Every administrator will have to monitor the health of their clusters and will want to be notified of issues before they turn out to be major problems. There are several tools and techniques available within Cloudera Manager to monitor a Hadoop cluster. In this chapter, we will cover the following topics:
Monitoring Hadoop services from Cloudera Manager
Understanding events and alerts in Cloudera Manager
Monitoring a Hadoop cluster is a complex process as there are several services that interact with each other over the network. All of these components need to be actively monitored to identify and pinpoint the root cause for any issue that occurs. Cloudera Manager is a comprehensive cluster management application that provides a host of tools to monitor a Hadoop cluster.