Perhaps it would be useful to surface whether a member is presently satisfying an affinity request. I think I'd be interested to click into an affinity group and see its current affinity status. Or return a list of members that are currently failing to satisfy an affinity request.

Then, the next question might be; how do I fix it? Which I presume in most cases is, stop and start the instance ... which the user can do. And occasionally, reduce overall utilization / wait for software update to finish / add more capacity – which the user might not be privy to.

Perhaps it would be useful to surface whether a member is presently satisfying an affinity request. I think I'd be interested to click into an affinity group and see its current affinity status. Or return a list of members that are currently failing to satisfy an affinity request.

I filed #7614 to track this. I think it's a totally reasonable request.

Then, the next question might be; how do I fix it? Which I presume in most cases is, stop and start the instance ... which the user can do. And occasionally, reduce overall utilization / wait for software update to finish / add more capacity – which the user might not be privy to.

This is more subtle - we could also presumably automatically resolve this in some cases, by live-migrating, but doing so feels a little opinionated. This may justify an additional policy for affinity groups, beyond the "policy = allow" that we currently have -- maybe we want "policy = allow, but if we can't fulfill it, keep it where it is" vs "policy = allow, and if we can't fulfill it now, move it later".