Efficient storage/retrieval method for replayable comet style applications (Google Wave, Etherpad)

Posted by Gareth Simpson on Stack Overflow See other posts from Stack Overflow or by Gareth Simpson
Published on 2009-12-04T21:02:04Z Indexed on 2010/05/22 2:50 UTC
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comet

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etherpad

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best-practices

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data-storage

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web

I am considering a web application that would have the same kind of multi user, automatic saving, infinite undo / replay capabilities that you see in Google Wave and Etherpad (albeit on a drastically smaller scale and userbase).

Before I go away and reinvent the wheel, is this something that has already been addressed as either a piece of technology or library, or even just a design pattern.

I know this isn't necessarily the best Stack Overflow question as there is probably not a "right" answer, but my Google-fu has failed me and I'd just like a reading list!

Ordinarily I would be developing under python/django but this is not a firm requirement just a preference :)

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