Hi Andreas, Thank you for your quick answer.
Friday, June 23, 2006, 2:36:56 PM, you wrote: AJ> --On 23. Juni 2006 14:27:52 +0200 Adam Groszer <[EMAIL PROTECTED]> wrote: >> Hi there, >> >> I know it is not easy, but I need some advices to keep our bosses >> happy at the planning stage of our application. >> >> The application we are planning is a document management application >> which follows documents in a company. Document and version count could >> be around 10000s, AJ> 10000s per document? Sorry, around 10000s of document, each having 10s of versions, so around 100k versions/files. That grows to 300k objects or more with all bells and whistles. (Version history, Workflow history, ...) >>quite frequent writes are possible so concurrency >> might be an issue. Document files might be stored as BLOBs or >> separately on a files system to relieve ZODB. >> >> Some fears they are having and I can't find unambiguous information: >> - Is ZODB a good choice for this app? Which storage to consider? >> Filestorage? AJ> We run a CMS with several ZEO storages using FileStorage with up 300k AJ> different objects per storage. May you mention some or some sites on the internet that run Zope/ZODB to have some examples? >>maybe PGStorage? >> - ACID properties. Is it really ACID, I mean data consistency level >> could be compared to a RDB? AJ> What do you mean? The ZODB is transactional and other systems (RBDMS) can AJ> be hooked with the transaction system of Zope...this is daily practice. My problem is that I'm quite confident that ZODB may be able to handle the application, but I have to convince some other people too. They are coming with a strong RDB background. I would appreciate some facts to hit them hard. >>Here we do not have any experience and the >> application should be a real good one. >> - Coming from the RDB world, what are our current choices to provide a >> referential integrity like service on top of ZODB? AJ> See above AJ> -aj -- Best regards, Groszer Adam -- Quote of the day: Things turn out best for the people who make the best of the way things turn out. - Art Linkletter _______________________________________________ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org http://mail.zope.org/mailman/listinfo/zodb-dev
