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9月26日至28日
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September 26-28
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Wednesday, September 27 • 11:50am - 12:25pm
在OpenTelemetry中平衡成本和质量:采样策略的评估 | Balancing Cost and Quality in OpenTelemetry: An Evaluation of Sampling Policies - Zhu Jiekun, Quwan

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分布式追踪对现今微服务架构的故障排查至关重要。在较大规模的企业中,每秒可产生超过 1 亿个 Trace Span,每天需要 200TB 的磁盘空间来存储它们。收集全量 Trace 数据的成本可能很高,而许多看起来相同的 Trace 对问题排查并无帮助。OpenTelemetry 提供了多种采样策略,这些采样策略有助于减少资源使用,但不同的策略需要不同的网络 I/O、内存和存储空间资源,以实现不同的采样质量。面对特定场景,找到最合适的采样策略搭配至关重要。我们将分享评估不同采样策略组合的经验,定量分析它们的成本和采样质量。我们还会介绍一些旨在覆盖更多边缘 Trace 的采样策略。您会了解到不同采样策略的具体成本和收益,以及如何为的业务量身打造采样体系。

Distributed tracing is crucial for troubleshooting in today's microservice architecture.In a sizable organization, over 100 million Trace Spans could be generated every second, requiring 200TB of disk space per day to store them. Collecting the entire volume of Trace data can be expensive, and many Traces that appear identical may not be helpful. OpenTelemetry offers various sampling policies. These policies help to reduce resource usage, but different policies require different amounts of network I/O, memory, and storage space to achieve varying sampling quality. Finding the best combo of different policies for a specific scenario is essential. We will share our experience in evaluating different combo of sampling policies by analyzing their cost and sampling quality quantitatively. We'll also introduce some sampling policies that aim to cover more edge cases. You will learn about the specific costs and benefits of different sampling policies and discover how to customize them for your own business.

Speakers
avatar for Zhu Jiekun

Zhu Jiekun

Software Engineer, Quwan
Jiekun is an open-source software enthusiast and a contributor to OpenTelemetry with a focus on the Collector and sampling.



Wednesday September 27, 2023 11:50am - 12:25pm CST
3层 305B会议室| 3F Room 305B
  可观测性 | Observability