Purpose-Built Databases for Modern Applications
summary
AWS describes choosing purpose-built stores for microservices and gives concrete numbers and demos: 7.11 trillion DynamoDB calls during Prime Day, peaking at 45.4 million requests per second, DynamoDB promises single-digit millisecond reads and autoscaling; Aurora runs ~1,900 Postgres instances with 148 billion transactions and 609 TB stored, and a demo shows cross-region replication at ~125 ms global replication lag (Oregon→Singapore). DocumentDB emulates MongoDB 3.6 APIs, ElastiCache offers Redis features, Neptune supports Gremlin/SPARQL, Timestream targets time-series, QLDB is an immutable cryptographic ledger, and Managed Cassandra preserves CQL compatibility.
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chapters (19)
- 0:00Introduction
- 0:55What is a modern application
- 4:17Amazon Prime Day
- 5:56Microservices
- 7:18Purposebuilt databases
- 8:35Why use purposebuilt databases
- 9:08Capital One example
- 9:53Types of Databases
- 10:34Amazon Aurora
- 12:24Demo
- 15:42DynamoDB
- 18:10Amazon DocumentDB
- 19:29Amazon Elasticash
- 21:15Amazon Neptune
- 22:38Amazon Timestream
- 23:48Amazon Quantum Ledger Database
- 25:00Amazon Managed Apache Cassandra
- 25:43AWS Managed Services
- 28:16Get Started
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