Short abstract
Running databases on Kubernetes already? How about boosting the performance by utilizing local node storage? Sounds great, but you will also learn about the downside of this approach and issues you might face.

Full abstract
At Percona we have lots of experience running databases on Kubernetes - MySQL, MongoDB, PostgreSQL. We had multiple interactions with users and customers, who were tuning their databases for performance on K8s and decided to use local storage. Others were trying to save money - ex. use NVMe SSDs instead of EBS. We want to share these stories and provide more insights into various performance and stability implications when running databases on Kubernetes on local storage.

The plan of the talk is the following: - intro into DBs on k8s - why would anyone want to use local storage - review various solutions for local storage - look deeper into known issues and possible problems - measure performance of various solutions (on the example of MySQL)