JioHotstar details the technical challenges and solutions implemented to scale its infrastructure to support 59 million concurrent streams during the ODI World Cup 2023, following the introduction of a 'Free on Mobile' offering. The solutions involved optimizing CDN usage by segregating cacheable and non-cacheable APIs, managing NAT Gateway and Kubernetes worker node scaling, and fine-tuning Kubernetes CNI settings for IP address allocation. This first part of a series focuses on infrastructure adjustments to handle unprecedented user concurrency.
JioHotstar’s account shows how live-sports streaming at 59 million concurrent sessions depends on constant tuning across CDN, NAT Gateway, and Kubernetes layers, not just raw server count. The company’s move to isolate cacheable APIs, spread NAT Gateways to the subnet level, and migrate to Amazon EKS highlights how infrastructure decisions now shape viewer experience during major cricket events. The clearest signal to watch next is its follow-up series, which will detail the 10+ EKS clusters and 200+ service migration behind this scale.
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