Shanghai, China
June 24–26, 2019
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Tuesday, June 25 • 16:00 - 16:35
Network Bandwidth-Aware Kubernetes Cluster - Yifeng Xiao & Yang Yu, VMware

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Currently Kubernetes scheduler only considers cpu and memory but with network bandwidth oversubscription widely exists in the data centers, bandwidth contention is a big problem for bandwidth sensitive applications. With Kubernetes commonly deployed in a virtualized infrastructure like vSphere or OpenStack, network information at Kubernetes worker node level is not enough. If we want to guarantee those special applications won't get blocked anywhere in a cluster, we need to reserve network bandwidth for worker nodes in the whole cluster and use that information in the algorithm of scheduler. In this proposal we will not only demonstrate an approach to extend the default Kubernetes scheduler to an external service to make better placement on network resources, but also introduce a method to ensure ongoing network bandwidth for critical applications.

avatar for Yang Yu

Yang Yu

Software Engineer, VMware
Yang is a staff engineer of China R&D, VMware. She's working on Kubernetes CNI plugin, focusing on providing CNI plugin for VMware NSX transformers product. Before joining in the Kubernetes community, Yang worked for OpenStack open source project for 4 years. She was familiar with... Read More →
avatar for Yifeng Xiao

Yifeng Xiao

Software Engineer, VMware
Yifeng Xiao is a software engineer at VMware. He specializes in cloud computing and Big Data. He is working on scalability and performance of VMware PKS. Before that, he also worked on open source project VMware Integrated Container, VMware Integrated OpenStack and VMware Big Data... Read More →

Tuesday June 25, 2019 16:00 - 16:35