Here is the actual solution to uninstalling the lower version of JAVA located in the /usr/jdk-1.6.0_31-fcs.x86_64 directory. Determine if this java version was installed using RPM Open the Terminal Window Login as the super user Try to find the package by typing: rpm -qa Copy the long list of packages to a text editor so you can check for jdk-1.6.0_31-fcs.x86_64 Do a find for 'jdk-1.6.0_31-fcs.x86_64' If found, it was installed using RPM and should be uninstalled using RPM Go back to the Terminal Window RPM Uninstall Verify the directory is there by going to the /usr/java directory and listing it's contents cd /usr/java ls -l Check to see what your JAVA_HOME variable is set to $JAVA_HOME returns jdk-1.6.0_31-fcs.x86_64 Remove the lower version of Java using the RPM rpm -e jdk-1.6.0_31-fcs.x86_64 Verify the directory has been removed ls -l Exit the Terminal Window Exit Open the Termina Window and login as the Super User Verify the JAVA_HOME has changed to the correct version of Java $JAVA_HOME Results should be the correct version of Java, not the old jdk-1.6.0_31-fcs.x86_64 or whatever version yours is that needed to be removed. Repeat 2-4 for each node in your cluster. This is what I actually had to do to remove the offending version of Java and ensure that all nodes were running on the same version of JAVA.
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