Microsoft.Extensions.Hosting.Internal.HostTests.HostLifetimeOnStartedDelaysStart failed on rolling build

[krwq]

I've found only a single instance of that in the last month. My guess by looking at the test is that timeouts need to by slightly increased. It would be useful to add a tiny bit more diagnostic to this test

Build: https://dev.azure.com/dnceng/public/_build/results?buildId=1383490&view=results

  Starting:    Microsoft.Extensions.Hosting.Unit.Tests (parallel test collections = on, max threads = 2)
�[40m�[32minfo�[39m�[22m�[49m: Microsoft.Extensions.Hosting.Tests.HostTests[0]
      Request starting
    Microsoft.Extensions.Hosting.Internal.HostTests.HostLifetimeOnStartedDelaysStart [FAIL]
      Assert.True() Failure
      Expected: True
      Actual:   False
      Stack Trace:
        /_/src/libraries/Microsoft.Extensions.Hosting/tests/UnitTests/Internal/HostTests.cs(402,0): at Microsoft.Extensions.Hosting.Internal.HostTests.HostLifetimeOnStartedDelaysStart()
        --- End of stack trace from previous location ---

Runfo Tracking Issue: Microsoft.Extensions.Hosting.Internal.HostTests.HostLifetimeOnStartedDelaysStart

Build	Definition	Kind	Run Name

Build Result Summary

Day Hit Count	Week Hit Count	Month Hit Count
0	0	0

Tagging subscribers to this area: @eerhardt, @maryamariyan
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Issue Details

---

I've found only a single instance of that in the last month. My guess by looking at the test is that timeouts need to by slightly increased. It would be useful to add a tiny bit more diagnostic to this test

  Starting:    Microsoft.Extensions.Hosting.Unit.Tests (parallel test collections = on, max threads = 2)
�[40m�[32minfo�[39m�[22m�[49m: Microsoft.Extensions.Hosting.Tests.HostTests[0]
      Request starting
    Microsoft.Extensions.Hosting.Internal.HostTests.HostLifetimeOnStartedDelaysStart [FAIL]
      Assert.True() Failure
      Expected: True
      Actual:   False
      Stack Trace:
        /_/src/libraries/Microsoft.Extensions.Hosting/tests/UnitTests/Internal/HostTests.cs(402,0): at Microsoft.Extensions.Hosting.Internal.HostTests.HostLifetimeOnStartedDelaysStart()
        --- End of stack trace from previous location ---

Author:	krwq
Assignees:	-
Labels:	untriaged, area-Extensions-Hosting
Milestone:	-

[krwq]

I'm not adding blocking-clean-ci here only because of the low frequency

[krwq]

@maryamariyan since this is affecting some builds can you please disable the test or at least try increasing the timeouts (to i.e. 30s)?

[JulieLeeMSFT]

Changed to .NET 10. @jeffhandley, PTAL.
More than 300 test failures of Microsoft.Extensions.XXX tests in runtime-coreclr libraries-pgo pipeline.
Example run: 20250607.1
test leg 1: net10.0-linux-Release-arm64-jitosr_stress-(AzureLinux.3.0.ArmArch.Open)Ubuntu.2204.ArmArch.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:azurelinux-3.0-helix-arm64v8
test leg 2: net10.0-linux-Release-x64-jitosr_stress-Ubuntu.2204.Amd64.Open
test leg 3: net10.0-windows-Release-x64-jitosr_stress-Windows.10.Amd64.Open

CC @AndyAyersMS.

[AndyAyersMS]

These look like infra issues. Kicked off a new run.

[AndyAyersMS]

New run does not have these failures, so re-closing this assuming it was indeed infra related.

https://dev.azure.com/dnceng-public/public/_build/results?buildId=1067885&view=ms.vss-test-web.build-test-results-tab