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| Concept | Why It’s Top | Xu’s Example | |--------|--------------|----------------| | Consistent hashing | Solves rehashing in distributed caches | Adding/removing cache servers without massive key remapping | | Read/write separation | Scales databases using master-slave replication | Twitter: followers read from replicas, tweets write to master | | Eventual consistency vs. strong consistency | Trade-off between latency and data accuracy | Amazon shopping cart (eventual) vs. bank transfer (strong) | system design interview alex wu pdf top
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Alex Xu’s Proposed Architecture:
Yes, but with an asterisk.