6.删除符号连接
$>cd /soft/hadoop/etc
$>rm hadoop
$>ssh s251 rm /soft/hadoop/etc/hadoop
$>ssh s252 rm /soft/hadoop/etc/hadoop
$>ssh s253 rm /soft/hadoop/etc/hadoop
7.创建符号连接
$>cd /soft/hadoop/etc/
$>ln -s full hadoop
$>ssh s251 ln -s /soft/hadoop/etc/full /soft/hadoop/etc/hadoop
$>ssh s252 ln -s /soft/hadoop/etc/full /soft/hadoop/etc/hadoop
$>ssh s253 ln -s /soft/hadoop/etc/full /soft/hadoop/etc/hadoop
8.删除临时目录文件
$>sudo rm -rf *
$>ssh s251
sudo rm -rf /tmp/*
$>ssh s252
sudo rm -rf /tmp/*
$>ssh s253
sodu rm -rf /tmp/*
9.删除hadoop日志
$>cd /soft/hadoop/logs
$>rm -rf *
$>ssh s251 rm -rf /soft/hadoop/logs/*
$>ssh s252 rm -rf /soft/hadoop/logs/*
$>ssh s253 rm -rf /soft/hadoop/logs/*
10.格式化文件系统
$>hadoop namenode -format
11.启动hadoop进程
$>start-all.sh
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