Hadoop單機模式以及僞分佈模式

jdk安裝 wget --no-check-certificate --no-cookies --header "Cookie:oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u131-bll/d54c1d3a095b4ff2b6607d096fa80163/jdk-8u1

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