Comparisons

Sharding vs Partitioning vs Replication

Venn Diagrams · made in Skemio

A 3-set Venn diagram comparing Sharding, Partitioning, and Replication, highlighting distributed nodes, split single tables, full dataset copies, and their intersections.
A 3-set Venn diagram comparing Sharding, Partitioning, and Replication, highlighting distributed nodes, split single tables, full dataset copies, and their intersections.
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What it shows

  • Partitioning splits tables locally on one node to keep index scans fast.
  • Sharding distributes split rows across multiple independent machines.
  • Replication copies identical data sets to provide failover and read scale.

The takeaway

Partition to tame table size, shard to scale writes across hosts, and replicate for high availability.

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