Introducing Hue Job Browser
The Hue Job Browser application enables 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 double-click a job to view 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.
Contents
Job Browser Installation and Configuration
Job Browser is one of the applications that is installed as part of Hue. For more information about installing Hue, see Hue Installation.
Starting Job Browser
To start Job Browser, click the Job Browser tab in the navigation bar at the top of the Hue web page.
If there are no jobs running, the Welcome to the Job Browser page opens, with links to the Job Designer and Beeswax.
If there are jobs running, then the Job Browser List window opens.
Filtering the Job Browser List
To filter the jobs displayed in the Job Browser list:
- To filter the jobs by their state (such as Running or Completed), choose a state from the Filter Jobs menu.
- To filter by a user who ran the jobs, enter the user's name in the User Name Filter query box.
- To filter by job name, enter the name in the Text Filter query box.
- To clear the filters, choose All States from the Filter Jobs menu and delete any text in the User Name Filter and Text Filter query boxes.
Viewing Job Information and Logs
To view job information and logs:
- In the Job Browser window, double-click the job you want to view.
The recent tasks associated with the job is displayed.
- To view the attempts for a task, double-click the task.
The attempts associated with the task are displayed.
- To view information about a task attempt, click the Metadata tab.
The metadata associated with the attempt is displayed.
- To view the Hadoop counters for a task attempt, click the Counters tab.
The counters associated with the attempt is displayed.
- Click the Logs tab.
The logs associated with the task attempt is displayed.
- To return to the list of tasks for the current job, click the job number next to Job near the top of the window.
Viewing Job Output
To view job output:
- In the Job Browser window, double-click the job.
- To view the output of the job, click the link next to Output at the top of the screen.