Twitter is humming along now after a late night. Our team worked earnestly into the night and morning on our largest and most complex maintenance project ever. Everything went pretty much according to plan except for one thing: an incorrect switch.
The switch in question caps traffic an unacceptable level. In order to correct this, we’ll need to get some hardware installed. Unfortunately, that means we’re not done with our datacenter move just yet. This type of work can be frustrating but it’s all towards Twitter’s highest goal: reliability.