SINGLE-TENANT TITUS: VM-LEVEL ISOLATION ON A MULTI-TENANT CONTAINER PLATFORM

Summary from the TLDR Data newsletter

Netflix is adding a single-tenant mode to Titus so sensitive workloads can get a dedicated VM without leaving the existing container platform. The motivation is noisy-neighbor interference at the hardware level, which can trigger severe tail-latency spikes for stateful systems. Dedicated nodes improved stability and even recovered capacity lost to anti-affinity, though with slower launches and more warm-capacity planning.