Hadoop升级(No HA) 2.2升级到2.6

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[hadoop@hadoop-master1 ~]$ tar zxvf hadoop-2.6.3.tar.gz

[hadoop@hadoop-master1 ~]$ cd hadoop-2.6.3/share/
[hadoop@hadoop-master1 share]$ rm -rf doc/

[hadoop@hadoop-master1 hadoop-2.6.3]$ rm -rf lib/native/*

#// 拷贝四个配置文件到hadoop-2.6.3
[hadoop@hadoop-master1 hadoop-2.6.3]$ cd etc/hadoop/
[hadoop@hadoop-master1 hadoop]$ cp -f ~/hadoop-2.2.0/etc/hadoop/*-site.xml ./
[hadoop@hadoop-master1 hadoop]$ cp -f ~/hadoop-2.2.0/etc/hadoop/slaves ./

[hadoop@hadoop-master1 hadoop]$ cd
[hadoop@hadoop-master1 ~]$ for h in hadoop-master2 hadoop-slaver1 hadoop-slaver2 hadoop-slaver3 ; do rsync -vaz --delete --exclude=logs hadoop-2.6.3 $h:~/ ; done

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[hadoop@hadoop-master1 hadoop-2.6.3]$ sbin/start-dfs.sh -upgrade

// 2.2和2.6都没有这个命令
// hadoop dfsadmin -upgradeProgress status
hadoop dfsadmin -finalizeUpgrade