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#Replication
1 guides~8 min totalupdated Oct 20, 2026
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Database Sharding and Replication Explained: Copy for Reads, Split for Writes (2026)
Database sharding and replication explained for system design interviews: copies vs splits, sync vs async, shard keys, hot spots, resharding, and when not to shard.
Intermediate · 8 min
Software Architecture
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