#upgrading hadoop from 0.2 to 2 
#upgrade won't survive re-kickstarts (3.1.44 #1# , #2# will need to be redone)
#roll osg-6.1.1-1 (3.1.44)

#upgrade roll (including creation of group zookeeper if needed)
/opt/rocks/bin/rocks add attr OSG_zookeeperuid value=406
/opt/rocks/bin/rocks add attr OSG_zookeepergid value=406
groupadd -g 406 zookeeper
rocks remove osg roll
rocks add roll osg-6.1.1-1.x86_64.disk1.iso  #include path if needed
rocks enable roll osg
cd /export/rocks/install
rocks create distro

#reinstall rocks-osg-command (make sure comes from latest roll version )
yum clean all
yum reinstall rocks-osg-command

#check command to run for upgrade
rocks sync host osg upgrade <node> test=yes

#1#upgrade hadoop
rocks sync host osg hadoop upgrade <node>
#2#reconfigure upgraded version (really needed)
rocks sync host osg hadoop <node>