Hi I'm assuming you are using charms.reactive; if not then look into relation_ids command.
In your interface, count the number of conversations that have a scope set to something other than None. scope shouldn't be None, but I've had cases where it has been (it may have been a bug): So in the provider.py RelationBase derived class, something along the lines of: num = len([c for c in self.conversations() if c.scope]) in a method would be a relatively simple way of doing it. (There may be better ways of doing this!) Cheers Alex. On Wed, Jun 7, 2017 at 4:22 PM, fengxia <[email protected]> wrote: > Hi Juju, > > I'm building two charms and linking them with one relation, one charm > ("A") will provide and the other ("B") will require. > > The deployment will have one "A" and three "B"s. How do I know all three > Bs have joined? I'm thinking to use a counter in A's relation, then at > relation-joined hook by B to add this counter. But set_remote() and > set_local() didn't work. Not sure what's the right way to achieve this? > > > -- > Feng xia > Engineer > Lenovo USA > > Phone: 5088011794 > [email protected] > > Lenovo.com > Twitter | Facebook | Instagram | Blogs | Forums > 9 > > > -- > Juju mailing list > [email protected] > Modify settings or unsubscribe at: https://lists.ubuntu.com/mailm > an/listinfo/juju > -- Alex Kavanagh - Software Engineer Cloud Dev Ops - Solutions & Product Engineering - Canonical Ltd
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