Python 2.6.6 issues the following warning when running the "hod" command:
/homes/jbarber/hadoop-1.1.2/contrib/hod/hodlib/Common/threads.py:19: DeprecationWarning: The popen2 module is deprecated. Use the subprocess module.
from popen2 import Popen4, Popen3, MAXFD
The popen2 module was deprecated in Python 2.6.
The attached patch replaces the usage of popen2 with the subprocess module.