Cloudera manager agent installation fail due to missing of ntp package

So was trying to explore Cloudera Hadoop by following this installation guide and run into issue in bringing up cloudera manager agent (cloudera-scm-agent).

The installation GUI was complaining with below message

  Installation failed. Failed to receive heartbeat from agent.

Ensure that the host's hostname is configured properly.
Ensure that port 7182 is accessible on the Cloudera Manager Server (check firewall rules).
Ensure that ports 9000 and 9001 are free on the host being added.
Check agent logs in /var/log/cloudera-scm-agent/ on the host being added (some of the logs can be found in the installation details).

So looking at /var/log/cloudera-scm-agent/cloudera-scm-agent.log

1 2 3 4 5 6 7 8 9 10 11 12 13

[10/Sep/2015 07:57:16 +0000] 2366 Monitor-HostMonitor throttling_logger ERROR Failed to collect NTP metrics Traceback (most recent call last): File "/usr/lib64/cmf/agent/src/cmf/monitor/host/ntp_monitor.py", line 37, in collect result, stdout, stderr = self._subprocess_with_timeout(args, self._timeout) File "/usr/lib64/cmf/agent/src/cmf/monitor/host/ntp_monitor.py", line 30, in _subprocess_with_timeout return subprocess_with_timeout(args, timeout) File "/usr/lib64/cmf/agent/src/cmf/subprocess_timeout.py", line 49, in subprocess_with_timeout p = subprocess.Popen(**kwargs) File "/usr/lib64/python2.6/subprocess.py", line 642, in __init__ errread, errwrite) File "/usr/lib64/python2.6/subprocess.py", line 1234, in _execute_child raise child_exception OSError: [Errno 2] No such file or directory

So looking at /usr/lib64/cmf/agent/src/cmf/monitor/host/ntp_monitor.py, the culprit is there

     35     try:
     36       args = ["ntpdc", "-np"]
     37       result, stdout, stderr = self._subprocess_with_timeout(args, self._timeout)

As a quick fix, do a yum install ntp should help getting rid of this error.