I am also having this same issue! This issue is intermittant. There is no need for a screenshot. I try to launch the spark-shell using:
spark-shell --master yarn \
--conf spark.ui.port=19191 \
--num-executors 1 \
once it start up, it starts spitting out
INFO Client: Application report for application_1528528985359_0491 (state: ACCEPTED)
over and over and over, and doesn’t stop. The only way to stop it is by ctrl-C, which kills the spark-shell. It doesn’t matter which port number is used; I have tried with all different port numbers. This basically makes the bigdata-labs unuseable for my studies if I can’t start the shell. Please explain how to work around this issue!