comet

So I'm using SignalR, it's setup and working correctly on my Website. Let's suppose user A logs in (I am using the Membership API). When A logs in I am calling the connection from .js located in my masterpage. That will assign this use a specific userId. Let's say now user B logs in goes does some event and that event needs to notify user A from codebehind. So what I am trying to do here is notify user B of use A's action from CodeBehind. How will user B know user A's ID and how does the whole thing work? I couldn't find help in the documentation as it does not go into that kind of stuff. How

they are both free but i think glassfish has some limitation or when you reach up to a certain nr of users (comet) then you have to pay? is that correct? if true, could you use tomcat as a comet server? if not, then which free comet servers are there supporting long polling and iframe? Pascal Thivent They are both free but i think glassfish has some limitation or when you reach up to a certain nr of users (comet) then you have to pay? is that correct? No, GlassFish doesn't have such limitation (where did you hear that?). You only have to pay if you want official support through a subscription.

With the Net Stream Object with TCP works great (as presetend in the node.js introduction video ), but how should I do this in HTTP? Is there a way to access sockets/clients within an http.createServer() ? Or what's the method to do it? I tried to figure out the solution from the official node chat demos souce code , but I don' really understand. I understand the client side js, but what's happening after I(as a client) send a message trough AJAX, to the server side js? How can I send to the other clients who's on the server too? Please note that I wan't to learn the logic of the process, so I