On Sat, 2008-10-25 at 14:43 +0200, Andreas Jung wrote:
On 25.10.2008 14:37 Uhr, Christian Theune wrote:
Hi,
On Fri, 2008-10-24 at 15:41 +0200, Hedley Roos wrote:
The product is a monkey patch to Catalog.py. I'd love some feedback and suggestions.
I'd love if this wouldn't be a monkey patch.
Also, there is nothing that makes this integrate correctly with transactions. Your cache will happily deliver never-committed data and also it will not isolate transactions from each other.
The problem with memcached is that memcached isn't transactional. We managed to solve this problem by implementing a cache tool (for CMF) where where the set/get methods for the memcached participate in the Zope transaction using a DataManager. I can provide the code if someone should be interested.
In addition, you need to include a serial in your cache keys to avoid dirty reads. -- Christian Theune · ct@gocept.com gocept gmbh & co. kg · forsterstraße 29 · 06112 halle (saale) · germany http://gocept.com · tel +49 345 1229889 7 · fax +49 345 1229889 1 Zope and Plone consulting and development