使用root用户配置的hadoop集群启动报错：ERROR: Attempting to operate on hdfs namenode as root

最新推荐文章于 2024-02-20 18:41:33 发布
最新推荐文章于 2024-02-20 18:41:33 发布
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前几天在虚拟机上自己搭建了一个集群，然后因为工作就一直也没管。今天启动的时候，发现报错了。还以为是自己在搭建的时候有问题呢。然后第二次搭建完成之后，启动还是报错。就上网查。
大致报错信息如下：

[root@master hadoop]# start-dfs.sh 
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 [master]
ERROR: Attempting to operate on hdfs secondarynamenode as root
ERROR: but there is no HDFS_SECONDARYNAMENODE_USER defined. Aborting
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