Why were Nagios and Ganglia in Ambari 1.7 replaced with Ambari Metrics in Ambari 2.0

Question

I am fairly new to ambari and am wondering why Nagios and Ganglia in version 1.7 of ambari were replaced with "ambari metrics" in ambari 2.0+ ?

In terms of: 1- performance 2- features 3- and services

was there any clear advantage ?

Thanks

Answer 1

It is only for performance. Refer the JIRA https://issues.apache.org/jira/browse/AMBARI-5707

Couple of issues with Ambari-metrics,

When you are using Ambari Metrics, ensure that you make it distributed, so that there will not be any bottle-neck.

Ambar-metrics stores the data in HBase and sometimes you may see loging to Ambari UI is very very slow. When you face such issues, then you need to restart the HBase & Ambari Metrics. However, Ambari-metrics is better than Nagios & Ganglia