Platform teams often deploy Kubernetes clusters across multiple zones, regions, and providers to ensure high availability. VK Tech has released a guide on testing disaster recovery for multi-cluster configurations using the Linkerd service mesh.
The material covers scenarios involving both open-source Linkerd and Buoyant Enterprise for Linkerd (BEL). It details how to simulate infrastructure failures and identifies key factors that influence the recovery process of the service mesh.
The guide highlights the role of Buoyant High Availability Zonal Load Balancing (HAZL). This mechanism focuses on traffic distribution while accounting for specific availability zones to improve overall system resilience.
Readers can access documentation on multi-cluster support in Linkerd, including comparisons of three supported architectural types. The article provides metrics and experimental results to help engineers prepare for large-scale outages.
