Name: A Huge Cluster or Multi-Clusters? Identifying the Bottleneck - Paco Xu, DaoCloud & Saiyam Pathak, Loft Labs
Start: 2025-04-03T15:00:00+0100
End: 2025-04-03T15:30:00+0100

In-person
1-4 April 2025
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Thursday April 3, 2025 15:00 - 15:30 BST

Level 1 | Hall Entrance S10 | Room A

The increasing complexity of Kubernetes deployments has sparked a debate between scaling single clusters to enormous sizes and managing multiple clusters. At KubeCon NA24, the CNCF Tech Landscape Radar unveiled insights into multicluster application management, while Google showcased a 65000-node cluster powered by Spanner, bypassing etcd's limitations. Similarly, ByteDance has achieved multi-tenancy at scale with Kubebrain.

This talk examines the challenges of large clusters (5,000+ nodes and beyond) and the trade-offs of multicluster solutions. Key topics include API server options, etcd tuning and alternatives (e.g., Kubebrain, kine), and operational concerns such as multi-tenancy models (vCluster, kubezoo, HNC), and operator version control. In parallel, multicluster management solutions like Karmada, Clusternet, and networking challenges with tools like Submariner are explored.

Attendees will gain actionable insights into selecting the most appropriate strategy for their needs.

Speakers

Saiyam Pathak

Principal Developer Advocate, Loft Labs

Saiyam is working as Principal Developer Advocate at Loft Labs. He is the founder of Kubesimplify, focusing on simplifying cloud-native and Kubernetes technologies. Previously at Civo, Walmart Labs, Oracle, and HP, Saiyam has worked on many facets of Kubernetes, including machine... Read More →

Paco Xu

OpenSource Team Leader, DaoCloud

Paco is a member of Kubernetes Steering Committee and the lead of the DaoCloud open-source team. In community, Paco mainly work as a Kubeadm Maintaine and SIG-Node Reviewer. He is co-chair of KubeCon China 2024 and organized Kubernetes Contributor Summit China 2023 and KCD Chengdu 2022, and speaked at KubeCon EU 2023, KubeCon China 2021 & 2023, KCD Shanghai. In 2024, he becomes LFAPAC Evangelist... Read More →

Thursday April 3, 2025 15:00 - 15:30 BST
Level 1 | Hall Entrance S10 | Room A

Operations + Performance

Content Experience Level Beginner

KubeCon + CloudNativeCon Europe 2025

Saiyam Pathak

Paco Xu

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