Interview question. A collaboration product serves users in Europe and the United States. Both regions must accept writes during normal operation, even when one is slow. Two users may update the same document within milliseconds. Design write ownership, conflict handling, and recovery if the regions cannot communicate.
Reliability & Failure Recovery · Staff
How would you design active-active writes across two regions without losing updates?
Designing Reliable Multi-Region Systems · Part 3 of 6 · 6 min read
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