Re: Scheduling sequential systemd tasks

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On Wed, 2021-07-21 at 11:46 -0700, Doug H. wrote:
> On Wed, Jul 21, 2021, at 11:29 AM, John W. Himpel wrote:
> > I would like to run a task (TASKA) that updates some files at a 
> > specified time each day.  I already can do that
> > successfully using systemd timers and services.
> > Upon completion of TASKA, I want to run TASKB with is an rsync command 
> > to propagate any file changes made in TASK A to
> > other hosts.  TASKA may run quickly or slowly, so I don't want to use a 
> > timer for TASKB, rather I want TASKB to execute
> > upon the completion of TASKA.
> > I can't seem to find the proper set of systemd options to set in the 
> > service file for TASKB to cause it to run upon
> > completion of TASKA.
> > Suggestions are welcome.
> 
> 
> That sounds like a classic usage case for a cron job. One script the does the two tasks one after the other.
> 
> Why make it more complicated than that?
> 
> 
> -- 
> Doug Herr
> fedoraproject.org@xxxxxxxxxxx
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Cron and anacron do not handle well the circumstances where the server is down during the time, the cron/anacron job is
supposed to start.  Systemd will run the job when the system is brought back up.  Running the job late is acceptable. 
Not running the job is not acceptable.

John
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