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Going global with serverless

Going global with serverless

Marek Kuczynski

June 19, 2019
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  1. © 2019, Amazon Web Services, Inc. or its affiliates. All

    rights reserved. U T R E C H T 1 9 J U N E 2 0 1 9
  2. © 2019, Amazon Web Services, Inc. or its affiliates. All

    rights reserved. Building Global Services with Serverless! Marek Kuczynski Sr Solutions Architect - startups Amazon Web Services marekq
  3. © 2019, Amazon Web Services, Inc. or its affiliates. All

    rights reserved. Before we get started, let’s take a look at some fundamentals.
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    rights reserved. Availability in parallel A = 1 – (1 – Ax)2 Part X Part X
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    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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    rights reserved. Component redundancy increases availability significantly!
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    rights reserved. 21 Geographic Regions 66 Availability Zones (AZs) 4 regions and 12 more Availability Zones announced
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    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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    rights reserved. Multi-AZ architecture Region Availability zone a Availability zone b Availability zone c Application Application Application
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    rights reserved. Multi-region 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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    rights reserved. Serverless components Region Availability zone a Availability zone b Availability zone c Serverless Services
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    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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    rights reserved. Serverless is a spectrum More operations Less operations
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    rights reserved. Why build a multi-region active-active architecture?
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    rights reserved. Improve latency for end-users ~300ms ~140ms
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    rights reserved. Improve availability and disaster recovery 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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    rights reserved. Prerequisites to building a multi-region architecture.
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    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. Distributed System In the presence of a network partition, you must choose between consistency and availability!
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    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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    rights reserved. Secure and reliable global network
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    rights reserved. Amazon Global Network
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    rights reserved. Replicates your data with no impact on database performance Typical cross-region replication latencies below 1 second An Aurora cluster can recover in less than 1 minute even in the event of a complete regional outage Recovery Point Objective (RPO) of 1 second Recovery Time Objective (RTO) of less than 1 minute Amazon Aurora Global Database Designed for globally distributed applications Globally dispersed users Replica (N. America) Replica (Europe) Replica (Asia) Global App Global Table
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    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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    rights reserved. Amazon S3 cross-region replication Bucket with objects Bucket with objects
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    rights reserved. Global routing with Route 53
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    rights reserved. Latency based routing Region Region Application Application
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    rights reserved. Geo-based routing Region us-east-1 Region us-west-2 Application Application
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    rights reserved. Weighted round robin routing Region us-east-1 Region us-west-2 Application Application
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    rights reserved. DNS failover Region us-east-1 Region us-west-2 Application Application
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    rights reserved. Region eu-west-1 Region ap-northeast-1 Global Table https://global.marek.host
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    rights reserved. Region eu-west-1 Region ap-northeast-1 Global Table
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    rights reserved. Region eu-west-1 Region ap-northeast-1 Global Table
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    rights reserved. Region eu-west-1 Region ap-northeast-1 Global Table
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    rights reserved. Region eu-west-1 Region ap-northeast-1 https://global.marek.host Regional API Endpoint Custom Domain Name Regional API Endpoint Custom Domain Name
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    rights reserved. Route53: Traffic Policy
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    rights reserved. Health checks with Route 53
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    rights reserved. Shallow health check Instance or function Cache node Email database Cluster Are you healthy? yes
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    rights reserved. Shallow health check Instance or function Cache node Email database Cluster Are you healthy? yes
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    rights reserved. Deep health check Instance or function Cache node Email database Cluster Are you healthy? yes Are you healthy? yes yes yes yes
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    rights reserved. Deep health check Instance or function Cache node Email database Cluster Are you healthy? no Are you healthy? no yes yes yes CACHE RESULTS!!!
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    rights reserved. AWS Global Accelerator
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    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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    rights reserved. Region eu-west-1 Region ap-northeast-1 Global Table 2x Anycast IPs Global Accelerator
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    rights reserved. Region eu-west-1 Region ap-northeast-1 Global Table
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    rights reserved. Region eu-west-1 Region ap-northeast-1 Global Table
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    rights reserved. Region eu-west-1 Region ap-northeast-1 Global Table
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    rights reserved. Region eu-west-1 Region ap-northeast-1 Global Table 2x Anycast IPs Global Accelerator Voilà!
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    rights reserved. https://medium.com/@adhorn Further reading on this topic
  49. Thank you! © 2019, Amazon Web Services, Inc. or its

    affiliates. All rights reserved. Marek Kuczynski marekq