Re-install Cluster on Xen 6.0.2

As title, just because we updated Xen to version 6.0.2 .
Following is some problems faced while installing.

Note that the following things should be install as a "Base System" that can be cloned to make new VM.

1. Java Environment
2. Jade Environment
3. Hadoop Enviornment

Note that Hadoop setup procedure is not written in this article.