02 伪分布模式

1 Hadoop配置:修改core-site.xml、hdfs-site.xml、mapred-site.xml

2 免密码ssh设置
[root@localhost /]# ssh-keygen -t rsa
[root@localhost ~]# cd /root/.ssh
[root@localhost ~]# chmod 700 .ssh
[root@localhost .ssh]# cat id_rsa.pub >> authorized_keys
[root@localhost .ssh]# chmod 600 authorized_keys

3 Hadoop运行
[root@localhost ~]# cd /home/chenyong/paper/hadoop-1.1.2/bin
[root@localhost bin]# ./hadoop namenode -format
[root@localhost bin]# ./start-all.sh
[root@localhost bin]# ./stop-all.sh