Load shedding and admission control
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
stay useful under overload by rejecting work on purpose.
Planned topics
- Overload without limits makes everything slow, then fails everything.
- Admission control: limit concurrent work per service and reject early.
- Shedding priority: protect checkout and paying customers; drop recommendations and bots first.
- Return fast errors with retry hints; avoid retry storms.
Draft outline details
Demonstration
a priority table (critical: payment confirm; high: checkout; medium: browse; low: recommendations, crawlers) and a limiter placed at the edge with queue limits.
Check your understanding
What should be shed first?
Show answer
Low-priority traffic such as crawlers or recommendations.
Practice
Apply this lesson with the module's lab, exercises and quiz.
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