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URL Shortener

Saved 02:39 In progress

Choose the policy you would defend in a design review. Choices save as you go.

1.How do you allocate short codes?

Truncate the original URLRandom Base62 with a unique constraint and collision retryUse the current second as the code

2.How should the cache behave?

Cache forever, including expired linksCache-aside with TTL bounded by link expiryCache only writes

3.What happens if analytics is unavailable?

Return 500 on every redirectWait for the analytics workerRedirect and use a bounded event queue with a documented loss policy

Trade-offs, failure cases and tests

Explain a rejected alternative, a failure mode and how you would test the design. At least 80 characters for the completeness check.

0 characters