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hadoop-3.1.0启动hadoop集群时还有可能可能会报如下错误:
[root@localhost sbin]# start-all.sh
Starting namenodes on [hadoop]
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 [hadoop]
ERROR: Attempting to operate on hdfs secondarynamenode as root
ERROR: but there is no HDFS_SECONDARYNAMENODE_USER defined. Aborting operation.
2018-07-16 05:45:04,628 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Starting resourcemanager
ERROR: Attempting to operate on yarn resourcemanager as root
ERROR: but there is no YARN_RESOURCEMANAGER_USER defined. Aborting operation.
Starting nodemanagers
ERROR: Attempting to operate on yarn nodemanager as root
ERROR: but there is no YARN_NODEMANAGER_USER defined. Aborting operation.
解决方案一：
输入如下命令，在环境变量中添加下面的配置
vi /etc/profile然后向里面加入如下的内容
export HDFS_NAMENODE_USER=rootexport HDFS_DATANODE_USER=rootexport HDFS_SECONDARYNAMENODE_USER=rootexport YARN_RESOURCEMANAGER_USER=rootexport YARN_NODEMANAGER_USER=root输入如下命令使改动生效
source /etc/profile解决方案二：
将start-dfs.sh，stop-dfs.sh(在hadoop安装目录的sbin里)两个文件顶部添加以下参数
HDFS_DATANODE_USER=rootHADOOP_SECURE_DN_USER=hdfsHDFS_NAMENODE_USER=rootHDFS_SECONDARYNAMENODE_USER=root将start-yarn.sh，stop-yarn.sh(在hadoop安装目录的sbin里)两个文件顶部添加以下参数
YARN_RESOURCEMANAGER_USER=rootHADOOP_SECURE_DN_USER=yarnYARN_NODEMANAGER_USER=root关于“hadoop启动报错ERROR: Attempting to operate怎么解决”这篇文章的内容就介绍到这里，感谢各位的阅读！相信大家对“hadoop启动报错ERROR: Attempting to operate怎么解决”知识都有一定的了解，大家如果还想学习更多知识，欢迎关注编程网行业资讯频道。
