Virtual Event
August 17–August 20, 2020
Learn More and Register to Attend This Event

The Sched app allows you to build your schedule but is not a substitute for your event registration. You must be registered for KubeCon + CloudNativeCon Europe 2020 - Virtual to participate in the sessions. If you have not registered but would like to join us, please register here.

Please note: This schedule is automatically displayed in Central European Summer Time (CEST). To see the schedule in your preferred timezone, please select from the drop-down menu to the right, above "Filter by Date." The schedule is subject to change.
Back To Schedule
Tuesday, August 18 • 14:30 - 15:05
Kubernetes DNS Horror Stories (And How to Avoid Them) - Laurent Bernaille, Datadog

Sign up or log in to save this to your schedule, view media, leave feedback and see who's attending!

Feedback form is now closed.
DNS is one of the Kubernetes core systems and can quickly become a source of issues when you’re running clusters at scale. For over a year at Datadog, we’ve run Kubernetes clusters with thousands of nodes that host workloads generating tens of thousands of DNS queries per second. It wasn’t easy to build an architecture able to handle this load, and we’ve had our share of problems along the way.

This talk starts with a presentation of how Kubernetes DNS works. It then dives into the challenges we’ve faced, which span a variety of topics related to load, connection tracking, upstream servers, rolling updates, resolver implementations, and performance. We then show how our DNS architecture evolved over time to address or mitigate these problems. Finally, we share our solutions for detecting these problems before they happen—and identifying misbehaving clients.


Laurent Bernaille

Staff Engineer, Datadog
Laurent Bernaille worked several years as a consultant specialized in cloud, containers, and automation and helped organizations migrate to the public cloud, adopt containers and improve their deployment pipelines. He is now Staff Engineer at Datadog and works in the Compute team... Read More →

Tuesday August 18, 2020 14:30 - 15:05 CEST
InXpo https://onlinexperiences.com/Launch/Event.htm?ShowKey99259