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EPISODE · Jun 17, 2026 · 7 MIN

Why Database Caching Layer Design Prevents Costly Failures

from Database Tech with Fexingo: SQL, NoSQL, and Data Storage Conversations · host Fexingo

Database caching can save millions of dollars in compute costs—or cause catastrophic failures if designed poorly. Lucas and Luna dive into the infamous 2020 Fastly CDN outage, where a single caching misconfiguration took down major websites for an hour, and contrast it with the layered caching strategies used by companies like Cloudflare and Netflix. They explain the difference between write-through, write-around, and write-back caches, and why cache invalidation is one of the hardest problems in engineering. Tune in to learn how a well-designed caching layer can reduce database load by 80% without breaking your application. #DatabaseCaching #CacheInvalidation #FastlyOutage #WriteThroughCache #WriteBackCache #WriteAroundCache #LayeredCaching #Cloudflare #Netflix #CDN #DatabasePerformance #TechPodcast #DatabaseTech #FexingoBusiness #BusinessPodcast #SoftwareEngineering #DataStorage #CacheDesign Keep every episode free: buymeacoffee.com/fexingo

Episode metadata supplied by the publisher feed · Published Jun 17, 2026

What this episode covers

Database caching can save millions of dollars in compute costs—or cause catastrophic failures if designed poorly. Lucas and Luna dive into the infamous 2020 Fastly CDN outage, where a single caching misconfiguration took down major websites for an hour, and contrast it with the layered caching strategies used by companies like Cloudflare and Netflix. They explain the difference between write-through, write-around, and write-back caches, and why cache invalidation is one of the hardest problems in engineering. Tune in to learn how a well-designed caching layer can reduce database load by 80% without breaking your application. #DatabaseCaching #CacheInvalidation #FastlyOutage #WriteThroughCache #WriteBackCache #WriteAroundCache #LayeredCaching #Cloudflare #Netflix #CDN #DatabasePerformance #TechPodcast #DatabaseTech #FexingoBusiness #BusinessPodcast #SoftwareEngineering #DataStorage #CacheDesign Keep every episode free: buymeacoffee.com/fexingo

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How long is this episode of Database Tech with Fexingo: SQL, NoSQL, and Data Storage Conversations?

This episode is 7 minutes long.

When was this Database Tech with Fexingo: SQL, NoSQL, and Data Storage Conversations episode published?

This episode was published on June 17, 2026.

What is this episode about?

Database caching can save millions of dollars in compute costs—or cause catastrophic failures if designed poorly. Lucas and Luna dive into the infamous 2020 Fastly CDN outage, where a single caching misconfiguration took down major websites for an...

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