On Mon, Nov 9, 2009 at 9:25 AM, Christian Theune <c...@gocept.com> wrote:
> Reading the code talking to tpc_transaction I found that this seems to
> be merely an optimization (which I can disable by just letting
> tpc_transaction return None all the time).
No, it is used to decide if the underlying storage is committing.
> Why is the waiting list necessary?
To avoid blocking the server waiting for an underlying storage's commit lock.
> And why does it work alright in a ZEO
> fan-out scenario?
Why wouldn't it?
For more information about ZODB, see the ZODB Wiki:
ZODB-Dev mailing list - ZODB-Dev@zope.org