“I scaled the photo vertically.”
Tech Entry 316 / 1605 60-second read
Vertical vs. Horizontal Scaling
Adding power to one machine versus adding more machines.
The comparisoni
“We hit our limit, so we need to scale horizontally by adding more nodes.”
The ruleii
¶
VERTICAL = Scale UP (bigger CPU/RAM).
Vertical is easy but has a ceiling. Horizontal is complex but theoretically infinite.
Memory aidiii
Remember it like this
Vertical = Height (one building). Horizontal = Width (a city).