Interview Bootcamp
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Resilience and Error Handling

An online store shows product reviews from a separate reviews service. One afternoon, the reviews service becomes slow. Each call to it now takes 30 seconds instead of 50 ms.

A few minutes later, the whole store stops loading. Even the checkout page fails, and checkout does not use reviews at all.

This lesson answers two questions. How does a system keep working when some of its parts fail? And how do we stop one failure from spreading to everything else?

Failures Are Normal

In a large system, some part is always failing

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S

sidpssp

· 2 years ago

notes

Aastha Bist

Aastha Bist

· 2 years ago

Under retry and backoff strategies, I did not understand this particular statement: "This can increase the likelihood of successful operation completion while preventing excessive load on the system during failure scenarios."

Can someone please provide more context/examples related to what this means?

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