title: terminating a spark step in aws
body: <p>I want to set up a series of spark steps on an EMR spark cluster, and terminate the current step if it's taking too long. However, when I ssh into the master node and run hadoop jobs -list, the master node seems to believe that there is no jobs running. I don't want to terminate the cluster, because doing so would force me to buy a whole new hour of whatever cluster I'm running. Can anyone please help me terminate a spark-step in EMR without terminating the entire cluster?</p>