Need to set DOTNET_CLI_DO_NOT_USE_MSBUILD_SERVER=true on linux builds

[MattGal]

Build

https://dev.azure.com/dnceng-public/public/_build/results?buildId=59411&view=results

Build leg reported

Android_Simulators Build_Release

Pull Request

#11364

Action required for the engineering services team

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{
   "ErrorMessage" : "Unhandled exception: System.IO.IOException: Connection timed out : 'Global\\msbuild-server-launch-",
   "BuildRetry": false
}

Additional information about the issue reported

This is a known issue with .NET Core MSBuild in RC1 and RC2 and impacts any repo using this for build in linux

Report

Build	Definition	Step Name	Console log	Pull Request
63280	dotnet/roslyn	Build with analyzers	Log	dotnet/roslyn#64983
63149	dotnet/roslyn	Build with analyzers	Log	dotnet/roslyn#64977
62842	dotnet/roslyn	Build with analyzers	Log
61673	dotnet/roslyn	Restore	Log
61490	dotnet/roslyn	Restore	Log
61357	dotnet/roslyn	Build with analyzers	Log	dotnet/roslyn#64936
61126	dotnet/arcade	XHarness Android Helix Testing (Linux)	Log
60694	dotnet/roslyn	Restore	Log
59926	dotnet/roslyn	Restore	Log	dotnet/roslyn#64893
59850	dotnet/arcade	Run Helix Tests	Log	#11374
59697	dotnet/roslyn	Restore	Log	dotnet/roslyn#64890
59629	dotnet/arcade	XHarness Apple Simulator Helix Testing	Log
59526	dotnet/roslyn	Restore	Log	dotnet/roslyn#64741
59170	dotnet/arcade	XHarness Apple Simulator Helix Testing	Log	#11359
59122	dotnet/arcade	XHarness Apple Simulator Helix Testing	Log	#11359
58747	dotnet/roslyn	Restore	Log	dotnet/roslyn#64879
58707	dotnet/roslyn	Restore	Log	dotnet/roslyn#64741

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
3	17	17

[MattGal]

#11371 should prevent this for arcade and anyone else using build.sh. Roslyn does its own thing so not much we can do about that directly.

[MattGal]

@ilyas1974 I am tossing this into "tracking/blocked" since it should be fixed for arcade and users of tools.sh but Roslyn (top hitter) doesn't use this. It should just go away at some point when newer .NET Core SDKs improve the functionality of the MSbuild server

[MattGal]

Discussed with @ilyas1974 ; since we have added the workaround in arcade and the only remaining hitter is using a custom build entry point, I am closing this issue as complete. I reached out to some contacts on the Roslyn side to encourage workaround.

[dougbu]

@agocke mentioned in CI Council that server was disabled by default in 7.0.1xx SDK versions. Not sure of the exact version where that changed nor whether it's also in an available 8.0.1xx SDK. Is updating the SDK versions we use in release/7.0 and main a viable workaround now @rainersigwald @dsplaisted❔

If release/7.0 is still likely to hit this, suggest backporting the DOTNET_CLI_DO_NOT_USE_MSBUILD_SERVER to that Arcade branch (if you haven't already) @MattGal

Separately, note this can impact integration and e2e testing on Helix agents. In aspnetcore, we added the environment variable in our test driver. But maybe it should be included in the Python code that does "stuff" for Helix work items❔

/cc @Chrisboh @ilyas1974 @steveisok @carlossanlop

[rainersigwald]

MSBuild Server is off by default in the GA build of 7.0.100 and 8.0 dailies, though there might have been a few 8.0 builds before that became true. If you're within the last week you should be fine. Updating to 7.0.100 GA should be viable after it releases but I don't think it's usable today because of packages.