Hadoop 2.7.3 完全分布式维护-动态增加datanode篇

原有环境 http://www.cnblogs.com/ilifeilong/p/7406944.html  IP       host JDK linux hadop role 172.16.101.55 sht-sgmhadoopnn-01 1.8.0_111 CentOS release 6.5 hadoop-2.7.3 NameNode,SecondaryNameNode,Resource

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