StepSequence in v1 no longer available in AzureML v2

[newhardwarefound]

Related command

az ml job create

Is your feature request related to a problem? Please describe.

I am frustrated when trying to get one AML step to start after another AML step in a pipeline, when there are no input/output files between the 2 steps. It's a useful v1 feature (https://learn.microsoft.com/en-us/python/api/azureml-pipeline-core/azureml.pipeline.core.stepsequence?view=azure-ml-py) that is removed in v2. Airflow also supports it naturally. Right now I have to modify like 6 different files to add a placeholder parameter for the 2 successive steps.

Describe the solution you'd like

Add a field called prerequisites in the pipelinecommandjob yaml so that i can specify which steps need to complete before starting the current step.

Describe alternatives you've considered

Additional context

[yonzhan]

Thank you for opening this issue, we will look into it.

Thanks for the feedback! We are routing this to the appropriate team for follow-up. cc @azureml-github.

Issue Details

---

Related command

az ml job create

Is your feature request related to a problem? Please describe.

I am frustrated when trying to get one AML step to start after another AML step in a pipeline, when there are no input/output files between the 2 steps. It's a useful v1 feature (https://learn.microsoft.com/en-us/python/api/azureml-pipeline-core/azureml.pipeline.core.stepsequence?view=azure-ml-py) that is removed in v2. Airflow also supports it naturally. Right now I have to modify like 6 different files to add a placeholder parameter for the 2 successive steps.

Describe the solution you'd like

Add a field called prerequisites in the pipelinecommandjob yaml so that i can specify which steps need to complete before starting the current step.

Describe alternatives you've considered

Additional context

Author:	newhardwarefound
Assignees:	-
Labels:	Service Attention, Machine Learning, customer-reported
Milestone:	-

[Uranium2]

It is indeed very frustrating. For me it's the only blocking point to migrate my scripts to V2.

[tdegamboda]

Are there any updates on this?

[Uranium2]

@tdegamboda @newhardwarefound
I made a tool on my own to get something similar, to create a worflow of steps (command/node in V2 namming) without worring about the Inputs/Outputs. It will run your steps in the order you gave in a graph.

https://stackoverflow.com/a/77354028/5462743

[ditlevrisdahl]

Any updates yet? Its still not part of v2?