aws summit nordics - architecting for high availability

Architecting For High Availability

Guy Ernest

Solutions Architect

AWS BUILDING BLOCKS Inherently Fault-Tolerant

Services Fault-Tolerant with the

right architecture Amazon S3

Amazon DynamoDB

Amazon CloudFront

Amazon SWF

Amazon SQS

Amazon SNS

Amazon SES

Amazon Route53

Elastic Load Balancing

AWS IAM

AWS Elastic Beanstalk

Amazon

ElastiCache

Amazon EMR

Amazon Redshift

Amazon CloudSearch

Amazon EC2

Amazon EBS

Amazon RDS

Amazon VPC

1. DESIGN FOR FAILURE

2. MULTIPLE AVAILABILITY ZONES

3. SCALING

4. LOOSE COUPLING

#1 DESIGN FOR FAILURE

●○○○

« Everything fails all the time »

Werner Vogels

CTO of Amazon

AVOID SINGLE POINTS OF FAILURE

AVOID SINGLE POINTS OF FAILURE

ASSUME EVERYTHING FAILS,

AND WORK BACKWARDS

YOUR GOAL

Applications should continue to function

HEALTH CHECKS

#2 MULTIPLE

AVAILABILITY ZONES ●●○○

AVAILABILITY ZONES

US-WEST (N. California) EU-WEST (Ireland)

ASIA PAC (Tokyo)

ASIA PAC

(Singapore)

US-WEST (Oregon)

SOUTH AMERICA (Sao Paulo)

US-EAST (Virginia)

GOV CLOUD

ASIA PAC (Sidney)

AMAZON RDS

MULTI-AZ

AMAZON ELB AND

MULTIPLE AZs

#3 SCALING

●●●○

AMAZON CLOUDWATCH MONITORING FOR AWS RESOURCES

AUTO SCALING SCALE UP/DOWN EC2 CAPACITY

AUTO SCALING SCALE UP/DOWN EC2 CAPACITY

HEALTH CHECKS

+ AUTO SCALING

HEALTH CHECKS

+ AUTO SCALING

=

SELF-HEALING

#4 LOOSE

COUPLING ●●●●

BUILD LOOSELY COUPLED SYSTEMS

The looser they are coupled, the bigger they scale,

the more fault tolerant they get…

PUBLISH

& NOTIFY RECEIVE TRANSCODE

AMAZON SQS SIMPLE QUEUE SERVICE

PUBLISH

& NOTIFY RECEIVE TRANSCODE

VISIBILITY TIMEOUT

BUFFERING

CLOUDWATCH METRICS FOR AMAZON SQS

+ AUTO SCALING

1. DESIGN FOR FAILURE

2. MULTIPLE AVAILABILITY ZONES

3. SCALING

4. LOOSE COUPLING

1. DESIGN FOR FAILURE

2. MULTIPLE AVAILABILITY ZONES

3. SCALING

4. LOOSE COUPLING

1. DESIGN FOR FAILURE

2. MULTIPLE AVAILABILITY ZONES

3. SCALING

4. LOOSE COUPLING

1. DESIGN FOR FAILURE

2. MULTIPLE AVAILABILITY ZONES

3. SCALING

4. LOOSE COUPLING

YOUR GOAL

Applications should continue to function

IT’S ALL ABOUT

CHOICE BALANCE COST & FAULT-TOLERANCE

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