I acknowledge that it's possible to stop an executing job with right-click (or CTRL & right-click) but wonder if it's possible to stop a data sample that's taking too long (possibly stalled).
I believe that the sluggishness in returning sample data, is down to Tomcat (JVM?) memory issues and is resolved when the service is restarted.
Thanks for sharing your resolution @gareth.gough
Alternatively if someone needed to end the sample, they could kill it at the cloud data warehouse side also.
Have a great day and thank you again.
Joe