Navigating the Service Mesh Ecosystem
summary
Compares concrete service meshes: Linkerd v1: JVM/Scala, >1 trillion requests in production, Linkerd v2: complete rewrite with tiny Rust proxies, zero‑config observability + automatic mTLS, Envoy: C++ extensible proxy originating from Lyft, Istio: feature-rich control plane with >50 CRDs and potential policy conflicts. Covers incremental pod‑level adoption, multi‑cluster via zone gateways or centralized discovery (Consul), and tradeoffs: runtime footprint, operational complexity, and where automatic TLS, metrics, or custom routing actually deliver measurable value.
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