Intermittent failure to restore IBC optimization data

[runfoapp]

Runfo Tracking Issue: Intermittent failure to restore IBC optimization data

Definition	Build	Kind	Job Name
runtime	1097184	Rolling	Build Linux arm Release AllSubsets_Mono
runtime	1096348	PR 51200	Installer Build and Test coreclr Linux_musl_arm64 Debug
runtime	1095579	PR 51488	Libraries Build Linux_musl arm64 Release
runtime	1094759	PR 51439	Libraries Build Linux_musl arm Release
runtime	1094469	PR 51440	Mono Product Build Linux arm64 release

Build Result Summary

Day Hit Count	Week Hit Count	Month Hit Count
1	5	5

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Issue Details

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Runfo Tracking Issue: Intermittent failure to restore IBC optimization data

Definition	Build	Kind	Job Name
runtime	1097184	Rolling	Build Linux arm Release AllSubsets_Mono
runtime	1096348	PR 51200	Installer Build and Test coreclr Linux_musl_arm64 Debug
runtime	1095579	PR 51488	Libraries Build Linux_musl arm64 Release
runtime	1094759	PR 51439	Libraries Build Linux_musl arm Release
runtime	1094469	PR 51440	Mono Product Build Linux arm64 release

Build Result Summary

Day Hit Count	Week Hit Count	Month Hit Count
1	5	5

Author:	runfoapp[bot]
Assignees:	-
Labels:	area-Infrastructure, untriaged
Milestone:	-

[jeffschwMSFT]

@agocke do we still have IBC in our pipeline or is the name of the stage just not been updated?

[hoyosjs]

@jeffschwMSFT IBC comes from arcade support, it's looking for these IBC data packages:

These are available at https://dev.azure.com/dnceng/public/_packaging?_a=package&feed=dotnet6-transport&package=optimization.linux-x64.IBC.CoreCLR&protocolType=NuGet&version=99.99.99-master-20200806.6&view=overview. Not sure why they are not restored

[jeffschwMSFT]

Thanks! The root of my question is that since we are moving from the ibc format to mibc, I was curious if we were just reusing the name or if we still were flowing ibc data.

[hoyosjs]

These are old packages (newest is February), so there's no flow. As for if it's used, I am not sure if that part is still hooked.

[agocke]

@davidwrighton would know for sure, but I see the same packages coming out of dotnet-optimization with what looks like fresh mibc files in them.

[hoyosjs]

The mIBC packages are slightly different: optimization.windows_nt-x86.mibc.runtime. After talking to @ViktorHofer, this is a previously-seen NuGet issue where packages are not getting downloaded, but there's no error getting reported.

[davidwrighton]

Flow is almost there, but as @hoyosjs says this is a nuget problem. If someone knows how to reduce the likelihood of this fault. I'd be happy to help, but without that, I don't think I can do anything here.