On 03Jan21, Brandon Martin allegedly wrote: > I was thinking more in the original context of this thread w.r.t. > potential distribution of emergency alerts. That could, if > semi-centralized, easily result in 100s of million connections to juggle > across a single service just for the USA. While it presumably wouldn't > be quite that centralized, it's a sizable problem to manage.
Indeed. But how do you know the clients are still connected? And if they aren't, there is not much a server can do beyond discarding the state. Presumably the client would need to run a fairly frequent keep-a-live/reconnect strategy to ensure the connection is still functioning. Which raises the question: how long a delay do you tolerate for an emergency alert? I think the end result is a lot of active connections and keep-a-live traffic. Not really quiescent at all. In the end, probably just as cheap to poll a CDN. Mark.
