Can't change endpoint list while running

[purpleidea]

I'd like to change the endpoints that a client knows about so that it can dynamically switch to a different endpoint if one goes down. I know that I can specify multiple endpoints initially, however if a new server joins the cluster after I've configured my client, then it won't get used.

Is there already some mechanism to do this, or does anybody have any reason why we can't directly modify the endpoints list of a client? (We can't because that variable is private.) If there's no other way, and nobody has any reasons why this wouldn't work, then I can try and write the patch.

API suggestions welcome.

NOTE: I'm referring to the V3 API.

[purpleidea]

FWIW I wrote a private patch to change the list of endpoints, but it doesn't seem to do what I expected might happen :(