service zenoss stop
yum remove zenoss mysql-server mysql-client mysql-shared rabbitmq-server redis memcached
rpm -ef --nodeps MySQL-shared-compat
rm -rf /var/lib/mysql/
rm -rf /var/lib/rabbitmq/
rm -rf /opt/zenoss
userdel zenoss
rm -rf /home/zenoss
mysql -u root
show databases;
drop database zenoss_zep;
drop database zodb;
drop database zodb_session;