Issue title: Azure Machine learning Experiment cancel requested for 40hrs + 
 Issue body: 
I wanted to cancel an launched experiment but it was stuck in cancel request for 40hrs + as can be seen below...

The process inside the experiment was still running, logs were being updated.

The code inside was a pretty long running while (Model training) loop, however it was not doing anything special like swallowing Interrupt or Terminate signals so one would expect it to be able to be terminated in a usual way.

Is there any reason why this would happen?

![image](https://user-images.githubusercontent.com/37552529/124473005-b0719a00-dd96-11eb-9e74-83bd06e8a60c.png)


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#### Document Details

⚠ *Do not edit this section. It is required for docs.microsoft.com ➟ GitHub issue linking.*

* ID: 889f9925-878f-e2a0-262a-240e1611bce2
* Version Independent ID: 9349cb37-8107-3d5a-98d1-9a45419c64de
* Content: [Track, monitor, and analyze runs - Azure Machine Learning](https://docs.microsoft.com/en-us/azure/machine-learning/how-to-track-monitor-analyze-runs?tabs=python)
* Content Source: [articles/machine-learning/how-to-track-monitor-analyze-runs.md](https://github.com/MicrosoftDocs/azure-docs/blob/master/articles/machine-learning/how-to-track-monitor-analyze-runs.md)
* Service: **machine-learning**
* Sub-service: **core**
* GitHub Login: @swinner95
* Microsoft Alias: **shwinne**
 Comments: 
 Comment 0: Hello @JordanSimba Thanks for the feedback.

I have assigned the issue to the content author for further review and update the doc as appropriate.
 Comment 1: Hi @JordanSimba 

This issue repository is primarily intended for **documentation**-based issues. To get the best help for technical issues, you should create a support ticket in the Azure portal:

1.	Navigate to the Azure portal.
2.	Select the support question mark (?).
3.	Select Help + support
4.	Select New support request
5.	Include a link to this Issue URL in your support request.

For a more detailed guide, see [Create an Azure support request](https://docs.microsoft.com/azure/azure-portal/supportability/how-to-create-azure-support-request)
 
 
![portal-request](https://user-images.githubusercontent.com/46974588/129252394-19131f4d-26b1-4be3-b3bc-c1f30c44f687.png)

 

 Comment 2: Closing since it is not a documentation related issue. @JordanSimba please feel free to open another issue if you run into issues with the documentation. #please-close
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