[Twisted-Python] Persistence in browsers?

Glyph Lefkowitz glyph at divmod.com
Fri Feb 4 21:46:59 EST 2005

Tibi Dondera wrote:

> Short version:
> I have 10.000 - 100.000 web browsers that are connected to my site, and
> I need to inform them __real-time__ (a max of 3-5 seconds delay) of an
> event that happened on the server. Is twisted the right way to go, given
> the fact that it promises asynchronous event handling ?

Wow.  In short, "maybe".  That is a lot of clients.  I believe that 
Twisted is probably up to the task, but regardless of which solution you 
choose, you are going to have to do a lot of tuning.  Have you done any 
prototyping yet?  If you do, I definitely recommend inspecting the 
different reactors for performance differences with your application.

If you can use Javascript, you might want to use a JS sockets library 
rather than XMLHTTPRequest, just so that you don't end up using one of 
your persistent connections up.  Or, perhaps the notification site 
should be notify.yourdomain.com rather than yourdomain.com, so that the 
persistent connection doesn't count towards your "site"...

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