使用root配置的hadoop启动时报错

一、报错信息:

  Starting namenodes on [master]

        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 [slave1]
        ERROR: Attempting to operate on hdfs secondarynamenode as root
        ERROR: but there is no HDFS_SECONDARYNAMENODE_USER defined. Aborting operation.
二、解决办法
在/hadoop/sbin路径下: 
start-dfs.sh,stop-dfs.sh两个文件顶部添加以下参数

HDFS_DATANODE_USER=root
HDFS_DATANODE_SECURE_USER=hdfs
HDFS_NAMENODE_USER=root
HDFS_SECONDARYNAMENODE_USER=root

如下图:

start-yarn.sh,stop-yarn.sh顶部也添加以下参数
YARN_RESOURCEMANAGER_USER=root
HADOOP_SECURE_DN_USER=yarn
YARN_NODEMANAGER_USER=root

 如下图:

 

三、添加完启动遇到如下警告:

WARNING: HADOOP_SECURE_DN_USER has been replaced by HDFS_DATANODE_SECURE_USER.

需要将第二句:HADOOP_SECURE_DN_USER=hdfs  改为 HDFS_DATANODE_SECURE_USER=hdfs  

posted @ 2019-07-04 16:51  Mr_nie  阅读(...)  评论(...编辑  收藏