Enable Fair Scheduler preemption

You can enable Fair Scheduler preemption in Cloudera Manager.

  1. In Cloudera Manager, click Clusters.
  2. Select the Cluster Name.
  3. Click Dynamic Resource Pool Configuration.
    If the cluster has a YARN service, the YARN / Resource Pool tab displays. If the cluster has an Impala service enabled, the Impala Admission Control / Resource Pool tab displays.
  4. Click the YARN tab.
  5. Click Default Settings.
  6. Click the Enable Fair Scheduler Preemption link.
  7. Select the ResourceManager Default Group checkbox.
  8. Click Save Changes.
  9. Return to the home page by clicking the Cloudera Manager logo.
  10. Click the Stale Service Restart icon that is next to the YARN service to invoke the cluster restart wizard.
  11. Click Restart Stale Services.
  12. Select Re-deploy client configuration.
  13. Click Restart Now.