Efficient storage / retrieval method for comet-style playable apps (Google Wave, Etherpad)

Question

I am considering a web application that will have the same multi-user mode, auto save, endless undo / redo options that you see on Google Wave and Etherpad (albeit on a much smaller scale and user-based).

Before I leave and reinvent the wheel, this is what has already been seen as part of a technology or library, or even a design template.

I know this is not necessarily the best stack overflow question, since there is probably no “right” answer, but my Google-fu didn't help me, and I just wanted to read the list!

As a rule, I will develop under python / django, but this is not a requirement of preference only :)

Answer 1

Sounds like a real technology club sandwich:

• Web page serving the server and server management server code on the server (s)

• OLTP and Comet instant messaging server code on server (s)

• Version conflict resolution control code on the server

• RAM versioning database in internal internal client environments

• Client version conflict resolution control code (works in batches of incoming bytes to increase responsiveness - the client is single-threaded platform!)

• Comet Instant Messaging ( , - !)

• ()

• 2D- GUI ( , - !)

• -

, - . , Comet -, , Comet .

, GUI (Comet (layer)) .