CI failure in System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException

[tarekgh]

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1090193
Build error leg or test failing: System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException
Pull request: #117474

Error Message

Fill the error message using step by step known issues guidance.

{
  "ErrorMessage": "System.Net.Http.HttpProtocolException : The HTTP/3 server closed the connection. HTTP/3 error code 'H3_NO_ERROR' (0x100). (HttpProtocolError)",
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1090193
Error message validated: [System.Net.Http.HttpProtocolException : The HTTP/3 server closed the connection. HTTP/3 error code 'H3_NO_ERROR' (0x100). (HttpProtocolError)]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 7/9/2025 10:46:59 PM UTC

Report

Build	Definition	Test	Pull Request
1093249	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException
1093209	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#117585
1093127	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandlerTest_HttpClientHandlerTest_Http2.SendAsync_RequestWithDangerousControlHeaderValue_ThrowsHttpRequestException	#117436
1093065	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#117580
1092759	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#117192
1092726	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandlerTest_HttpClientHandlerTest_Http2.SendAsync_RequestWithDangerousControlHeaderValue_ThrowsHttpRequestException
1092691	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandlerTest_HttpClientHandlerTest_Http2.SendAsync_RequestWithDangerousControlHeaderValue_ThrowsHttpRequestException	#117549
1092578	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#117563
1092331	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#117530
1092246	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#117540
1092203	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#117542
1090911	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#117460
1091546	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#115443
1091735	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#117526
1091526	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#117434
1091422	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#117513
1091212	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#117508
1091213	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#116821
1091112	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#105403
1091177	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#117507
1091170	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#116539
1091157	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#117428
1091072	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandlerTest_HttpClientHandlerTest_Http2.SendAsync_RequestWithDangerousControlHeaderValue_ThrowsHttpRequestException	#117472
1091051	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#117503
1090830	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#117494
1090826	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#117318
1090792	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#117148
1090737	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#117410
1090214	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#117105
1090293	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#117333
1090193	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_MaxResponseHeadersLength_Http3.ThresholdExceeded_ThrowsException	#117474

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
4	31	31

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