config-changed from transient unit agent errors

[Marco Ceppi]

I believe the other two scenarios where config-changed may run are agent
returning from down state as well as after a machine reboot. These
shouldn't be problematic so long as all hooks are idempotent.

Marco

On Tue, Apr 4, 2017 at 11:36 AM Jason Hobbs <jason.hobbs at canonical.com>
wrote:

> I'm trying to understand why config-changed is being triggered on my units
> when I'm not changing application config settings.
>
> From doc/charms-in-action.txt:
>
> "The `config-changed` hook always runs once immediately after the install
> hook,
> and likewise after the upgrade-charm hook. It also runs whenever the
> service
> configuration changes, and when recovering from transient unit agent
> errors."
>
> Why does config-changed run when recovering from transient unit agent
> errors?
>
> Is there anything in the logs I can use to identify recovery from
> transient unit agent errors as being the cause of the config-changed hook
> running?
>
> Thanks,
> Jason
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