Missing parent trace activities (spans) when switching context between SDK and CLI

未關閉
#2,803 2 則留言 0 個 reaction 已指派 0 人 在 GitHub 檢視

還沒有人認領這個 Issue。

評估

難度
3/5
預估耗時
1-2 天
新手友好度
68/100
Issue 類型
缺陷
描述清晰度
基本清楚
活躍度
活躍
技術堆疊
csharp
領域
observability

研究方向

Start in dotnet/src/Telemetry.cs at RestoreTraceContext and trace how the created Activity becomes the parent for tool activities. Compare that behavior with the ActivitySource and github.copilot source details mentioned in the issue, then verify that the resulting trace tree preserves the external_tool parent and sampled child spans when switching between SDK and CLI.

由索引模型根據 Issue 內容生成。

描述

bug

We are using Copilot SDK for .NET and it seems like the thinking behind RestoreTraceContext (this) is not entirely correct. It creates a new Activity without the ActivitySource, which, indeed, prevents it from being sampled, but it still carries its own id (span id), which is then used as a parent span id for all children activities. So in the trace tree (In Grafana, for example) we see unparented spans from the tool implementations, which I think should be parented under external_tool spans from the Copilot CLI:

Image

the GET span (id d2c10abb001cb97a) has parent span id set to cabcf362cbf15a7a (which is nowhere to be found), where as external_tool span has an id of 2cd84acd8fb4e994. So, I think, the tree is:

external_tool (2cd84acd8fb4e994, from CLI)
 \ copilot.tool_handler (cabcf362cbf15a7a, from SDK) <--- "invisible activity"
    \ GET (d2c10abb001cb97a, from our tool code)

Why don't we just emit this span properly from ActivitySource (maybe matching SourceName/default github.copilot)?

I also think a similar problem exists in the CLI itself, because transitioning from SDK to CLI also leaves all "top-level" CLI spans unparented. CLI code doesn't seem to be open source, so I can't confirm, but my gut feeling is that a similar approach was used there in CLI, where it creates one span and doesn't attach it to a source that is being sampled/exported, so it never gets collected, leaving all other CLI spans unparented. 😞

主要語言
Java
星號
10.7k
分支
1.5k
PR 合併指標
30 天內沒有已合併 PR

環境準備

  • 沒有 Dockerfile 或 Docker Compose 檔案
  • 沒有 Pull Request 範本
  • 閱讀貢獻指南

從這裡開始

  1. 先讀完整個 Issue,再讀專案的貢獻指南。
  2. 在 Issue 下留言說明你要接手 —— 這能避免兩個人做同樣的事。
  3. Fork 儲存庫,在一個分支上完成修改。
  4. 送出 Pull Request,並在描述裡引用這個 Issue 編號。

github/copilot-sdk 的其他 Issue

查看 github/copilot-sdk 的全部 Issue

相似的 Issue

更多 Java Issue

把新 issue 寄到你的電子郵件信箱

精選適合新手參與的 GitHub issue 摘要。