[Zope-dev] Serving large files

[Sidnei da Silva]

On Sun, Sep 17, 2006 at 09:24:40PM +0200, Christian Theune wrote:
| I wonder whether this statement is true:
| 
|    Any connection handed out after the connection breaks the ACID
|    compliance of the request.
| 
| I think this is because:
| 
|    When finishing the actual work we have to either commit or abort the
|    running transaction.
| 
|    In the time until we set up another transaction, there already might
|    have been a change to the database by a third transaction, making the
|    request neither isolated nor atomic.

Suppose the request finishes with 'tid=X' and that it should be
possible to open a read-only connection which would be a snaphsot of
the database at 'tid=X'?

-- 
Sidnei da Silva
Enfold Systems                http://enfoldsystems.com
Fax +1 832 201 8856     Office +1 713 942 2377 Ext 214
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