[ZODB-Dev] undo and zodb

[Toby Dickenson]

On Wednesday 04 Sep 2002 8:19 pm, Jim Fulton wrote:

> > I think it is useful to implement both approaches. The explicit refer=
ence
> > checks mean we raise an exception rather than committing a dangling
> > reference. The extra delay on packing means that these weird transact=
ions
> > can commit normally (no exceptions, no dangling references, indeed no
> > sign of any problem)
>
> Yup.
>
> Have you actually encountered transactions like this?

Ive encountered dangling references before in both FileStorage and bsddb.=
Full=20
(I think everyone has), and havent been able to diagnose the cause. I can=
t=20
see how it could have been this problem, but cant say for sure.