Only run host tests for linux-x64 on Azure Linux helix queues #118005
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Pull Request Overview
This PR optimizes the CI pipeline by reducing the number of Linux test queues for host tests from two to one. The change removes Ubuntu.2204.Amd64.Open from the helix queue configuration while keeping AzureLinux.3.Amd64.Open, addressing timeout issues and reducing wait times since libraries tests already provide Ubuntu coverage through the live host.
Key Changes
- Removes Ubuntu.2204.Amd64.Open from the linux_x64 helix queue configuration
- Retains AzureLinux.3.Amd64.Open as the sole Linux x64 test queue for host tests
- Reduces CI resource usage while maintaining adequate test coverage
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jkoritzinsky
approved these changes
Jul 24, 2025
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We're currently sending tests to both AzureLinux.3.Amd64.Open and Ubuntu.2204.Amd64.Open. Just AzureLinux.3.Amd64.Open should be enough for host tests. I've seen some long wait times and timeouts for host tests sent to Ubuntu.2204.Amd64.Open recently. The libraries tests already run on Ubuntu - they use the live host, so that should have enough basic coverage.
cc @dotnet/appmodel @richlander