gistfile1.txt

root@ip-10-212-75-158:~# export JAVA_HOME=/opt/java/jdk1.7.0_10
root@ip-10-212-75-158:~# ls $JAVA_HOME
bin        include  LICENSE      release                             THIRDPARTYLICENSEREADME.txt
COPYRIGHT  jre      man          src.zip
db         lib      README.html  THIRDPARTYLICENSEREADME-JAVAFX.txt
root@ip-10-212-75-158:~# service hadoop-0.20-mapreduce-tasktracker start
+======================================================================+
|      Error: JAVA_HOME is not set and Java could not be found         |
+----------------------------------------------------------------------+
| Please download the latest Sun JDK from the Sun Java web site        |
|       > http://java.sun.com/javase/downloads/ <                      |
|                                                                      |
| Hadoop requires Java 1.6 or later.                                   |
| NOTE: This script will find Sun Java whether you install using the   |
|       binary or the RPM based installer.                             |
+======================================================================+
root@ip-10-212-75-158:~#