ERROR: Cannot set priority of resourcemanager process 5222
在配置yarn的节点上查看resourcemanager日志，发现 The class to use as the resource scheduler. ...
原文：ERROR: Cannot set priority of registrydns process 33740
hdp安装yarn时，yarn registry dns无法启动。报错 ERROR: Cannot set priority of registrydns process xxxxx 原因： The default port for Registry DNS is . Check if that port is opened 修改后，保存退出，重启yarn。问题解决 ...
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