Can’t get Hadoop Datanode but didn’t show any error .Therefore can’t know which is resource of error

I have a question. I’m currently taking a project to build data governance.

I have already connected master ip and slave1 ip to each other. Then, I have made ssh keys and copied.

I don’t think I have any errors about network.

Next, I tried to use hadoop as follow.

     hdfs namenode -format 

and I got a warning indicating

   WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable 

Although I got a warning sign, i don’t think it is a problem. However, I can’t get datanode after running and start-yarn even without any issue


[run start-dfs and yarn]

Can someone tell me why I get this problem?

Hadoop configure I get is as below: