Why isn't "Used Application Master Resources" empty?????

[#1]

Hi.

First of all, I'm not good at English.

So please understand my English 🙂

Now, I have no any application on YARN.

But, "Used Application Master Resources" isn't empty!!!

Especially, when actual applicaion is running, a lot of job become pending state...

Is there great guy to help me? ㅠ_ㅠ

Thank you to read my question.