Sharing the steps of building Hadoop environment under Linux

• Java

1. Download the Hadoop package WGet http://apache.freelamp.com/hadoop/core/stable/hadoop-0.20.2.tar.gz 2、tar xvzf hadoop-0.20. 2.tar. GZ 3. Install JDK and download JDK directly from Oracle website at: http://www.oracle.com/technetwork/java/javase/downloads/index.html 4、chmod +x jdk-6u21-linux-i586. bin;./ jdk-6u21-linux-i586. Bin, jdk1.0 appears in the current directory 6.0_ 21 directory 5. Configure Java environment variable VI / etc / profile

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