The scaling ladder
On This Lesson 4 topics
This lesson is planned. The outline below lists the topics it will cover. The full lesson has not been published yet.
In this lesson
climb from the cheapest option upward, with evidence at each rung.
Planned topics
- Order: fix queries and indexes, cache, vertical scale, read replicas, partitioning, sharding or distributed SQL.
- Each rung adds operational and application complexity.
- Move up only when measurements show the current rung cannot meet the target.
- Write load is the hard part; reads are easier to offload.
Draft outline details
Demonstration
a ladder diagram with the capacity gain and complexity cost per rung.
Check your understanding
Why exhaust simpler options first?
Show answer
Each step up adds complexity and cost that simpler fixes may avoid.
Practice
Apply this lesson with the module's lab, exercises and quiz.
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