October 24, 2022 | Detroit, Michigan
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Monday, October 24 • 1:10pm - 1:20pm
⚡ Lightning Talk: Distributed Tracing Without the Pain! - Sachin Ashok & Vipul Harsh, University of Illinois at Urbana-Champaign (UIUC)

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Monitoring and debugging modern cloud-based applications is challenging due to their highly distributed nature. End-to-end distributed tracing (tracing individual calls through a request's lifecycle) has emerged to be essential in a developer's toolbox as they're critical to describing a request's flow through a microservice. Unfortunately, to enable distributed tracing, each service along the request tree needs to propagate a global request ID to help link the related requests (i.e., link incoming requests with spawned backend requests). Enabling such header propagation can be non-trivial for large microservices with 100+ independent services or for legacy apps where instrumentation is hard. This talk explores whether distributed tracing can be made more accessible by eliminating the need for application instrumentation. We describe a method that combines observations external to the app (using an envoy-based service mesh) with timing analysis of the requests to construct end-to-end traces. In an evaluation with a simple microservice, this preliminary method boosts trace reconstruction accuracy to 96% (compared to 77% for a baseline), and can help answer useful developer queries.

avatar for Sachin Ashok

Sachin Ashok

PhD student, University of Illinois at Urbana-Champaign (UIUC)
Sachin Ashok is a 2nd year PhD student at the University of Illinois at Urbana-Champaign where he's co-advised by Prof. Brighten Godfrey and Prof. Radhika Mittal. Previously, he was a Research Fellow at Microsoft Research, India. Recently, he's been quite interested in microservices... Read More →

Vipul Harsh

PhD student, University of Illinois at Urbana-Champaign (UIUC)
Vipul Harsh is a 5th year PhD student at UIUC, advised by Brighten Godfrey. His research develops techniques for automated infrastructure troubleshooting. Currently, he is also looking at ways to make distributed tracing more accessible for legacy applications. Previously, he was... Read More →

Monday October 24, 2022 1:10pm - 1:20pm EDT
Room 310 B Huntington Place: 1 Washington Blvd, Detroit, MI 48226
  Lightning Talks