Fastly > Case Studies > LaunchDarkly's Real-Time Feature Management with Fastly

LaunchDarkly's Real-Time Feature Management with Fastly

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Technology Category
  • Analytics & Modeling - Real Time Analytics
  • Platform as a Service (PaaS) - Application Development Platforms
Applicable Industries
  • Cement
  • Construction & Infrastructure
Applicable Functions
  • Product Research & Development
Use Cases
  • Traffic Monitoring
  • Transportation Simulation
Services
  • Cloud Planning, Design & Implementation Services
  • System Integration
The Challenge
LaunchDarkly, a feature management platform, was facing challenges in the fast-paced software development lifecycle. The company needed to balance the competing needs of speed and security. Speed was essential to improve products and keep users engaged, while security was necessary to ensure deployments did not cause disruptions or drive users to competitor apps. The company also needed to ensure that features could be rolled out without friction, or they risked their product's position in the app store rating. Additionally, LaunchDarkly required a solution to protect user experience in case of a disaster, without having to roll back code.
About The Customer
LaunchDarkly is a feature management platform that helps enterprises deploy new features more quickly while minimizing risk. The company focuses on delivering consistent user experiences with lightning-fast performance. LaunchDarkly serves 6 trillion feature flags daily, reaching 14 million mobile devices and browsers and 4 million servers worldwide. The company's customers include developers and product teams who need to deploy code and release features at their own pace, without compromising on speed or user experience.
The Solution
LaunchDarkly integrated Fastly's edge cloud platform into their infrastructure. This allowed them to serve 6 trillion feature flags daily, reaching 14 million mobile devices and browsers and 4 million servers worldwide. Fastly's Instant Purge capability was particularly beneficial, as it immediately stopped delivering cached versions of content and started serving fresh content as soon as a purge request was issued. This significantly increased update speeds. Fastly's shielding with request collapsing was also used for faster page loads and better overall performance. This feature consolidated all cache miss requests into a single request, protecting the origin from a barrage of server requests. Furthermore, LaunchDarkly's SDK was embedded into applications, allowing development teams to deploy code whenever they were ready, and product teams to release features when they were ready.
Operational Impact
  • The integration of Fastly's edge cloud platform into LaunchDarkly's infrastructure has resulted in significant operational improvements. The company can now deploy new features more quickly while minimizing risk, ensuring consistent user experiences with lightning-fast performance. The Instant Purge capability has significantly increased update speeds, while the shielding with request collapsing has improved page load times and overall performance. The ability to handle a surge of 50,000 requests per second has also demonstrated the robustness of the system. Furthermore, the use of Fastly's real-time streaming logs has made it easier for LaunchDarkly to identify which customers need to upgrade their software.
Quantitative Benefit
  • LaunchDarkly serves 6 trillion feature flags daily, reaching 14 million mobile devices and browsers and 4 million servers worldwide.
  • Fastly's Instant Purge capability increased update speeds by 90%.
  • LaunchDarkly was able to handle a surge of 50,000 requests per second during a peak that lasted several hours.

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