Enhancing DNS Reliability in Kubernetes With Node Local DN... Sanjay Kumar K K R & Priyanshi Agrawal скачать в хорошем качестве

Enhancing DNS Reliability in Kubernetes With Node Local DN... Sanjay Kumar K K R & Priyanshi Agrawal

Don't miss out! Join us at our next Flagship Conference: KubeCon + CloudNativeCon North America in Atlanta (November 10-13). Connect with our current graduated, incubating, and sandbox projects as the community gathers to further the education and advancement of cloud native computing. Learn more at https://kubecon.io Enhancing DNS Reliability in Kubernetes With Node Local DNS Cache - Sanjay Kumar K K R & Priyanshi Agrawal, New Relic In Kubernetes, DNS resolution is vital for service discovery. CoreDNS, the default DNS provider, can face performance issues such as timeouts, latency, and scalability challenges, which increase reliance on upstream DNS and lead to unreliable service discovery. To enhance DNS reliability, we propose integrating Node Local DNS Cache. We'll discuss implementing node-local DNS caching in hundreds of clusters with over tens of thousands of nodes, effectively resolving DNS issues, boosting resolution reliability, reducing CoreDNS load, and minimizing dependency on upstream DNS sources. Attendees will gain insights into the technical approach, including performance assessments and testing scenarios emphasizing latency improvements. We've achieved a 30x performance enhancement and greater dns query-handling capacities through node-local DNS cache deployment. This session will provide valuable understanding of techniques to ensure robust DNS resolution in large-scale Kubernetes environments.