but there is no HDFS_NAMENODE_USER defined. Aborting operation._hdfs namenode user

错误信息

Starting namenodes on [cpucode100]
ERROR: Attempting to operate on hdfs namenode as root
ERROR: but there is no HDFS_NAMENODE_USER defined. Aborting operation.
Starting datanodes
ERROR: Attempting to operate on hdfs datanode as root
ERROR: but there is no HDFS_DATANODE_USER defined. Aborting operation.
Starting secondary namenodes [cpucode101]
ERROR: Attempting to operate on hdfs secondarynamenode as root
ERROR: but there is no HDFS_SECONDARYNAMENODE_USER defined. Aborting operation.

解决方案

vim /etc/profile.d/my_env.sh
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内容 :

export HDFS_NAMENODE_USER=root
export HDFS_DATANODE_USER=root
export HDFS_SECONDARYNAMENODE_USER=root
export YARN_RESOURCEMANAGER_USER=root
export YARN_NODEMANAGER_USER=root
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让新的环境变量 PATH 生效

source /etc/profile
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sudo /usr/local/sbin/xsync /etc/profile.d/
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