what are the alternative to Ambari? Can we manage hadoop eco system without Ambari?

[#1]

what are the alternative to Ambari? Can we manage hadoop eco system without Ambari?

[#2]

@RZ0 

Ambari or Cloudera Manager is an admin UI to make our lives easier. Yes you can run a cluster without Ambari because all the admin scripts [start,stop, status] and Ambari/Ranger/Atlas use API's so the effort will be in the scripting.
You will miss the Metrics in one place option of Ambari UI 

Hope that answers 

[#3]

@RZ0 Has the reply helped resolve your issue? If so, please mark the appropriate reply as the solution, as it will make it easier for others to find the answer in the future. Thanks!