Periodically some of the Thredds servers run by Unidata get seriously overloaded. One cause is because external users poll the Thredds server to see what has changed. If the polling rate is too high then the performance of the Thredds server can seriously deteriorate.
I am proposing here to mitigate this problem by allowing Thredds servers to generate events that signal changes that might be of interest to users. Then, instead of polling, these users can watch for specific changes events and use that information to update their local databases (or whatever).[Read More]