yikf opened a new pull request #3093: URL: https://github.com/apache/hadoop/pull/3093
**What changes were proposed in this pull request?** Currently, We will encounter NullPointerException when we use some yarn shell commands, As follow: ``` Missing argument for options usage: queue -help Displays help for all commands. -status <Queue Name> List queue information about given queue. Exception in thread "main" java.lang.NullPointerException at org.apache.hadoop.yarn.client.cli.YarnCLI.stop(YarnCLI.java:75) at org.apache.hadoop.yarn.client.cli.QueueCLI.main(QueueCLI.java:51) ``` Like this, and ``` yarn cluster yarn queue yarn node ``` This is beacuse we dont`t init the `YarnClient` when missing argument for options, This PR will fix the issue. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org