MongoDB Tutorial 0/120 lessons ~6 min read Lesson 87
Sharding Introduction
Sharding partitions a collection across multiple replica sets, letting you scale beyond a single machine's storage or throughput.
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Focus
2 guided sections
Practice signal
Concept-first lesson
Career prep
Foundation builder
Introduction
Sharding partitions a collection across multiple replica sets, letting you scale beyond a single machine's storage or throughput. Choose the shard key carefully — it can't be changed easily and dictates write distribution.
Syntax reference
js
sh.shardCollection("shop.orders", { customerId: "hashed" });
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