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© 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. Julio Faerman @faermanj Building Global Services with Serverless! Adrian Hornsby @adhorn

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Global infrastructure for global applications

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Availability Fundamentals

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Availability in parallel A = 1 – (1 – Ax)2 Part X Part X

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Availability in parallel Component Availability Downtime X 99% (2-nines) 3 days 15 hours Two X in parallel 99.99% (4-nines) 52 minutes Three X in parallel 99.9999% (6-nines) 31 seconds

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Component redundancy increases availability significantly!

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. AWS Global Infrastructure

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. AWS Region and availability zones Region Availability zone a Availability zone b Availability zone c data center data center data center data center data center data center data center data center data center

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Multi-AZ Architecture Region Availability zone a Availability zone b Availability zone c Application Application Application

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Multi-Region Architecture Region Availability zone a Availability zone b Availability zone c Application Region Availability zone a Availability zone b Availability zone c Application Application Application Application Application

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Serverless components Region Availability zone a Availability zone b Availability zone c Serverless Services

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Why serverless components?? No provisioning, no management Pay for value Fault Tolerant and Automatic scaling Highly available and secure

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. AWS operational responsibility models On-Premises Cloud Less More Compute Virtual Machine EC2 Elastic Beanstalk AWS Lambda Fargate Databases MySQL MySQL on EC2 RDS MySQL RDS Aurora Aurora Serverless DynamoDB Storage Storage S3 Messaging ESBs Amazon MQ Kinesis SQS / SNS Analytics Hadoop Hadoop on EC2 EMR Elasticsearch Service Athena

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Why build a multi-region active-active architecture?

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Improve latency for end-users ~300ms ~140ms

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Recover from failures Applications in US West Applications in US East Users from San Francisco Users from New York Service 1 Service 2 Service 3 Service 4 Service 1 Service 2 Service 3 Service 4

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Building a multi-region architecture.

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. CAP Theorem Consistency Availability Partition Tolerance Data is consistent. All nodes see the same state. Every request is non-failing. Service still responds as expected if some nodes crash or get isolated. Distributed System In the presence of a network partition, you must choose between consistency and availability!

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Embrace eventual consistency … if no new updates are made to a given data item, eventually all accesses to that item will return the last updated value. Availability An eventually consistent system can return any value before it converges!! https://en.wikipedia.org/wiki/Eventual_consistency Distributed System Every request is non-failing.

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Amazon Global Network

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Data replication.

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Build high performance, globally distributed applications Low latency reads & writes to locally available tables Disaster proof with multi-region redundancy Easy to set up and no application rewrites required Globally dispersed users Replica (N. America) Replica (Europe) Replica (Asia) Global App Global Table Amazon DynamoDB Global Tables Fully managed, multi-master, multi-region database

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Amazon S3 cross-region replication Bucket with objects Bucket with objects

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Traffic Management

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Global routing with Route 53

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Latency based routing Region Region Application Application

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Geo-based routing Region us-east-1 Region us-west-2 Application Application

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Weighted round robin routing Region us-east-1 Region us-west-2 Application Application

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. DNS failover Region us-east-1 Region us-west-2 Application Application

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. AWS Global Accelerator

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Global Accelerator Application Load Balancer Lambda Function DynamoDB Global Table Route 53 Latency Routing API Gateway Regional API Lambda Function DynamoDB Global Table

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Region us-east-1 Region us-west-2 Global Table https://global.adhorn.me

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Region us-east-1 Region us-west-2 Global Table

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Region us-east-1 Region us-west-2 Global Table

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Region us-east-1 Region us-west-2 https://globalddb.adhorn.me Regional API Endpoint Custom Domain Name Regional API Endpoint Custom Domain Name API Gateway

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Region us-east-1 Region us-west-2 Global Table

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Route53: Traffic Policy

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Health checks with Route 53

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Region us-east-1 Region us-west-2 Global Table https://globalddb.adhorn.me Voilà!

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Region eu-central-1 Region eu-west-2 Global Table 2x Anycast IPs Global Accelerator

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Region eu-central-1 Region eu-west-2 Global Table

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Region eu-central-1 Region eu-west-2 Global Table

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Region eu-central-1 Region eu-west-2 Global Table

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. Region eu-central-1 Region eu-west-2 Global Table 2x Anycast IPs Global Accelerator Voilà!

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. DNS Issues

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© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved. https://medium.com/@adhorn

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© 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. Thank you! Julio Faerman @faermanj Adrian Hornsby @adhorn