Rss cloud Vs PubSubHubBub – Should it matter ?
The RSS cloud and the pubsubhubbub (PuSH) way of notifying RSS feeds has gained some interest of late, thanks to wordpress supporting the former format. If you have never heard of these protocols, heres the low down. The RSS feed works by having a client ‘pull’ data from a feed. That is, clients keep nagging at the server every X minutes saying ‘Hey do you have something new for me ?’. The server responds with a no about 99% of the time. This leads to a lot of inefficiencies. Instead if the clients were to use a push model, the data is actually ‘pushed’ to a client automatically without the client asking for it. This is great since the client no longer makes unnecessary calls to the server. The diagrams below illustrate this.
Classic update:
Rss Cloud update:
