System Design · Interview Question

Which key choice reduces hot-partition risk for sharded writes?

Detailed answer, explanation and code for this interview question. Ideal for System Design interview preparation, coding rounds and viva questions.

Difficulty: MediumType: MCQ

Problem Statement

Which key choice reduces hot-partition risk for sharded writes?

Explanation

Hot spots happen when keys are sequential or skewed. Hashing spreads load evenly across shards. If locality is needed, combine a coarse bucket with a hash suffix to balance.

Code Solution

SolutionRead Only

shard = hash(user_id) % N

Practice Sets

This question appears in the following practice sets:

High-Level Design (HLD) Interview Core

Next Question

More from System Design

Master System Design with our complete collection of questions, tutorials and guides.

Browse Subject View All Questions

Mobile App Now Available

Master Interviews
Anywhere, Anytime

Get the Preplance app for a seamless learning experience. Practice offline, get daily streaks, and stay ahead with real-time interview updates.

Get it on

Google Play

4.9/5 Rating on Store

Which key choice reduces hot-partition risk for sharded writes?

Problem Statement

Explanation

Code Solution

Practice Sets

Related Questions

Which statement best describes the Single Responsibility Principle?

Open–Closed Principle encourages what practice when adding features?

High-Level Design (HLD) typically focuses on which artifacts?

Which UML diagram best captures interactions over time between components?

Which pairing describes a healthy design goal?

More from System Design

Master Interviews
Anywhere, Anytime

Which key choice reduces hot-partition risk for sharded writes?

Problem Statement

Explanation

Code Solution

Practice Sets

Related Questions

Which statement best describes the Single Responsibility Principle?

Open–Closed Principle encourages what practice when adding features?

High-Level Design (HLD) typically focuses on which artifacts?

Which UML diagram best captures interactions over time between components?

Which pairing describes a healthy design goal?

More from System Design

Which key choice reduces hot-partition risk for sharded writes?

Problem Statement

Explanation

Code Solution

Practice Sets

Related Questions

Which statement best describes the Single Responsibility Principle?

Open–Closed Principle encourages what practice when adding features?

High-Level Design (HLD) typically focuses on which artifacts?

Which UML diagram best captures interactions over time between components?

Which pairing describes a healthy design goal?

More from System Design

Master Interviews Anywhere, Anytime

Which key choice reduces hot-partition risk for sharded writes?

Problem Statement

Explanation

Code Solution

Practice Sets

Related Questions

Which statement best describes the Single Responsibility Principle?

Open–Closed Principle encourages what practice when adding features?

High-Level Design (HLD) typically focuses on which artifacts?

Which UML diagram best captures interactions over time between components?

Which pairing describes a healthy design goal?

More from System Design

Master Interviews
Anywhere, Anytime