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Known Test Repository Issue Sometimes Misses Test Failures #6411

@nagilson

Description

@nagilson

Build

https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1196220

Build leg reported

Microsoft.DotNet.Cli.New.IntegrationTests.DotnetNewSearchTests.BasicTest

Pull Request

dotnet/sdk#51591

Known issue core information

Fill out the known issue JSON section by following the step by step documentation on how to create a known issue

 {
    "ErrorMessage" : "The SSL connection",
    "BuildRetry": false,
    "ErrorPattern": "",
    "ExcludeConsoleLog": false
 }

So, I believe there is an issue with the known issue flagger, where it is failing to mark certain failures as known, even if they are a known issue. Please let me know if I am mistaken.

Here's the issue:
Looking at this image, this test was not considered a known issue:
https://github.com/dotnet/sdk/pull/51591/checks?check_run_id=54740778719

Image

I believe that, because it's showing as a test failure, and other similar test failures are counted in the above section:

Image

Furthermore, it appeared to be blocking build-analysis from being green.

Here's such an example of 1 of several 'known issues' that flag this issue:
#5015
dotnet/sdk#51574
#6410

As you can see in, #51574 looks for the string "The SSL connection could not be established" as a ErrorMessage which is supposed to use String.Contains. The test, however, that I think was not flagged as a 'known issue', did indeed have that error message string. It looks like some were flagged, while others were not. Here's the output of that 'unknown' test failure:

Expected command to exit with 0 but it did not.\nFile Name: /Users/runner/work/1/s/artifacts/bin/redist/Release/dotnet/dotnet\nArguments: new console --search --debug:custom-hive /Users/runner/work/1/s/artifacts/tmp/Release/dotnet-new.IntegrationTests/SharedHomeDirectory/20251106211951401\nExit Code: 103\nStdOut:\nWarning: use of 'dotnet new --search' is deprecated. Use 'dotnet new search' instead.\nFor more information, run: \n   dotnet new search -h\n\nSearching for the templates...\nStdErr:\nMatches from template source: NuGet.org\nSearch failed: Failed to update search cache. (The SSL connection could not be established, see inner exception.) (The SSL connection could not be established, see inner exception.)\n\nFor details on the exit code, refer to https://aka.ms/templating-exit-codes#103\n [[Full log]](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1196220&view=ms.vss-test-web.build-test-results-tab&runId=33106418&resultId=100166&paneView=debug)

While there may be a confounding variable in that there are now several known issues which are tracking substrings of each other, or may overlap, the whole reason there are multiple in the first place is because the first existing known test repository issue did not flag all of the tests which failed with the known issue.

Could this alternatively be a limitation of:

  1. A limit of how many tests can be flagged as a known issue for the same known issue
  2. A different 'failing configuration' which causes issues to be missed?
  3. A misunderstanding of which strings get searched? Note that I believe the error is also in the 'helix logs'.
  4. A failure of my own accord to file the known issue? @dotnet/dnceng

Release Note Category

  • Feature changes/additions
  • Bug fixes
  • Internal Infrastructure Improvements

Release Note Description

Additional information about the issue reported

No response

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1196220
Error message validated: [The SSL Connection C]
Result validation: ❌ Known issue did not match with the provided build.
Validation performed at: 11/6/2025 10:39:11 PM UTC

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1196220
Error message validated: [The SSL connection]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 11/6/2025 10:42:09 PM UTC

Report

Build Definition Step Name Console log Pull Request
1196423 dotnet/machinelearning Build Log dotnet/machinelearning#7543
1196398 dotnet/aspnetcore Run build.sh Log dotnet/aspnetcore#64262
1196235 dotnet/runtime Send tests to Helix (Unix) Log dotnet/runtime#121356
1196186 dotnet/runtime Send to Helix (Unix) Log dotnet/runtime#121417
1196168 dotnet/runtime Send tests to Helix (Unix) Log
Build Definition Test Pull Request
1196358 dotnet/sdk Microsoft.DotNet.Cli.New.IntegrationTests.DotnetNewSearchTests.CanShowDeprecationMessage_WhenLegacyCommandIsUsed dotnet/sdk#51558
1196220 dotnet/sdk Microsoft.DotNet.Cli.New.IntegrationTests.DotnetNewSearchTests.CanShowDeprecationMessage_WhenLegacyCommandIsUsed dotnet/sdk#51591

Summary

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

Report

Build Definition Step Name Console log Pull Request
1331289 dotnet/runtime Build product Log dotnet/runtime#125075
2924652 dotnet-runtime Restore and Build Product Log #58444
1330272 dotnet/maui Controls Editor,Effects,FlyoutPage,Focus,Fonts,Frame,Gestures,GraphicsView Log
1330626 dotnet/maui 🛠️ Build Microsoft.Maui.sln Log dotnet/maui#34429
1328072 dotnet/maui Controls Page,Performance,Picker,ProgressBar Log dotnet/maui#33450
2922489 dotnet-performance Run performance job script Log
1323428 dotnet/maui Publish the mac_ui_tests_controls test results Log
1319664 dotnet/maui Controls (v18.4) Entry Log dotnet/maui#33834
2916155 dotnet-runtime Restore and Build Product Log #58444
1311295 dotnet/maui Controls (v18.4) Log
1310882 dotnet/maui publish artifacts Log dotnet/maui#33991
1307605 dotnet/maui Controls (vlatest) Entry Log
1305845 dotnet/maui Controls (v18.5) Entry Log
2906970 dotnet-dotnet Build Log
Build Definition Test Pull Request
1332305 dotnet/runtime System.Net.Http.Functional.Tests.WorkItemExecution
1319685 dotnet/sdk Microsoft.NET.Build.Containers.UnitTests.dll.2.WorkItemExecution dotnet/sdk#53245
1319267 dotnet/runtime System.Net.Http.Functional.Tests.WorkItemExecution
1317758 dotnet/sdk Microsoft.NET.Build.Containers.UnitTests.dll.2.WorkItemExecution dotnet/sdk#53155
1316056 dotnet/runtime System.Net.Http.Functional.Tests.NtAuthTests.Http2_FakeServer_SessionAuthChallenge_AutomaticallyDowngradesToHttp11 dotnet/runtime#123827
1316114 dotnet/runtime System.Net.Http.Functional.Tests.WorkItemExecution dotnet/runtime#125056
1315961 dotnet/runtime System.Net.Http.Functional.Tests.WorkItemExecution
1314279 dotnet/aspire Aspire.Playground.Tests.WorkItemExecution dotnet/aspire#14790
1314105 dotnet/aspire Aspire.Playground.Tests.WorkItemExecution
1313738 dotnet/roslyn workitem_13.WorkItemExecution dotnet/roslyn#82565
1313005 dotnet/runtime System.Net.Http.Functional.Tests.WorkItemExecution
1310944 dotnet/runtime System.Net.Http.Functional.Tests.HttpClientHandlerTest_Http3.Public_Interop_ExactVersion_BufferContent_Success
1301648 dotnet/sdk Microsoft.DotNet.Tools.Dotnetup.Tests.ReuseAndErrorTests.Install_ReusesExistingInstall(componentType: "runtime", channelOrSpec: "9.0") dotnet/sdk#52695
1298622 dotnet/runtime System.Net.Http.Functional.Tests.WorkItemExecution
1297992 dotnet/runtime System.Net.Http.Functional.Tests.WorkItemExecution
1297401 dotnet/runtime System.Net.Http.Functional.Tests.WorkItemExecution dotnet/runtime#124514
1296448 dotnet/runtime System.Net.Http.Functional.Tests.WorkItemExecution

Summary

24-Hour Hit Count 7-Day Hit Count 1-Month Count
0 7 31

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