This recipe describes how to use the Hadoop monitoring web console to verify Hadoop installation, and to monitor the allocations and uses of each part of the Hadoop cluster.
How to do it...
Now let us visit the Hadoop monitoring web console.
Access http://MASTER_NODE:50030/ using the browser where MASTER_NODE is the IP address of the master node.
The web page shows the current status of the MapReduce installation, including running and completed jobs.
How it works...
Hadoop monitoring UI lets users access the JobTracker of the Hadoop installation and find different nodes in the installation, their configurations, and usage. For example, users can use the UI to see current running jobs and logs associated with the jobs.