2013/4/17 Daniel Swarbrick <[email protected]>

> On the pure Django side of things, one of the challenges I encountered was
> "IDLE IN TRANSACTION" hanging DB connections in the long-running WebSocket
> views. I really ought to research a more elegant solution to this, but for
> now I'm just doing all my DB queries early in the view, then fairly
> brutally closing the DB connection before entering the long-running WS poll
> loop.
>

The new transaction management introduced in Django 1.6 may help with this
problem, but it isn't a good idea not to maintain one database connection
per websocket on a website with more than a few users anyway :)

I believe you need a connection pooler and asynchronous database I/O if you
want to talk to the database from a websocket handler. I haven't looked at
this in detail.


Is there any possibility that Tulip could be backported to Python 2.7, or
> are we kinda past caring about 2.x?
>

No, it cannot be backported to Python 3.2 or earlier because it requires
the "yield from" syntax introduced in Python 3.3.

-- 
Aymeric.

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