[Zope-dev] Good storage/system for sessions

[Andreas Jung]

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We are using MongoDB in our latest projects for storing data changing
frequently (e.g. session-like data). We have been using Memcached in the
past occasionally. In both cases you may need to write a bit of code for
integration both systems with the ZODB transaction system (if needed) -
writing a ZODB transaction handler is pretty easy.

- -aj

lists at nidelven-it.no wrote:
> Hi.
> 
> We've experienced some problems with the Transcience/SESSION system, where
> KeyErrors can pop up for unknown reasons.
> 
> Therefore, I was thinking of writing/using a custom session system, which
> doesn't do anything "magical", just stores it into some kind of database.
> 
> It would have to support multiple ZEO clients, and I'm thinking it should
> also "respect" the transaction machinery, so that if something fails, the
> changes are rolled back.
> 
> I've thought of different approaches, but right now, the best approach seems
> to be a separate database file, in FileStorage, BSDDB or some such variant,
> mounted at the point /session for example.
> 
> Then have 3 methods/functions which set, get and delete entries in the
> storage as necessary.  Every user gets a unique cookie and corresponding
> place in the database.
> 
> What's the recommended way to handle up to many, many small objects with
> frequent writes?
> 
> Am I making unecessary work for me here, or could such a system be useful?
> 
> Has something like it been made before?  Is it better to test and fix
> the Transcience/SESSION system?
> 
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