Case Studies > Expedia Hosted by 2lemetry Through AWS

Expedia Hosted by 2lemetry Through AWS

 Expedia Hosted by 2lemetry Through AWS - IoT ONE Case Study
Technology Category
  • Cybersecurity & Privacy - Identity & Authentication Management
  • Infrastructure as a Service (IaaS) - Cloud Computing
  • Infrastructure as a Service (IaaS) - Cloud Storage Services
  • Platform as a Service (PaaS) - Application Development Platforms
Use Cases
  • Cybersecurity
The Challenge

 

Expedia is committed to continuous innovation, technology, and platform improvements to create a great experience for its customers. The Expedia Worldwide Engineering (EWE) organization supports all websites under the Expedia brand. Expedia began using Amazon Web Services (AWS) in 2010 to launch Expedia Suggest Service (ESS), a typeahead suggestion service that helps customers enter travel, search, and location information correctly. According to the company’s metrics, an error page is the main reason for site abandonment. Expedia wanted global users to find what they were looking for quickly and without errors. At the time, Expedia operated all its services from data centers in Chandler, AZ. The engineering team realized that they had to run ESS in locations physically close to customers to enable a quick and responsive service with minimal network latency.

The Customer
About The Customer
The Solution

 

Expedia considered on-premises virtualization solutions as well as other cloud providers, but ultimately chose Amazon Web Services (AWS) because it was the only solution with the global infrastructure in place to support Asia Pacific customers. “From an architectural perspective, infrastructure, automation, and proximity to the customer were key factors,” explains Murari Gopalan, Technology Director. “There was no way for us to solve the problem without AWS.”

Operational Impact
  • [Data Management - Elasticity & Scalability]
    Expedia provisions Hadoop clusters using Amazon Elastic Map Reduce (Amazon EMR) to analyze and process streams of data coming from Expedia’s global network of websites, primarily clickstream, user interaction, and supply data, which is stored on Amazon Simple Storage Service (Amazon S3). Expedia processes approximately 240 requests per second. “The advantage of AWS is that we can use Auto Scaling to match load demand instead of having to maintain capacity for peak load in traditional datacenters,” comments Gopalan. Expedia uses AWS CloudFormation with Chef to deploy its entire front and backend stack into its Amazon Virtual Private Cloud (Amazon VPC) environment. Expedia uses a multi-region, multi-availability zone architecture with a proprietary DNS service to add resiliency to the applications. Figure 2 demonstrates the architecture of the GDE service on AWS.
  • [Data Management - Data Security]
     To simplify the management of GDE, Expedia developed an identity federation broker that uses AWS Identity and Access Management(AWS IAM) and the AWS Security Token Service (AWS STS). The federation broker allows systems administrators and developers to use their existing Windows Active Directory (AD) accounts to single sign-on (SSO) to the AWS Management Console. In doing so, Expedia eliminates the need to create IAM users and maintain multiple environments where user identities are stored. Federation broker users sign into their Windows machines with their existing Active Directory credentials, browse to the federation broker, and transparently log into the AWS Management Console. This allows Expedia to enforce password and permissions management within their existing directory and to enforce group policies and other governance rules. Additionally, if an employee ever leaves the company or takes a different role, Expedia simply make changes to Active Directory to revoke or changes AWS permissions for the user instead of inside of AWS.

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