Python 2.0 extensión ERROR Fastcheck no response

[Ecataldo88]

Hi;

We developed a Python 2.0 extension in Visual Studio that extracts DORA metrics from Gitlab and ingests them as custom metrics in Dynatrace. The problem arises when uploading the extension to Dynatrace, as the following error appears: "Failed to assign monitoring configuration to ActiveGate. Reason: Fastcheck no response - datasource exited without providing status." We followed all the steps mentioned in the documentation, but we haven't been able to determine the cause of this error.

Could you help us understand the reason for this error and how to resolve it?

[JamesKitson · Accepted solution]

There is no one cause for that, but often (especially if you haven't modified the default fastcheck) it is caused by a package dependency (i.e. pip module) being imported/used in the extension but not being properly included in the setup.py file so that it is included in the built extension - or a related issue where it is built on a platform different from the ActiveGate meaning that the specific version of a dependency is not included (e.g. built on Windows but running on Linux AG).

Regardless, to figure out the actual issue you would need to check the fastcheck logs on your ActiveGate to see what exception is showing up.

/var/lib/dynatrace/remotepluginmodule/log/extensions/datasources/<yourExtension/...fastcheck log

C:\ProgramData\dynatrace\remotepluginmodule\log\extensions\datasources\<yourExtension\...fastcheck log