Availability, Latency, and Cost - Withstanding Regional Outages

Explore a conference talk on achieving high availability and low latency through multi-region deployment strategies. Dive into Netflix's journey of transforming regional resiliency from a cost driver to a strategic advantage. Learn about algebraic models, code practices, and incident management playbooks developed to refine multi-region operations at scale. Discover key considerations for determining the optimal number of regions, user steering methods, and failover procedures. Gain insights into the human and system dynamics involved in managing regional outages, and understand how Netflix turned routine failovers into a seamless process. Examine the architectural decisions, sharding techniques, and replication strategies that contribute to improved availability and performance.

Introduction
Agenda
Netflix
Island Model
Fear
Recovery vs Prevention
High Availability Overview
Algebraic Models
Latency
Cumulative Distribution Function
Cost
Architecture
Sharding
Region Replication
Closing Thoughts
Questions
Summary
Cost Function
Model Change
Alternatives