May 2-4, 2018 - Copenhagen, Denmark
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Tuesday, May 1 • 17:45 - 17:50
Lightning Talk: Tips for Operating Kubernetes with OpenStack Cloud Provider - Yang Yu & Yifeng Xiao, VMware (Beginner Skill Level) (Slides Attached)

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OpenStack, one of popular Kubernetes cloud providers, consists of diverse components and is highly configurable, this proposal introduces some tips and tuning configurations to improve the performance and stability to operate Kubernetes in a OpenStack cloud.

Problems which you never see in a small Kubernetes cluster come up as you expand it to a certain scale. Not only tons of logs are caused by polling data from each Kubernetes node, thousands of API calls also causes high CPU usage of OpenStack control nodes. OpenStack Cinder provides a natural fit to support Persistent Volume. But due to volume attaching is an interaction between Nova and Cinder, it leads to issues under large scale. Scaling out Kubernetes degrades service performance drastically because all nodes are inside OpenStack loadbalancer member pools, enabling health monitor or not can make a difference in performance.

avatar for Yifeng Xiao

Yifeng Xiao

Software Engineer, VMware
Yifeng Xiao specializes in software automation testing, from continuous integration to system testing. He is involved in scale testing and performance testing of multiple VMware big data systems and cloud platforms, including Hadoop/HBase, OpenStack and Kubernetes.
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 →

Tuesday May 1, 2018 17:45 - 17:50 CEST
Auditorium 10-12
  Lightning Talk, Beginner