How to retry a workflow, of which one step failed?

[DemetriouJohn]

Occasionally, a step may fail because of network connectivity or any issue. I do not see anywhere in the docs a possibility to restart the workflow from the step it failed during its previous run.

Resume workflow only resumes previously suspended workflows.

[danielgerlag]

You can configure a step to have retry behavior - https://workflow-core.readthedocs.io/en/latest/error-handling/

[DemetriouJohn]

Maybe I was not clear enough in my question. What I meant was, How can I resume a previous failed workflow, on a later time, on demand. e.g step 5 of a 10 step workflow failed due to remote server issues. Remote server is fixed 2 hours later, Resume previously failed workflow, starting from failed step.

Similar logic to a Suspended workflow, only this one has failed and the step that has failed, needs to re-run

[danielgerlag]

Should you be terminating the workflow if you intend to retry it later?

[DemetriouJohn]

How would you suggest to handle this?

[danielgerlag]

You can set the default error behavior per workflow.

public void Build(IWorkflowBuilder<object> builder)
{
    builder                
        .UseDefaultErrorBehavior(WorkflowErrorHandling.Suspend)
        .StartWith<HelloWorld>()                
        .Then<GoodbyeWorld>();
}

or per step

public void Build(IWorkflowBuilder<object> builder)
{
    builder                
        .StartWith<HelloWorld>()                
        .Then<GoodbyeWorld>()
            .OnError(WorkflowErrorHandling.Suspend);
}

[DemetriouJohn]

This is mostly working so far, but quite often, some workflows, even though they are set to suspend on error, they actually fail instead.