Navigating the Maze of Multi-Cluster Istio: Lessons Learned at Scale

This conference talk explores the challenges and solutions for implementing Istio service mesh across multiple Kubernetes clusters at enterprise scale. Learn from BlackRock's real-world experience managing hundreds of clusters handling millions of daily requests. Discover practical strategies for balancing security with operational complexity, scaling configurations effectively, and designing resilient multi-cluster architectures. The presentation covers implementing a hub-and-spoke model, ensuring secure client isolation, configuring cross-cluster load balancing, managing failover scenarios, and automating cluster lifecycle management. Gain actionable insights whether you're planning your first multi-cluster Istio deployment or struggling with existing service mesh implementations at scale. The talk addresses complex issues not typically covered in basic guides, making it valuable for teams facing the realities of large-scale service mesh operations.