How indexes work in Distributed Databases, their trade-offs, and challenges

System Design for SDE-2 and above: https://arpitbhayani.me/masterclass System Design for Beginners: https://arpitbhayani.me/sys-design Redis Internals: https://arpitbhayani.me/redis Build Your Own Redis / DNS / BitTorrent / SQLite - with CodeCrafters. Sign up and get 40% off - https://app.codecrafters.io/join?via=arpitbbhayani In the video, I explained how indexing works in a distributed database like DynamoDB and the challenges it brings. I discussed creating different types of indexes, such as global secondary indexes, for efficient querying. By using global secondary indexes, queries can be optimized by directly accessing the required data shards. I also touched on local secondary indexes for specific query patterns. Maintaining indexes can be costly, and the choice between global and local secondary indexes depends on the query requirements and consistency needs. The video ended with a suggestion to explore further on index creation using B+ Trees. # Recommended videos and playlists If you liked this video, you will find the following videos and playlists helpful System Design: https://www.youtube.com/watch?v=o7qLKfILuD8&list=PLsdq-3Z1EPT27BuTnJ_trF7BsaTpYLqst Designing Microservices: https://www.youtube.com/watch?v=JPj6mhVLQN0&list=PLsdq-3Z1EPT0ug8eizS71G6LZb6-4FAFt Database Engineering: https://www.youtube.com/watch?v=-htbah3eCYg&list=PLsdq-3Z1EPT2C-Da7Jscr7NptGcIZgQ2l&pp=gAQBiAQB Concurrency In-depth: https://www.youtube.com/watch?v=2PjlaUnrAMQ&list=PLsdq-3Z1EPT3VjDhjMb5yBsgn0wn2-fjp Research paper dissections: https://www.youtube.com/watch?v=LXhgFAZroG8&list=PLsdq-3Z1EPT2XEJ0AmF02LBK1RFNd-jK8 Outage Dissections: https://www.youtube.com/watch?v=LeT_s-UFw-U&list=PLsdq-3Z1EPT3_Z97svMs6S2y7tv1PcUmc Hash Table Internals: https://www.youtube.com/watch?v=jjW8w8ED3Ns&list=PLsdq-3Z1EPT2UnueESBLReaVSLIo_BuAc Bittorrent Internals: https://www.youtube.com/watch?v=v7cR0ZolaUA&list=PLsdq-3Z1EPT1rNeq2GXpnivaWINnOaCd0 # Things you will find amusing Knowledge Base: https://arpitbhayani.me/knowledge-base Bookshelf: https://arpitbhayani.me/bookshelf Papershelf: https://arpitbhayani.me/papershelf # Other socials I keep writing and sharing my practical experience and learnings every day, so if you resonate then follow along. I keep it no fluff. LinkedIn: https://linkedin.com/in/arpitbhayani Twitter: https://twitter.com/arpit_bhayani Weekly Newsletter: https://arpit.substack.com Thank you for watching and supporting! it means a ton. I am on a mission to bring out the best engineering stories from around the world and make you all fall in love with engineering. If you resonate with this then follow along, I always keep it no-fluff.