John D. Heintz writes:
 > I am using ZODB along with CORBA to expose peristent objects.  Some of 
 > my objects have per-connection/session state.
 > ...
 > My initial idea is to have a _v_position attribute ...
Using "_v_" attributes for session state is a very bad idea.
They are thread(!) local and not session local.
This means, if a following request of your user (in the same session)
happens to get assigned a different thread, it will read
and update a different position. Chaos is garanteed (though you
will see it only, if your site is loaded).

Use a session product (-> for session data.


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