Running yarn jobs in HADOOP HA cluster, Yarn UI showing unnecessary launched applications. Not able to understand why its happening. Can anyone help me out with this. Attaching an image here.yarn-ui.png
It's hard to figure out from your screenshot what kind of applications these are. I'd recommend you to dig deeper, find out as much about these as you can: more application info, application logs, etc. Then you should be able to stop them from spawning.