Hybrid Caching in .NET
summary
Compares two concrete implementations: FusionCache (open source, created 2020, used by Microsoft’s Data API Builder) and Microsoft HybridCache (abstraction introduced in .NET 9, implementation 2025). FusionCache provides deterministic stampede protection, fail‑safe, eager refresh, factory timeouts, optional backplane for instant multi‑node coherence, sync+async APIs and netstandard2.0 support; Microsoft’s implementation is async‑only, single instance by DI, lacks a backplane and has nondeterministic factory execution — adapter lets FusionCache satisfy the new abstraction.
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chapters (12)
- 0:00Introduction
- 1:51Types of caches
- 6:54Benefits of hybrid caching
- 13:35Hybrid vs multi-level
- 16:04FusionCache overview
- 22:12Addressing cache stampede
- 25:55Resiliency via fail-safe
- 30:38Performance and optimizations
- 36:42Scaling and cache coherence
- 41:10Microsoft HybridCache
- 46:54Advanced hybrid strategies
- 57:52Conclusion
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