Nagios is a powerful open source cluster monitoring system. It can monitor not only hosts and servers but also interconnecting devices such as routers and switches. The alerting services provide notification mechanisms for fast response on system problems.
Designed to be a generic monitoring system, Nagios can be configured to monitor Hadoop clusters. In this recipe, we will outline steps to configure Nagios for Hadoop cluster monitoring.
Perform the following steps before monitoring a Hadoop cluster with Nagios:
yumcommand to install Nagios: