How to Check if a User Exists Among Billions! - 4 MUST Know Strategies

How to Check if a User Exists Among Billions! - 4 MUST Know Strategies In this video, we’ll explore how platforms like Twitter, Facebook, and Instagram efficiently check if a username or email is already in use, even with billions of users. Learn how direct database queries, caching, and Bloom filters work together to optimize performance and minimize resource usage. We'll dive into real-world examples and demonstrate how to implement these techniques in Java. Whether you're prepping for system design interviews or looking to scale your own system, this video provides practical insights into handling user checks at massive scale. Code Link - https://github.com/TechCareerBytes/learning/blob/main/Check%20User%20Exists.zip Caching In Distributed Systems - https://youtu.be/n9wXysIJ7Ac #UserCheck #BloomFilters #Caching #SystemDesign #ScalableArchitecture Don't forget to like 👍, share 📤 this video, and subscribe 📥 for more insightful content on career growth and technical skills.📈 Stay tuned for our upcoming content on the latest advancements in the world of technology, data processing, and career development. Let's embark on this knowledge-packed adventure together! Tech&Career Bytes: Empowering software professionals with insights on career, leadership, and technology trends for success.🚀 Tech&Career Bytes is your gateway to insights and guidance from a seasoned software professional with over two decades of industry experience. Starting as a developer and rising to leadership positions in a renowned product-based organization, I've played pivotal roles in conceiving, designing, developing, and launching numerous products. Must READ for Continuous Learning: • Building Microservices - https://amzn.to/4bFM7Ql • Mastering System Design: https://bit.ly/3S05RGS • Head First Design Patterns: https://amzn.to/3uDtN9F • Clean Code: A Handbook of Agile Software Craftsmanship: https://bit.ly/470W9Zf • Java Concurrency in Practice: https://bit.ly/486vtqz • Java Performance: The Definitive Guide:https://bit.ly/484BAMk • Designing Data-Intensive Applications: https://bit.ly/3uDu4cH • Designing Distributed Systems: https://amzn.to/487C7NV • Clean Architecture: https://bit.ly/3RwMiWx • Kafka – The Definitive Guide: https://amzn.to/3NaWUHZ • Becoming An Effective Software Engineering Manager: https://amzn.to/3NHewv8 #systemdesign #softwareengineer #interviewpreparation #DataProcessing #TechEvolution #CareerGrowth #SoftwareEngineering #CareerDevelopment #TechSkills #Leadership #http #https #api #system design #software engineer Connect with me on social media for more: LinkedIn: https://www.linkedin.com/in/roopa-kushtagi-6533912/ 🔗 DZone: https://dzone.com/users/2762271/roopakushtagi.html Medium: https://medium.com/@roopa.kushtagi 📝 Instagram: https://instagram.com/techcareer.bytes Buy Me A Coffee: https://buymeacoffee.com/techcareero Patreon: https://patreon.com/user?u=117561535