Distributed Systems — Sharding

This is the third story in distributed systems, you can read the others here.

Sharding is the basis of the distribution systems, without sharding DS can simply not exists (for the most part..). Sharding is one of the easiest and trickiest things to explain and understand. It is at the crux of NoSql databases.

When i interview candidates about No-Sql and DS, one of the things i ask in detail is sharding? Many people just blunt out that dividing data is sharding, although that is technically ok, but i can also divide data into multiple Rdbms tables …