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
https://www.uber.com/en-CA/blog/how-l...
https://www.uber.com/en-CA/blog/dynam...
https://www.uber.com/en-CA/blog/money...

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


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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