How does Uber handle billions of payments without missing a single transaction? In this video, we dive into Uber's innovative solution for managing their massive payment infrastructure. Uber Engineering Blogs - - - We explore: - Uber's journey from a monolith to microservices architecture - The challenges they faced with their initial payment system - Introduction of the Job/Order based system - Creation of LedgerStore - Uber's custom ledger database - The importance of immutability in financial transactions - Uber's massive data migration process involving 250 billion records - The Shadow Writer technique for seamless database transition - Different types of indexes used by Uber (Strongly consistent, Eventual consistent, Time-range) - How Uber manages over 2 trillion indexes LINKS --- MY 12K+ DISCORD 💬 CONNECT WITH ME ON SOCIAL 📸 Instagram: 🎚TikTok: @lewismenelaws 🐣 Twitter: My gear 💻 ----- TIMESTAMPS 0:00 Intro 0:20 Ubers Problem… 1:16 How the System was Failing 1:47 Rebuilding Their Payment System 2:46 Databases… for Money? 3:26 Why Databases Can’t Handle Finances Correctly 4:48 Rebuilding their Payment Infrastructure (LedgerStore) 5:49 Ubers Big Big Problem…. (Migration) 6:36 How The Migration Worked 7:11 The Big Big Migration 8:31 Leap of Faith 9:01 Implementing Trillions of Indexes 9:23 What is an Index? 10:08 The 3 Types of Indexes 11:57 What we can learn from Uber 12:42 Thanks for Watching