FWIW, GAE has always changed for datastore reads & writes, they just upped the price.
It sounds like you have a fundamental architectural issue in that your cache invalidation is too heavy-handed. I would look for ways to invalidate smaller parts of the cache, or put it on a schedule (presumably you don't need *realtime* updates of the page content). I sympathize that GAE's old pricing model led you to an cost-inefficient architecture, but I'm not sure you're going to do better on AWS - pulling thousands of items per second out of a clunky EBS-backed MySQL might be a problem at the bottom end of the budget. Suerte, Jeff On Thu, Nov 3, 2011 at 12:21 PM, Xin Liu <v2ex.li...@me.com> wrote: > My site's typical page is like this: > > http://www.v2ex.com/t/7577 > > As you have seen, a topic with dozens replies, each reply carry 3 entities: > reply, member and avatar. And there are other supporting dynamic elements on > the page (most of them can be cached). > > But when someone replied to the topic, then it will trigger a lot memcached > objects to be removed. For hot topics, memcached objects can just survive > minutes or even seconds. > > And there could be 100+ or even 1000+ entities on one page. > > If I knew they're going to charge datastore reads/writes, I may think > another way to write the code. But now, it's too painful to rewrite the > whole site. > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To view this discussion on the web visit > https://groups.google.com/d/msg/google-appengine/-/0dfGjryGNWwJ. > To post to this group, send email to google-appengine@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/google-appengine?hl=en. > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
