Created 01-20-2017 03:17 PM
Cloudera Manager provides you with basic management of your cluster.
It helps in starting and stopping the services and carries out other activities.
If you are interested in running Hadoop without Cloudera Manager, you can use the vanilla CDH distribution present here : https://github.com/cloudera. The startup of the processes is a bit painful and you will need to follow the docs from apache to start the same.
Hope this helps.