[BUG]: Post-job: Checkout task takes ages

[ghost]

What happened?

At job finalization the Post-job: Checkout**** task takes several minutes to complete. After investigation I found following log entries repeating, which seem to be the cause.

Versions

• Agent Version 3.240.1
• Ubuntu 20.04
• Arch: ARM64

Environment type (Please select at least one enviroment where you face this issue)

• Self-Hosted
• Microsoft Hosted
• VMSS Pool
• Container

Azure DevOps Server type

dev.azure.com (formerly visualstudio.com)

Azure DevOps Server Version (if applicable)

No response

Operation system

Ubuntu 20.04 (ARM64)

Version controll system

Git

Relevant log output

`
[2024-06-19 11:45:50Z INFO VisualStudioServices] Starting operation Location.GetConnectionData
[2024-06-19 11:45:50Z WARN VisualStudioServices] Attempt 1 of GET request to https://spsprodweu1.vssps.visualstudio.com/A48c364b5-47ea-4d6b-aeba-e5d364883a51/_apis/connectionData failed (Socket Error: ConnectionReset). The operation will be retried in 11.106363 seconds.
[2024-06-19 11:46:01Z WARN VisualStudioServices] Attempt 2 of GET request to https://spsprodweu1.vssps.visualstudio.com/A48c364b5-47ea-4d6b-aeba-e5d364883a51/_apis/connectionData failed (Socket Error: ConnectionReset). The operation will be retried in 13.0322013 seconds.
[2024-06-19 11:46:14Z WARN VisualStudioServices] Attempt 3 of GET request to https://spsprodweu1.vssps.visualstudio.com/A48c364b5-47ea-4d6b-aeba-e5d364883a51/_apis/connectionData failed (Socket Error: ConnectionReset). The operation will be retried in 17.0371565 seconds.
[2024-06-19 11:46:31Z ERR  VisualStudioServices] Attempt 4 of GET request to https://spsprodweu1.vssps.visualstudio.com/A48c364b5-47ea-4d6b-aeba-e5d364883a51/_apis/connectionData failed (Socket Error: ConnectionReset). The maximum number of attempts has been reached.
[2024-06-19 11:46:31Z INFO VisualStudioServices] Finished operation Location.GetConnectionData
`

[ghost]

I tried this workaround. And it fixes the issue, but now I see this warning:

##[warning] Knob: UseLegacyHttpHandler = true Source: ${AZP_AGENT_USE_LEGACY_HTTP} (DEPRECATED) ##[warning]Legacy http handler will be removed in one of the next agent releases with migration to .Net Core 6. We are highly recommend to not use it.

[ismayilov-ismayil]

Hi @kevinerhardt-basf thanks for reporting! We are working on more prioritized issues at the moment, but will get back to this one soon.

[ghost]

It seemt to be an FW issue. After whitelisting *.visualstudio.com it works.