Knowing the right way to export an SVG (scalable vector graphics) file can be tricky, especially if your goal is to animate it later. When…
Update 6: Some interesting changes from Twitter's Evan Weaver: everything in RAM now, database is a backup; peaks at 300 tweets/second; every tweet followed by average 126 people; vector cache of tweet IDs; row cache; fragment cache; page cache; keep separate caches; GC makes Ruby optimization resistant so went with Scala; Thrift and HTTP are used internally; 100s internal requests for every exter
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Posted by Nick Sieger Wed, 23 May 2007 05:51:36 GMT I was fortunate to be in town right after RailsConf and attended the inaugural geekSessions event on Rails scalibility. The event went off without a hitch: it was well attended, City Club is a classy place, and there was decent food and an open bar. I don’t know the SF geek/startup scene, but pretty much all of the few guys I know were there alon
Introduction ActsAsReadonlyable adds support of multiple read-only slave databases to ActiveRecord models. When a model is marked with acts_as_readonlyable, some of AR finders are overridden to run against a slave DB. The supported finders are find, find_by_sql, count_by_sql, find_[all_]by_*, and reload. Finders can be forced to fall back to a default DB by passing the :readonly flag set to false.
→ Ruby on Rails → ActiveRecords WARNING Despite the 1.0.0 version number, various people have experienced problems using this tool. I haven’t yet found a solution (I haven’t really been looking though), so please subscribe to the forum or RubyForge news for any updates on a solution. What ActiveRecord models are allowed one connection to a database at a time, per class. Ruby on Rails sets up the d
edit On Twitter, Rails, and Community Posted by kev Sun, 15 Apr 2007 20:13:00 GMT An interview by a twitter developer has gotten a good deal of press lately. For many, it has reawakened the giant that is the “does Rails scale” debate, and others feel compelled to defend the framework. The problem with Rails isn’t that Ruby is slow. It’s also not that Rails is slow, or big, or bloated, or doesn’t s
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