DNS QUERY RESOLUTION OPTIMIZATION IN KUBERNETES: PERFORMANCE ENHANCEMENT STRATEGIES FOR MODERN CONTAINER ORCHESTRATION

Authors

  • Goutam Tadi Software Engineer, USA Author

DOI:

https://doi.org/10.34218/IJCET_16_04_011

Keywords:

Kubernetes, DNS Optimization, CoreDNS, Network Performance, Container Orchestration, Service Discovery

Abstract

Domain Name System (DNS) query resolution represents a critical performance bottleneck in Kubernetes environments, where service-oriented architectures generate substantial DNS traffic. This paper presents evidence-based strategies for optimizing DNS query resolution in Kubernetes clusters, addressing network overhead, latency reduction, and scalability challenges. Through analysis of five key optimization techniques—ndots configuration, Node Local DNS Cache implementation, IPv6 query reduction, TCP enforcement, and CoreDNS scaling—this work provides actionable recommendations for improving cluster performance and resource utilization. Experimental results demonstrate 50-70% improvements in DNS resolution latency and 40-60% reduction in DNS-related network traffic when implementing the proposed optimization strategies.

References

D. Bernstein, "Containers and cloud: From LXC to Docker to Kubernetes," IEEE Cloud Computing, vol. 1, no. 3, pp. 81-84, Sept. 2014.

B. Burns and J. Beda, "Kubernetes: Up and Running: Dive into the Future of Infrastructure," O'Reilly Media, 2017.

P. Mockapetris, "Domain names - implementation and specification," RFC 1035, Nov. 1987.

C. Partridge, "Mail routing and the domain system," RFC 974, Jan. 1986.

L. Chen, S. Patel, and H. Jagadish, "DNS caching strategies for containerized applications," in Proc. IEEE Int. Conf. Cloud Computing, pp. 234-241, 2019.

A. Kumar and R. Singh, "Performance analysis of service discovery mechanisms in microservices architecture," IEEE Trans. Network Service Management, vol. 16, no. 4, pp. 1665-1677, Dec. 2019.

CoreDNS Project, "CoreDNS: DNS and Service Discovery," [Online]. Available: https://coredns.io/

Kubernetes Project, "DNS for Services and Pods," [Online]. Available: https://kubernetes.io/docs/concepts/services-networking/dns-pod-service/

Cloud Native Computing Foundation, "CNCF Annual Survey 2023," [Online]. Available: https://www.cncf.io/reports/

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Published

2025-08-19

How to Cite

Goutam Tadi. (2025). DNS QUERY RESOLUTION OPTIMIZATION IN KUBERNETES: PERFORMANCE ENHANCEMENT STRATEGIES FOR MODERN CONTAINER ORCHESTRATION. INTERNATIONAL JOURNAL OF COMPUTER ENGINEERING AND TECHNOLOGY, 16(4), 162-169. https://doi.org/10.34218/IJCET_16_04_011