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Populate HttpMethod field from http.request.method for consistency with .NET/Node SDKs

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难度
3/5
预计耗时
1-2 天
新手友好度
48/100
Issue 类型
功能
描述清晰度
基本清楚
活跃度
停滞
技术栈
azure, java
领域
observability

调研方向

首先跟踪 Java Agent 请求遥测如何将 OpenTelemetry 的 http.request.method 属性映射到旧版 HttpMethod 字段。验证使用 GET 等方法的请求的映射,并添加或更新覆盖率,以展示 HttpMethod 始终与请求名称一致地填充。

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描述


Is your feature request related to a problem? Please describe.

When using Application Insights Java Agent 3.x, the HttpMethod field in the
requests table is always empty. The HTTP method is only available embedded
in the name field (e.g., "GET /api/users").

This is frustrating because:

  1. KQL queries using HttpMethod return no results for Java services
  2. Cross-service queries don't work uniformly (.NET services have HttpMethod, Java doesn't)
  3. Existing dashboards and alerts that filter by HttpMethod break when adding Java services
  4. The field exists but is empty, which looks like a bug rather than expected behavior

Describe the solution you would like

Map the OpenTelemetry http.request.method attribute to the legacy HttpMethod
field in Application Insights request telemetry.

This would make Java Agent 3.x consistent with .NET and Node.js SDKs, which
populate this field.


Describe alternatives you have considered

Current workaround is parsing the method from the name field in KQL:

requests
| extend HttpMethod = tostring(split(name, " ")[0])

This works but requires modifying all existing queries, dashboards, and alerts.
It also adds overhead and is error-prone if the name format changes.


Additional context

  • Java Agent version: 3.7.7 (and likely all 3.x versions)
  • The change to OpenTelemetry semantic conventions (http.method → http.request.method)
    happened in Nov 2023, but the HttpMethod field was never mapped
  • This affects mixed-language environments where consistent telemetry querying is important

主要语言
Java
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