使用root配置的hadoop启动时报错

发布时间：2020-12-13 23:15:14 所属栏目：Linux 来源：网络整理

导读：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 ???????

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：?

将 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WARNING: HADOOP_SECURE_DN_USER has been replaced by HDFS_DATANODE_SECURE_USER.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??

（编辑：李大同）

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