When you do scale-out, putting more eggs in a basket creates a conflict between the cost of consolidation vs the cost of administering more instances. Finding that sweet spot won't be easy and you may need to maintain that across several generations outside a physical server, since complete slash-and burn or green-field deployments aren't normal beyond the 1st build-out.
sys.stdout.write(u"\u001b[1000D") # Move all the way left again
，这一点在爱思助手下载最新版本中也有详细论述
Recognition isn’t the same as validation
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