On Thu, October 26, 2006 15:00, Marco Bizzarri wrote: > On 10/26/06, Jürgen Herrmann <[EMAIL PROTECTED]> wrote: >> >> On Thu, October 26, 2006 14:53, Marco Bizzarri wrote: >> > Storing persistent object in object outside of ZODB can incur in the >> > problem of passing object(s) between threads, and, therefore, passing >> > one object which is related to a connection on the ZODB to another >> > context with a different connection. > >> ok, this is probably the problem here, so would haveing a cache dict >> for each thread help? there are only about 50-100 containers so the >> memory overhead would be neglible compared to the performance gained. > > Yes, this should probably resolve your issue. > >> > >> > Also, AFAIK, keep in mind _v_ attributes are not involved in >> > transaction machinery of Zope. This means that if you have an error >> > inside you transaction after you modified the _v_ cache, you will have >> > the cache modified even tough the transaction has been aborted. >> not a real problem as class instance containers are very static. > > I understand, we hit this problem while caching object obtained from > database rows... and in case of failure cache became unreliable. > > I'm keeping the answer on the ML, if you don't mid.
of course, my failure while responding. > > -- > Marco Bizzarri > http://iliveinpisa.blogspot.com/ > _______________________________________________ > Zope maillist - [email protected] > http://mail.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://mail.zope.org/mailman/listinfo/zope-announce > http://mail.zope.org/mailman/listinfo/zope-dev ) > _______________________________________________________________________ >> XLhost.de - eXperts in Linux hosting << Jürgen Herrmann Konrad Adenauer Allee 43, DE-93051 Regensburg Fon: +49 (0)700 XLHOSTDE [0700 95467833] Fax: +49 (0)721 151 463027 WEB: http://www.XLhost.de _______________________________________________ Zope maillist - [email protected] http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
