Spark Web UI Doesn't Open in Yarn-Client Mode

Hi, I am running 3 mode spark cluster on EMR. While running job I see 1 executor running? Does that mean only 1 of the node is being used? ( Seems from Spark Documentation on default mode (LOCAL). When I switch to yarn-client mode the Spark Web UI doesn't open. How to view the job running

Re: Spark Web UI Doesn't Open in Yarn-Client Mode

mode spark cluster on EMR. While running job I see 1 executor running? Does that mean only 1 of the node is being used? ( Seems from Spark Documentation on default mode (LOCAL). When I switch to yarn-client mode the Spark Web UI doesn't open. How to view the job running details now ?