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Slave Promotion
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Classroom Contents
Building Financial Systems on Eventually Consistent DBs
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- 1 Intro
- 2 Billing Engineering
- 3 Netflix operates out of multiple AWS regions to ensure availability
- 4 Single Master Single Point of Failure
- 5 Read replicas
- 6 Slave Promotion
- 7 We needed something better...
- 8 But it's not perfect, especially for a financial system
- 9 So how do you build a financial system on top of it?
- 10 Lightweight Transactions in Cassandra
- 11 Update Consistency With Optimistic Locking
- 12 Two Scenarios
- 13 With Cassandra, last write wins
- 14 How does Cassandra achieve fault tolerance?
- 15 Local Quorum vs Each Quorum
- 16 Insert Consistency
- 17 Some things to consider
- 18 Minimizing inconsistencies
- 19 Building a financial system on top of Cassandra
- 20 Our object model needed relations
- 21 We built a poor man's relational schema
- 22 Understand performance implications before using collection types
- 23 Querying across rows
- 24 Recap
