Aug  9 11:53:53 logsearch.apache.org su: pam_unix(su-l:session): session opened for user ambari-qa by (uid=0)
Aug  9 11:53:53 logsearch.apache.org su: pam_unix(su-l:session): session closed for user ambari-qa
Aug  9 11:53:53 logsearch.apache.org su: pam_unix(su-l:session): session opened for user ambari-qa by (uid=0)
Aug  9 11:53:53 logsearch.apache.org su: pam_unix(su-l:session): session closed for user ambari-qa
Aug  9 11:54:19 logsearch.apache.org su: pam_unix(su-l:session): session opened for user ambari-qa by (uid=0)
Aug  9 11:54:19 logsearch.apache.org su: pam_unix(su-l:session): session closed for user ambari-qa
Aug  9 11:54:19 logsearch.apache.org su: pam_unix(su-l:session): session opened for user ambari-qa by (uid=0)
Aug  9 11:54:19 logsearch.apache.org su: pam_unix(su-l:session): session closed for user ambari-qa
Aug  9 11:54:22 logsearch.apache.org su: pam_unix(su-l:session): session opened for user yarn by (uid=0)
Aug  9 11:54:22 logsearch.apache.org su: pam_unix(su-l:session): session closed for user yarn
Aug  9 11:54:22 logsearch.apache.org su: pam_unix(su-l:session): session opened for user yarn by (uid=0)