On Wed, 24 Jul 2019 at 20:14:22 +0200, Marc Haber wrote: > Scripts with such dependencies will probably fail miserably on systems > that are using systemd-cron instead of one of the "classic" cron > packaes
I thought so too, but they don't: systemd-cron uses run-parts for cron.{hourly,etc.} too. It only generates individual, parallelizable systemd timers for scripts in cron.d, which in general run on their own independent schedules anyway. On Sun, 28 Jul 2019 at 08:47:49 +0200, Marc Haber wrote: > Setting RandomizeDelaySecs sufficiently high on our daily jobs would > probably help to chop off the load pike that especially virtualization > setups running many Debian instances suffer from at 06:25 or 07:35. I > think this could be a net gain worth pursuing. If you want this, the way to opt-in to it is currently to add a native systemd timer, and make the traditional cron script a no-op on systems running systemd (to avoid doing the periodic task twice). For example, apt and man-db have both done this. smcv