How Uber Migrated Financial Data from DynamoDB to Docstore
Introduction: Each day, Uber moves millions of people around the world and delivers tens of millions of food and grocery orders. This generates a large number of financial transactions that need to be stored with provable completeness, consistency, and compliance. LedgerStore is an immutable, ledger...
Hasnain says:
This is how we measured the success of this critical project:
* Not a single production incident, given how critical money movement is for Uber
* We didn’t have to rollback the migration for a single table
* We backfilled 250 billion unique records and not a single data inconsistency has been detected so far, with the new architecture in production for over 6 months
* Our new data model reduced complexity in the query path, and we observed latency improvements in both read and write path on Docstore
* The project also resulted in technology consolidation, reducing external dependencies
From a business impact perspective, operating LedgerStore is now very cost effective due to reduced spend on DynamoDB. The estimated yearly savings are $6 million per year, and we also laid the foundation for such other future initiatives.
Posted on 2024-07-04T22:45:32+0000