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low-level-design-messaging-queue-pub-sub's Introduction

Low Level System Design - PubSub Messaging Queue

Video Explanation

https://youtu.be/4BEzgPlLKTo

Problem statement

Check here

Project requirements

  • JDK 1.8
  • Maven

APIs supported in queue

  • createTopic(topicName) -> topicId
  • subscribe(topicId, subscriber) -> boolean
  • publish(topicId, message) -> boolean
  • readOffset(topidId, subscriber, offset) -> boolean

low-level-design-messaging-queue-pub-sub's People

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low-level-design-messaging-queue-pub-sub's Issues

Question: Why use one thread per subscriber?

First of all, thanks for all your LLD implementations. These resources are really helpful. I am new to concurrency and multithreading. So please help me out.

I was thinking about your design decision to use one thread per subscriber. How will this scale if we have 10k+ subscribers? Is thread pool a better option?

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