Hi There I'm considering using the design "Transactional sequences" described in the excellent "Building high-throughput data pipelines" talk by Brett Slatkin (http://www.google.com/events/io/2010/sessions/high- throughput-data-pipelines-appengine.html).
The design uses markers for both the source of the update and the targets which should eventually be in sync. I'm just wondering if anyone has some experience with the storage requirements of these markers. As far as I can tell, the are kept around - forever. So, if have 100k users where each on an average is involved with about 1500 products (let's say I was counting how many users have shown interest in a product) that would leave me with 100k * 1500 + 100k ~= 150M markers, and growing since new users and products will add markers, since deleting old users and old products won't clear out the markers (unless I add some referential integrity). Any thought anyone? Cheers /Tonny -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
