The Mother of All Databases
summary
A legacy relational monolith shows up as single functions joining 200 tables and tables touched by 250 functions, some growing past 50 million records. Practical fixes demonstrate connection multiplexing with RDS Proxy, using Aurora read replicas (15–60 read nodes in examples) and write-forwarding, or building selective replication via DMS CDC into a stream and applying transformations with Kinesis + Lambda into DynamoDB; a wallet demo shows the CDC pipeline replicating updates correctly in real time.
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chapters (9)
- 0:00Database design struggles
- 13:22Unmanaged database growth
- 16:10Microservices and database coupling
- 22:29Databases optimized for purpose
- 23:33Read replicas and reporting
- 27:08Hiding complexity with proxies
- 30:25Data ownership with events
- 37:03Demo of data replication
- 43:51Key takeaways
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