Managing petabyte-scale document databases while maintaining 99.999% availability demands zero-downtime data migrations. Stripe's Data Movement Platform powers DocDB, its internal DBaaS built on MongoDB, enabling online chunk migrations across thousands of shards via B-tree insertion sorting, Kafka-backed CDC oplog replication, and versioned traffic gating. #Stripe #DocDB #ZeroDowntime #DatabaseMigration #SRE #MongoDB #DistributedSystems #DataEngineering #FinOps #HighAvailability
The MERN stack — MongoDB, Express, React, and Node.js — is a popular choice for full-stack JavaScript development. This guide shows you how to build a MERN application and deploy the backend as serverless functions, reducing infrastructure overhead while maintaining the flexibility of Express-style routing.