Running High Availability Drupal Websites with Acquia and AWS

Miles WardSr. Solutions ArchitectAmazon Web Services

John O’KeefeSr. Director , Operations

Acquia

Jess IandiorioSr. Director, Cloud Product MarketingAcquia

Agenda

• Amazon Web Services:• Building Fault-Tolerant Applications in the Cloud• Surmounting HA Barriers• AWS Stack and Availability Zones

• Acquia• Building Fully Redundant, Fault-Tolerant environments• Acquia Managed Cloud stack built on Amazon EC2

• Q&A

Faults? Facilities

Hardware

Networking

Code

People

What is “Fault-Tolerant”?

Degrees of risk mitigation - not binary

Automated

Tested!

Old School Fault-Tolerance: Build Two

No Up-Front Capital

Expense

Pay Only for What You

Use

Self-Service Infrastructure

Easily Scale Up and Down

Improve Agility & Time-to-

Market

Low Cost

Cloud Computing Benefits

Deploy

No Up-Front HA Capital Expense

Pay for DR Only When You Use it

Self-Service DR

Infrastructure

Easily Deliver Fault-Tolerant Applications

Improve Agility & Time-to-Recovery

Low Cost Backups

Cloud Computing Fault-Tolerance Benefits

Deploy

The benefits translate!

AWS Cloud allows Overcast Redundancy

Have the shadow duplicate of your infrastructure ready to go when you need it…

…but only pay for what you actually use

Old Barriers to HA are now Surmountable

Cost

Complexity

Expertise

AWS Building Blocks: Two Strategies

Inherently fault-tolerant services

Services that are fault-tolerant with the right architecture

S3SimpleDb

DynamoDBCloudfront

SWF, SQS, SNS, SESRoute53

Elastic Load BalancerElastic Beanstalk

ElastiCacheElastic MapReduce

IAM

Amazon EC2VPC EBSRDS

The Stack:

Resources

Deployment

Management

Configuration

Networking

Facilities

Geographies

The Stack:

EC2 Instances

Amazon Machine Images

CW Alarms - AutoScaling

Cloudformation - Beanstalk

Route53 – ElasticIP – ELB

Availability Zones

Regions

Regional Diversity

Use Regions for:

Latency• Customers• Data Vendors• Staff

Compliance

Disaster Recovery

… and Fault Tolerance!

Proper Use of Multiple Availability Zones

107.22.18.45 isn’t fault-tolerant but 50.17.200.146 is: EIP

Elastic Load Balancing

Automated DNS: Route53

New! Latency-Based Routing

Network Fault-Tolerance Tools

Cloudformation – Elastic Beanstalk

Q: Is your stack unique?

Cloudwatch – Alarms – AutoScaling

AMI’s

Maintenance is critical

Alternatives: Chef, Puppet, cfn-init, etc.

New! When in doubt: 64-bit

Replicate for DR

EC2 Instances

Consistent, reliable building block

100% API controlled

Reserved Instances

EBS

Immense Fleet Scale

New EC2 VPC feature: Elastic Network Interface

Up to 2 Addresses

Span Subnets

Attach/Detach

Public or Private

Example: a “fork-lifted” app

Example: Fault-Tolerant

Why mess with all of that?

Acquia

High Availability for Drupal Sites

Designing a HA Infrastructure

• It’s like Noah’s Ark – 2 of Everything• Automate Scaling Quickly and Reliably• Leverage Amazon Availability Zones• Select Reliable Synchronization Technologies

• mySQL Replication• Gluster• “Trust but Verify”

Managed Cloud: HA Infrastructure

Load Balancers• Elastic IP addresses• Varnish Cache• Nginx for load balancing

Web Servers• Drupal-tuned• Any number/size of servers

Database• MySQL 5.5• Master-master replication

File system• High Availability file system via

GlusterFS• POSIX compatible

DB

FS

Web Server

Load Balancer

Web Server

DB

FS

If Availability is Your Lifeblood – Consider Multi-Region Failover• Run Your Site From at Least Two AWS Regions• Use an Enterprise-class Database Replication Technology – Tungsten from Continuent

• Implement a Content Distribution Network (CDN) • Durability• Manageability• Security

Managed Cloud: Regions

AWS Regions

US West(Northern California)

US East(Northern Virginia)

Europe(Ireland)

Asia Pacific

(Singapore)

Asia Pacific(Tokyo)

US West(Oregon)

South America(Sao Paulo)

GovCloud(US ITAR Region)

Managed Cloud: HA Infrastructure

Availability Zone 1

Load Balancer

Availability Zone 2

Standby Load Balancer

Database

File System

Web Server

Active Load Balancer

Web Server

Web Server

Web Server

Database

File System

Nothing is Irreplaceable

• All Components of the Platform Can Tolerate Failure

• Create Failures – Netflix’s “Chaos Monkey”• General Best Practices:

• Disaster recovery• Replication• Backups

How is Managed Cloud Different?

Infrastructure & Application Health

Acquia Operations Team

Security Scanning

Acquia Security Team

Third party tools

Customer Team

Managed Cloud

Worry free, Enterprise-class Drupal hosting

www.acquia.com/products-services/acquia-managed-cloud

Questions• For more information visit: http://www.acquia.com

• Contact us: sales@acquia.com or 888.9.ACQUIA

• Follow us: @acquia

• Comments welcome:• Jess.iandiorio@Acquia.com• John.Okeefe@Acquia.com • miward@amazon.com Today’s webinar recording will be posted to:http://acquia.com/resources/recorded_webinars