The Job Browser application lets you to examine the Hadoop MapReduce jobs running on your Hadoop cluster. Job Browser presents the job and tasks in layers. The top layer is a list of jobs, and you can link to a list of that job's tasks. You can then view a task's attempts and the properties of each attempt, such as state, start and end time, and output size. To troubleshoot failed jobs, you can also view the logs of each attempt.
Job Browser is one of the applications installed as part of Hue. For information about installing and configuring Hue, see Hue Installation in http://www.cloudera.com/content/cloudera-content/cloudera-docs/CDH4/latest/CDH4-Installation-Guide/CDH4-Installation-Guide.html.
Job Browser can display both MRv1 and MRv2 jobs, but must be configured to display one type at a time. See MapReduce (MRv1) and YARN (MRv2) Cluster Configuration in CDH4 Installation.
To view job information for an individual job:
To view details about the tasks associated with the job:
To view information about an individual task:
To view details about a task attempt: