dataflow infinite load

[tbd]

I have some large datasets I'm working with and I can't get them to load in a dataflow. I'd estimate I'm working with around 3-4 million rows. The one ran 3 hours then failed, but it won't stop spinning as if it is loading. I can't cancel it. I have another one attempting to load as well and it is just spinning. I also cannot cancel it's load. 

How do I delete these or cancel them? They're just stuck and I'm not getting anywhere. Also I feel like the dataflows should be able to handle this load? Why is this taking so dang long. We're making a gateway connection to a mysql database, is that it?

[lbendlin]

If these are on a premium capacity you can remove and re-add the workspace from/to the capacity.  That will kill all pending processes.