judging by Mone's post which I found here:
is displayed when Lightstreamer is provided with an update for an item which has not been subscribed to.
< WARN> Unexpected update for item xyz
Given the fact, that "subscribtion" in this case means "presence of a client", I assume that this warning will be generated each time there is no actual client trying to get that particular xyz item. Now, two quick questions:
1. do I understand this subscription mechanism correctly?
2. if the answer to question 1. is "yes" then why would a lack of clients be reported as a WARN? After all, it's possible that no one is currently visiting my site (I use HTML clients along with java adapters), which is perefctly ok. Why would I need to be warned about that?