大数据Hadoop伪分布式集群搭建

安装hadoop ------------------- 1.安装jdk a)下载jdk-8u65-linux-x64.tar.gz b)tar开 $>su centos ; cd ~ $>mkdir downloads $>cp /mnt/hdfs/downloads/bigdata/jdk-8u65-linux-x64.tar.gz ~/downlooads $>tar -xzvf jdk-8

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