[mod_python] session data and shared memory

hello,

I know the issue of session management has been brought up before, but I
have a more specific question on the topic. Is there a way to keep
session state across threads/forked apache processes?

Storing the session state in a database carries a lot of overhead since
every request requires at least one query.

Another solution I had in mind was to use the ZODB with ZEO, so that
when a user logs in for example a session object will be created in the
ZODB. But this seems like a great deal of hoops just to store a few
attributes of session.

I have also thought about implementing a very basic LDAP like session
registry service. Each mod_python process would open a connection to
this registry and be able to share session data with other processes.

Has anyone else faced such a problem? Are there any other ways to
synchronize data between mod_python instances?

thanks in advance,

 - lex

-- 
Lex Berezhny <LBerezhny at DevIS.com>