In Ambari Managed clusters you cam use Ambari Metrics Collector to monitor your resources.
Also ambari provides various Alert Notification Features that you can use (Like SNMP / E_Mail) notifications: https://docs.hortonworks.com/HDPDocuments/Ambari-22.214.171.124/bk_ambari-operations/content/managing_notif...
A good article with detailed steps for Email Notification: https://community.hortonworks.com/articles/40361/how-to-troubleshoot-ambari-alerts-notification.html
@ASIF Khan -- Additionally:
From one of my old thread i am posting the content here:https://community.hortonworks.com/questions/118016/can-someone-share-the-video-link-or-website-link-...
It is better to use Ambari Metrics Collector for Hortonworks HDP monitoring. It also offers Grafana to visualize the statistics and metrics in more useful manner.
In Earlier version of Ambari used to include the plugin capability with Nagios and Ganglia however those were removed due to following limitations. https://issues.apache.org/jira/browse/AMBARI-5707
So recommended way is to use AMS (Ambari Metrics Collector Service).https://docs.hortonworks.com/HDPDocuments/Ambari-126.96.36.199/bk_ambari-operations/content/ams_architectu...
I have not practically tested HBase monitoring with Nagios , However the following links promising: