Iam afraid because i execute this on the namenode, it was a mistake:
python /usr/lib/python2.6/site-packages/ambari_agent/HostCleanup.py --silent --skip=users
how can i fix it??? restore the machine???
Please paste output of above command i.e. HostCleanup result /var/lib/ambari-agent/data/hostcleanup.result to see command has partially completed or completed successfully..