Failure domains and blast radius
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
limit how much one fault can break.
Planned topics
- A failure domain is a set of things that fail together: a node, an AZ, a region, a shared cluster, a team's release.
- Blast radius: how many users or features a fault affects.
- Reduce it with isolation: bulkheads, cells, separate pools, staged rollouts.
- Shared components make bigger domains than diagrams suggest.
Draft outline details
Demonstration
a diagram where two services share a database cluster, enlarging their failure domain.
Check your understanding
What is blast radius?
Show answer
How much of the system or how many users one fault affects.
Practice
Apply this lesson with the module's lab, exercises and quiz.
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