Seattle, WA
December 10–13, 2018
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Tuesday, December 11 • 1:45pm - 2:20pm
Scale Your Service on What Matters: Autoscaling on Latency - Thomas Rampelberg, Buoyant

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Scaling HTTP based workloads is about more than cpu and memory. This talk will show why it is critical to scale based on latency, as well as how to do it for your own service by combining Linkerd, Prometheus, and Kubernetes. We demonstrate how to use Linkerd to instrument your service to collect aggregated service latency, store these metrics in Prometheus, and use them as custom metrics for consumption by Kubernetes’s Horizontal Pod Autoscaler. We demonstrate how latency-based autoscaling outperforms CPU- and memory-based autoscaling under a variety of conditions including live traffic from the attendees of this talk, and suggest ways to safely apply this technique to existing systems.

avatar for Thomas Rampelberg

Thomas Rampelberg

Software Engineer, Buoyant
Thomas Rampelberg is a Software Engineer at Buoyant Inc. He has made a career of building infrastructure software that allows developers and operators to focus on what is important to them. He is a contributor to Linkerd and has been maintaining Kubernetes applications at scale and... Read More →

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Tuesday December 11, 2018 1:45pm - 2:20pm PST
Ballroom 6B