[BUG] Distributed Tracing数据聚合异常

[ImJerryChan]

Search before asking

• [X] I had searched in the issues and found no similar feature requirement.

DeepFlow Component

Grafana Dashbaord

What you expected to happen

DeepFlow Flame Graph-data-2024-04-15 17_10_25.csv

How to reproduce

No response

DeepFlow version

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DeepFlow agent list

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Kubernetes CNI

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Operation-System/Kernel version

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Anything else

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Are you willing to submit a PR?

• [ ] Yes I am willing to submit a PR!

Code of Conduct

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[taloric]

@ImJerryChan I've checked the data of csv that I noticed there're a few issues:

1. sort of network and syscall is wrong, and some of them sorted with short duration upper and long duration lower;
   • Solution: you should update deepflow-app to latest version ,it fixed the sorting here.
2. some observation_point were lost: you should check your agent status and try to find out if request every time upload same count of span;
   • Solution: check /DeepFlow_Alert_Analysis dashboard on Grafana, confirm agent status
   • try to instrument gloabl trace id through each service;
3. DNS span is not the main issue, it seems it did send DNS request in the same thread, it's what our expected;