在 Asp.Net Core 中无法将跟踪从 OpenTelemetry 导出器导出到弹性 apm

Question

最近，我发现了 OpenTelemetry，我喜欢在我的应用程序中使用它。首先，我创建了一个新的 Asp.Net Core 5 web API 并在控制台上导出了跟踪。之后，我尝试 OpenTelemetry.Exporter.OpenTelemetryProtocol 将跟踪导出到 Elastic APM，但我在 elastic 上看不到日志或跟踪。在第 3 步中，我使用 Elastic.Apm.NetCoreAll，并成功将跟踪发送到 APM。所以我认为我的 Elastic APM 配置是正确的，但是 asp 的某些配置是错误的。

谁能帮我找出错误？

编辑 1： 我使用：
弹性搜索自管理 8.0.0
elastic APM 8.0.0 集成（但我不是 100% 确定，因为在 Observability > APM > Settings > Schema Show APM Server binary currently setup 和 elastic agent 被禁用。

我的创业公司：

var serviceName = "apm_testElastic";
var serviceVersion = "1.0.0";
services.AddOpenTelemetryTracing(traceProviderBuilder =>
        {
            traceProviderBuilder
            .AddSource(serviceName)
            .SetResourceBuilder(
                ResourceBuilder.CreateDefault()
                .AddService(serviceName: serviceName, serviceVersion: serviceVersion)
                .AddEnvironmentVariableDetector())
            .AddAspNetCoreInstrumentation(option => { option.RecordException = true; })
            .AddHttpClientInstrumentation(option => { option.RecordException = true; })
            .AddSqlClientInstrumentation()
            .AddConsoleExporter()
            .AddOtlpExporter(configs =>
            {
                configs.Endpoint = new Uri("http://localhost:8200");
                configs.Protocol = OpenTelemetry.Exporter.OtlpExportProtocol.HttpProtobuf;
            })
            ;
        });

捕获到 OpenTelemetry.Exporter.OpenTelemetryProtocol:

发送的请求

POST http://localhost:8200/ HTTP/1.1
Host: localhost:8200
traceparent: 00-e5d530a09bdd276eac0b4721599eb9f3-2030a82060ad641b-00
Transfer-Encoding: chunked
Content-Type: application/x-protobuf

4F0

    
~
!
service.name
apm_testElastic

service.version 
1.0.0
=
service.instance.id&
$a98af9dc-0169-4077-9b6d-dbbdbc2b9018 
3
(OpenTelemetry.Instrumentation.AspNetCore 1.0.0.0 
    @   Y*r Z ^ ߁X */swagger/index.html09Ȣ^%L A   ?L J
    http.host
localhost:64385J

http.method
GETJ$

http.target
/swagger/index.htmlJ7
http.url+
)http://localhost:64385/swagger/index.htmlJc
http.user_agentP
NMozilla/5.0 (Windows NT 10.0; Win64; x64; rv:97.0) Gecko/20100101 Firefox/97.0J
http.status_code z  
  6 5
g 7[ e    J  s*/swagger/swagger-ui.css09 vHL A *$UL J
    http.host
localhost:64385J

http.method
GETJ(

http.target
/swagger/swagger-ui.cssJ;
http.url/
-http://localhost:64385/swagger/swagger-ui.cssJc
http.user_agentP
NMozilla/5.0 (Windows NT 10.0; Win64; x64; rv:97.0) Gecko/20100101 Firefox/97.0J
http.status_code z 
&
     M   <  D   d*/swagger/v1/swagger.json09t FXL A(T bL J
    http.host
localhost:64385J

http.method
GETJ)

http.target
/swagger/v1/swagger.jsonJ<
http.url0
.http://localhost:64385/swagger/v1/swagger.jsonJc
http.user_agentP
NMozilla/5.0 (Windows NT 10.0; Win64; x64; rv:97.0) Gecko/20100101 Firefox/97.0J
http.status_code z 
0

捕获的回复：

HTTP/1.1 200 OK
Content-Type: text/plain; charset=utf-8
X-Content-Type-Options: nosniff
Date: Tue, 22 Feb 2022 13:20:33 GMT
Content-Length: 132

{"build_date":"2022-02-03T16:50:23Z","build_sha":"6afb387ae002e5a8dc2427b53225aa42681e4208","publish_ready":true,"version":"8.0.0"}

编辑 2：
已捕获 Elastic.Apm.NetCoreAll

发送的请求

POST http://localhost:8200/intake/v2/events HTTP/1.1
Host: localhost:8200
User-Agent: apm-agent-dotnet/1.14.0+a04553cf41c2bc212d866c6031f087273edb9a8b (apm_testElastic 1.0.0) System.Net.Http/5.0.721.25508 .NET_5/5.0.7
traceparent: 00-f7ac803fbe013847ab5179155097ac12-61b588fa5f3baf4c-00
Content-Type: application/x-ndjson; charset=utf-8
Content-Length: 7745

{"metadata":{"service":{"agent":{"name":"dotnet","version":"1.14.0+a04553cf41c2bc212d866c6031f087273edb9a8b"},"environment":"production","framework":{"name":"ASP.NET Core","version":"5.0.0.0"},"language":{"name":"C#"},"name":"apm_testElastic","node":{},"runtime":{"name":".NET 5","version":"5.0.7"},"version":"1.0.0"},"system":{"detected_hostname":"DESKTOP-VBBLGES","hostname":"DESKTOP-VBBLGES"}}}
{"transaction":{"context":{"request":{"body":"[REDACTED]","headers":{"Accept":"text/plain","Accept-Encoding":"gzip, deflate, br","Accept-Language":"en-US,en;q=0.5","Connection":"close","Cookie":"...","Host":"localhost:44388","Referer":"https://localhost:44388/swagger/index.html","Te":"trailers","User-Agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:97.0) Gecko/20100101 Firefox/97.0","sec-fetch-dest":"empty","sec-fetch-mode":"cors","sec-fetch-site":"same-origin"},"http_version":"2","method":"GET","socket":{"remote_address":"127.0.0.1"},"url":{"full":"https://localhost:44388/WeatherForecast","hostname":"localhost","pathname":"/WeatherForecast","protocol":"HTTP","raw":"https://localhost:44388/WeatherForecast","search":""}},"response":{"finished":true,"headers":{"Content-Type":"application/json; charset=utf-8"},"status_code":200}},"duration":3537.739,"id":"b3b5abb9757d6c45","sampled":true,"name":"GET WeatherForecast/Get","outcome":"success","result":"HTTP 2xx","sample_rate":1.0,"span_count":{"dropped":0,"started":0},"timestamp":1645613137714025,"trace_id":"0abec8e78e6c4846886d04c8da27bf23","type":"request"}}

两个新问题：
1- 两次捕获的请求格式不同，Elastic APM 服务器是否处理两种格式？
2- 从 OpenTelemetry.Exporter.OpenTelemetryProtocol 捕获的请求是否正确？

Answer 1

经过一番搜索，重新安装和调试，我发现了我的错误。我从 OpenTelemetry .net samples 下载了 AspNetCore 示例，我发现我应该在我的代码中添加下一行：

AppContext.SetSwitch("System.Net.Http.SocketsHttpHandler.Http2UnencryptedSupport", true);

在 Asp.Net Core 中无法将跟踪从 OpenTelemetry 导出器导出到弹性 apm

In Asp.Net Core Can't export traces from OpenTelemetry exporter to elastic apm

apm

elasticsearch

asp.net-core

elastic-apm

open-telemetry