Hi Smith, How did you set the $JAVA_HOME?
Can you set JAVA_HOME permanently in /etc/profile and try running again? Thanks Devaraj ________________________________________ From: smith jack [thinke...@gmail.com] Sent: Thursday, May 17, 2012 3:29 PM To: general@hadoop.apache.org Subject: what's wrong? i have set JAVA_HOME, but the error tells i haven't set it:( [jack@localhost tools]$ echo $JAVA_HOME /home/jack/dsk/tools/gov/jdk1.6.0_12 [jack@localhost tools]$ hadoop Error: JAVA_HOME is not set and could not be found. the version of hadoop i use is 0.23.0