Could be due to YARN-9606, got committed today itself. https://issues.apache.org/jira/browse/YARN-9606 The last build in the JIRA had -1 on shadedclient. https://issues.apache.org/jira/browse/YARN-9606?focusedCommentId=17078443&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-17078443
tried locally was working without for me, couldn't check further to be completely sure. can give a check...