Nagios is an Open Source monitoring application which allows users to identify infrastructure problems before they impact on important business processes. Nagios monitors the entire IT infrastructure to ensure services, applications and business processes are working as expected.
In the case of critical problems in the infrastructure, Nagios can alert the IT department. That allows them to start fixing any issues as early as possible, before they affect the business processes.
In this chapter we describe how to monitor the Talend ESB infrastructure using Nagios.