> The reason it does what it does exists, the cron job runs > once a day and if you compare the timestamps directly, and > the cron job happens to run 23:59:59 hours after the last time, > it wouldn't execute, hence it just compares the days.
Which is the reason why my apt configuration has included APT::Periodic::Update-Package-Lists "18h"; for some time (which only works with a modified apt.systemd.daily, of course). Note that, because Debian handles activation independent of the duration variables in APT::Periodic, the meaning of the latter is different from what a user might naively expect after reading the documentation: while a description like APT::Periodic::Download-Upgradeable-Packages "0"; - Do "apt-get upgrade --download-only" every n-days (0=disable) in apt.systemd.daily suggests that these variables control activation, they are in effect only variables to *suppress* the execution if the last execution was too recent. This also means that the current implementation permits at most one execution per calendar day; see report #778873 for an example of someone who wanted more (which would be trivial with systemd timers, provided apt.systemd.daily were to be modified as I proposed or one were to abolish these variables entirely). > I have no intention of changing the behavior of these timestamps > because we really need to remove them entirely and rely on systemd.timer > execution settings, otherwise this never works reliable (and the > cron job for non-systemd systems will retain the existing behavior > as-is, it is a static target that should remain bug-compatible forever). > > But this requires splitting up the services further to reasonable levels > of configurability and I haven't put any work into that yet. I have no problem with that. After all, it's FOSS, and I can modify the files on my systems. I just thought my proposal would be useful to others as well (besides aligning with the documentation and eliminating one unnecessary cause of runtime errors -- oh, and trivial to implement). Regards, Martin Lottermoser -- Martin Lottermoser martin.lottermo...@htp-tel.de Greifswaldstrasse 28 38124 Braunschweig http://home.htp-tel.de/lottermose2 Germany Telephone: +49 531 6802747
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