Recorded on March 15th, 2016
Via Daring Fireball.
Once Cowling and crew built the initial code, they tested it on a network of pretty standard hardware—a kind of shadow version of Dropbox that juggled roughly 20 percent of the data that was housed on Amazon. They vowed to test the code for 180 days without finding a major bug, even hanging a countdown clock on the wall at Dropbox HQ. And when a bug turned up after two months—a bug that could have seen data stored in the wrong place—they reset the clock. In all, the testing took eight months.
It is totally insane the lengths Dropbox is going to on this. Each step in this story seems more extreme than the previous one. And it all makes Day One’s proprietary sync service look a lot less crazy in retrospect.
They must have tested the hell out of this. I never noticed a blip, and I use Dropbox dozens of times a day.