On Tue, Jun 25, 2013 at 1:45 AM, julien boucher <[email protected]> wrote:
> I deployed an app with a set of periodic tasks a week ago.
> Everything went fine for a week - using heroku free instance as a worker
> dyno (no web server active).
>
> Yesterday afternoon,  I started the web server for 10 minutes and shut it
> down in the Heroku interface.
> Since then it seems the worker is idling and it is not sending any periodic
> task anymore.

Well, if the worker is idle then it's not alive enough check the
system clock to start processing jobs again/triggering invocations.

If you have a fairly loose latency requirements and can't use all the
resources of one dyno all the time, I suggest using the scheduler
addon to process trigger work every ten minutes or so:

  https://addons.heroku.com/scheduler

This way, if there's no work to do the job will just exit more or less
right away, incurring the billing of a trivial number of
dyno-hours/seconds.

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