Monitoring the scheduling policy from the cluster management console

View configured properties at the application and job levels and monitor the M:R ratio for an application from the cluster management console.

• View properties for the scheduling policy at the application level.
  1. From the cluster management console Dashboard, select Workload > MapReduce > Applications.
     A list of application displays.
  2. Select an application.
  3. In the application's Summary tab, click Configuration and view MapReduce Resource Allocation Settings.
• View properties for the scheduling policy at the job level.
  1. From the Dashboard's Common Tasks menu, select MapReduce Workload.

     The console opens in a new window.

  2. Select Workload > MapReduce > Jobs.

     A list of jobs displays.

  3. Select a job.
  4. In the job's Summary tab, click Job Properties to view the Map Resource Group Filter, Reduce Resource Group Filter, and the Reduce Service to Slot Ratio for the job.
• Monitor the M:R ratio for the application from the application's Summary tab. Click Runtime Information to view Allocation per host based on Target Ratio. You can also view the total number of map slots and reduce slots, and the total number of map slots running reduce tasks and reduce slots running map tasks.