Here are some SNMP related definitions you’ll need to know for the purposes of using Ambari and OpenNMS: This article will not go too deep into SNMP, but if you want to know more you can always Google SNMP or checkout the wikipedia site here. SNMP is a protocol specifically for monitoring. This article assumes you are using CentOS 6 or 7 and already have HDP and Ambari 2.4 or lower running. This article focuses on OpenNMS as the monitoring management system, but the article should be able to serve as a guide for use with other systems that can consume SNMP traps. OpenNMS is an open source monitoring tool that supports SNMP, but this article should help provide enough details such that HDP monitoring can be configured for any of the other monitoring tools in the market that support SNMP. This article provides a brief overview of SNMP and a guide for how to integrate HDP platform monitoring with OpenNMS. SNMP (Standard Network Management Protocol) provides a mechanism to achieve this goal of monitoring a broad set of applications, platforms and infrastructure, and Ambari supports SNMP alerting. Therefore, a central dashboard is often used to monitor a broad set of clusters, platforms and applications. Monitoring each Ambari instance’s alerting GUI would be tedious. For instance, some operations teams have to monitor 10s or 100s of HDP clusters as well as other systems, including infrastructure related systems, third party applications and databases.
Hortonworks HDP platform uses Ambari for monitoring and alerting, but it is unrealistic, in an enterprise environment, for operations teams to monitor each instance’s monitoring interface in its own front-end.
Monitoring enterprise applications and platforms is key responsibility of operations teams.
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