Hadoop on Windows - “Error JAVA_HOME is incorrectly set.”

Question

I\'m trying to get Hadoop running \'Local Mode\' on my Windows machine. I\'ve been using this guide: http://hadoop.apache.org/docs/r1.2.1/single_node_setup.html

When

Answer 1

in hadoop-config.xml， the logic is

if not exist %JAVA_HOME%\bin\java.exe ( echo Error: JAVA_HOME is incorrectly set. echo Please update %HADOOP_HOME%\conf\hadoop-env.cmd goto :eof )

if your java environment path contains space, such as "C:\Program Files\java\xxxxx" , the word 《Program Files》 contains a space, so CMD can't identificate

SO your can change the path instead.