Bug#744753: anacron: Anacron not triggered when system resumes under systemd

[Lennart Poettering]

On Fri, 27.06.14 20:45, Michael Biebl (biebl at debian.org) wrote:

> Am 27.06.2014 20:10, schrieb Lennart Poettering:
> > Well, I know that much. But a service which needs to be restarted on
> > cases like this sounds wrong. Thats a hack really. The service should
> > just watch time changes and react correctly to that. i.e. use
> > TFD_TIMER_CANCEL_ON_SET. THis will report wallclock changes relative to
> > monotonic time, which is what you want to watch for this. All system
> > resumes will trigger this, of course.
> 
> I might be missing something here, but keep in mind that anacron is not
> a long running process. It does its work and then exists.
> 
> So what you describe above does not really help.

Since a long time we had on our TODO list to support timer units that
are triggered when the system clock changes, based on
TFD_TIMER_CANCEL_ON_SET. Hasn't been implemented yet, should be fairly
easy though. This should fit your bill perfectly, no?

"OnClockChange=yes"

or so...

Lennart

-- 
Lennart Poettering, Red Hat