Would facebook get notifications via comet push or an ajax script that checks for new notifications every second? and which is more efficient for such a system?
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- dongxing7083 2011-04-13 20:02关注
It looks more like comet to me, there is a GET request to ?.??.channel.facebook.com that takes 55 seconds to time out. This GET request repeats the entire time I have the page loaded - This is how long polling works. I'm using Chrome, it could use a different transport for another browser.
If there were to be a notification, the request would complete before the 55 seconds timeout. Say at 30 seconds, and another GET request would be made. This is certainly more efficient than polling every second.
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