The authenticity of host '211.82.83.244 (211.82.83.244)' can't be established.
2013-03-13 14:10
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[guoxiang@hadoopName conf]$ start-all.sh
starting namenode, logging to /home/guoxiang/Hadoop/hadoop-1.0.4/libexec/../logs/hadoop-guoxiang-namenode-hadoopName.out
The authenticity of host '211.82.83.244 (211.82.83.244)' can't be established.
RSA key fingerprint is b5:0e:61:8b:21:4a:27:9b:54:1e:19:9a:52:61:78:ae.
Are you sure you want to continue connecting (yes/no)? y
Please type 'yes' or 'no': yes
211.82.83.244: Warning: Permanently added '211.82.83.244' (RSA) to the list of known hosts.
211.82.83.244: starting datanode, logging to /home/guoxiang/Hadoop/hadoop-1.0.4/libexec/../logs/hadoop-guoxiang-datanode-hadoopName.out
211.82.83.244: secondarynamenode running as process 8974. Stop it first.
starting jobtracker, logging to /home/guoxiang/Hadoop/hadoop-1.0.4/libexec/../logs/hadoop-guoxiang-jobtracker-hadoopName.out
211.82.83.244: starting tasktracker, logging to /home/guoxiang/Hadoop/hadoop-1.0.4/libexec/../logs/hadoop-guoxiang-tasktracker-hadoopName.out
.ssh的目录权限不对，我对ssh没有x的执行权限，chmod +x /home/guoxiang/.ssh就可以了
执行结果：
[guoxiang@hadoopName ~]$ start-all.sh
starting namenode, logging to /home/guoxiang/Hadoop/hadoop-1.0.4/libexec/../logs/hadoop-guoxiang-namenode-hadoopName.out
211.82.83.244: starting datanode, logging to /home/guoxiang/Hadoop/hadoop-1.0.4/libexec/../logs/hadoop-guoxiang-datanode-hadoopName.out
211.82.83.244: starting secondarynamenode, logging to /home/guoxiang/Hadoop/hadoop-1.0.4/libexec/../logs/hadoop-guoxiang-secondarynamenode-hadoopName.out
starting jobtracker, logging to /home/guoxiang/Hadoop/hadoop-1.0.4/libexec/../logs/hadoop-guoxiang-jobtracker-hadoopName.out
211.82.83.244: starting tasktracker, logging to /home/guoxiang/Hadoop/hadoop-1.0.4/libexec/../logs/hadoop-guoxiang-tasktracker-hadoopName.out
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