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In-person + Virtual
November 6-9
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Thursday, November 9 • 11:55am - 12:30pm
Under the Hood: Exploring Istio's Lock Contention and Its Impact on Expedia's Compute Platform - Raghav Grover & Timothy Ehlers, Expedia

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This case study explores Expedia's investigation into a disruptive incident, uncovering a lock contention in Istio. Join us as we deep dive into the systematic steps taken to rule out the various possibilities, navigating through the challenges posed by limited observability and ultimately identifying the root cause. Discover the impact on performance and business metrics, and the collaborative efforts with the Istio open source maintainers, who promptly acknowledged and addressed the issue. This talk will discuss how at Expedia, Compute platform team built a custom Istio Pilot with added observability and tweaked controller queues that helped narrow down the root cause, and how profiling Istio Pilot uncovered a lock contention that introduced significant delays in Proxy propagation and resulted in outages. Furthermore, this talk will provide details about the interim workaround and its impact Expedia implemented before the solution was available upstream.

Speakers
avatar for Raghav Grover

Raghav Grover

Senior Software Engineer, Expedia
Senior Software Engineer at ExpediaGroup | Enthusiast about highly scalable and performant web apps, Distributed systems and Kubernetes.
avatar for Timothy Ehlers

Timothy Ehlers

Sr software development engineer, Expedia
Senior Software Engineer at ExpediaGroup. Opsdev engineer for life. I always try things the ops way first then do some dev.



Thursday November 9, 2023 11:55am - 12:30pm CST
W175 (Ground Level)
  Service Mesh