard W.M. Jones wrote: > > On Thu, Sep 24, 2015 at 06:18:24PM +0200, Berend De Schouwer wrote: > > > I'm currently using a cron script to touch a file every 10 minutes, > > > and > > > read that on bootup (before chronyd), and I've added a > > > 'Requires=touchClock' to some systemd services. > > > > I think you don't need the cron script. If you make the > > (reasonable?) > > assumption that files in /var/log are updated regularly then: > > > > # find /var/log -type f -print0 | xargs -0 stat -c '%Y %n' /var/log | > > sort -nr | head -1 > > > > (You can omit the %n if you don't care about the actual file that is > > the newest). > > I think systemd systems are supposed to move to journald. Are there > still official /var/log files that are intended to remain over the next > few Fedora releases, and guaranteed to exist and updated?
journald stores files under /var/log ... > I'm not convinced that depending on a wildcard file is robust long- > term. It sounds like a recipe for random failures. > > > > I'm don't think depending on journald is right. Journald starts on > initrd before the filesystem is mounted, and then moves the journal > after / is mounted; so it might be (not confirmed) that > /var/log/journal/ has a bad timestamp on boot. ... and this doesn't matter because the command above finds the newest file under /var/log. If journald writes a file with a 1970-01-01 timestamp it won't be the newest file. > I think we should. Especially since it already ships systemd- > timesyncd. How do we go about that? But anyway as systemd-timesyncd was pointed out in the other reply, and it seems to be doing mostly the same as your technique, I guess we need to find out if we can use that (probably it's just a matter of enabling the service?). systemd has a mailing list: http://lists.freedesktop.org/mailman/listinfo/systemd-devel Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-p2v converts physical machines to virtual machines. Boot with a live CD or over the network (PXE) and turn machines into KVM guests. http://libguestfs.org/virt-v2v _______________________________________________ arm mailing list [email protected] https://admin.fedoraproject.org/mailman/listinfo/arm
