It would take me more than one blog post to describe the architecture that powers Sentry, the various areas that have and can have bottlenecks (some more obvious than others).
More importantly, this a few months ago I made the switch, and I don't remember the specifics of the order of events. I can assure you though that I know a little something about a little something, and I wasnt imagining problems.
(Replied to the wrong post originally, I fail at HN)
"I can assure you though that I know a little something about something, and I wasn't imagining problems."
Since you've made it clear in another thread that you were actually running out of RAM on your dynos, I imagine you were running into trouble. There's no need to be snide about it.
Bottom line: you hit an arbitrary limit in the platform. If heroku had high-memory dynos, the calculus would be different. In the future, instead of arguing that your homebrew system is better than "the cloud", you could just present the actual justification for your choice.
More importantly, this a few months ago I made the switch, and I don't remember the specifics of the order of events. I can assure you though that I know a little something about a little something, and I wasnt imagining problems.
(Replied to the wrong post originally, I fail at HN)
http://news.ycombinator.com/item?id=4458643