What level of hardware monitoring is done by HDP / Node Manager in HDP 2.2.4.2 versus HDP 2.4.0?

[#1]

One customer wants to know the details about hardware monitoring differences between HDP 2.2.4.2 and HDP 2.4.0. Any ideas, guys? Really appreciate if you could provide some documents as well.

[#2]

I would check out code for both branches and do a diff in Ambari agent directory

https://github.com/apache/ambari/tree/trunk/ambari-agent/src/main/python/ambari_agent

Found this class but there are many more to look at ambari/ambari-agent/src/main/python/ambari_agent/Hardware.py

[#3]

@Victor Xu

I will be educating the customer that Ambari Metric Service "AMS" features is dependent on Ambari server version.

Ambari 2.2.1 --> http://docs.hortonworks.com/HDPDocuments/Ambari-2.2.1.0/bk_Ambari_Users_Guide/content/_modifying_the...

Good news is that Ambari 2.2.1 is compatible with HDP 2.2 (deprecated)

http://docs.hortonworks.com/HDPDocuments/Ambari-2.2.1.0/bk_Installing_HDP_AMB/content/_determine_sta...

Let's say that you are using Ambari 2.1 ..You can go to docs.hortonworks.com and click the particular version

http://docs.hortonworks.com/HDPDocuments/Ambari-2.1.2.1/bk_Ambari_Users_Guide/content/ch_monitoring_...