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  • 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    WARNING: HADOOP_SECURE_DN_USER has been replaced by HDFS_DATANODE_SECURE_USER.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  

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  • 原文地址:https://www.cnblogs.com/Mr-nie/p/11133416.html
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