How Does Consistent Hashing | Algorithms You Should Know #1 Work?

Consistent hashing is like having a super-smart friend who always knows where to put your toys so they never get lost.

Imagine you have 10 toy boxes in your room. Every time you get a new toy, your smart friend picks the best box for it based on its color or size, and keeps the same rule each time. That way, your toys stay organized, and you don’t have to search all over the room when you want one.

Now imagine you add two more toy boxes. With a regular friend, they might start putting your red cars in new boxes, which could mean you have to look in all the boxes to find them, it's confusing!

But with your super-smart friend using consistent hashing, only a few toys need to move, most stay where they are. It’s like when your friend adds two more boxes but still uses their favorite rule for where each toy goes.

This keeps things simple and makes finding toys faster, even when you have more boxes!