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单节点集群安装权限错误

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单节点集群安装权限错误

命令是 bin/start-all.sh

hadoop@user-HP-dx2480-MT-NA125PA:/usr/local/hadoop/hadoop$ bin/start-all.sh

错误

mv: cannot move `/usr/local/hadoop/hadoop/bin/../logs/hadoop-hadoop-namenode-user-HP-dx2480-MT-NA125PA.out.4' to `/usr/local/hadoop/hadoop/bin/../logs/hadoop-hadoop-namenode-user-HP-dx2480-MT-NA125PA.out.5': Permission denied
mv: try to overwrite `/usr/local/hadoop/hadoop/bin/../logs/hadoop-hadoop-namenode-user-HP-dx2480-MT-NA125PA.out.4', overriding mode 0644 (rw-r--r--)? 
mv: try to overwrite `/usr/local/hadoop/hadoop/bin/../logs/hadoop-hadoop-namenode-user-HP-dx2480-MT-NA125PA.out.3', overriding mode 0644 (rw-r--r--)? 
mv: try to overwrite `/usr/local/hadoop/hadoop/bin/../logs/hadoop-hadoop-namenode-user-HP-dx2480-MT-NA125PA.out.2', overriding mode 0644 (rw-r--r--)?

有什么解决办法吗？

答案1

这似乎是权限问题。尝试使用sudo命令执行 start-all。

答案2

  1. 创建用户

      sudo addgroup hadoop    
  sudo adduser --ingroup hadoop hduser

  2. 添加以下行将 hduser 添加到 sudoers 中，vi /etc/sudoers

     hduser (ALL)=(ALL) ALL

  3. 更改 Hadoop 所有者

     chown  -R hduser:hadoop hadoop

其中hduser→ 用户名，hadoop→ 组名

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