> On Aug 2, 2019, at 22:45, Andrei Borzenkov <arvidj...@gmail.com> wrote: > > 02.08.2019 23:24, Johannes Ernst пишет: >> I have a oneshot .service (certbot) that is run by its .timer with: >> >> OnCalendar=daily >> RandomizedDelaySec=1day >> >> I also have a sometimes long-running script that may modify the same data. >> So the script and the oneshot service should never run at the same time. >> > > If script itself runs as oneshot service, then putting After in your > certbot.service should do it (it should wait for prerequisite service to > complete).
No, the other script is a command-line tool invoked by the user. > >> Is there a good systemd pattern for some kind of semaphore-like thing that >> will delay the execution of the oneshot service and try again when the >> script is done running? >> >> I could skip execution, but then I miss an entire day until the service is >> run again -- I’d prefer it if it tried again a few minutes later. Or I could >> poll for some flag before running the main part of the service. Wondering >> whether there something more systemd-native. >> >> Thanks, >> >> >> >> Johannes. >> >> _______________________________________________ >> systemd-devel mailing list >> systemd-devel@lists.freedesktop.org >> https://lists.freedesktop.org/mailman/listinfo/systemd-devel >> > > _______________________________________________ > systemd-devel mailing list > systemd-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/systemd-devel _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/systemd-devel
