Let us see how we can configure Fair Scheduler using Cloudera Manager.
- Log in to Cloudera Manager and go to YARN and then click on Configuration
- Search for “Scheduler”
- Select the property “yarn.resourcemanager.scheduler.class” to “org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler“
- Add the XML file configuration in the property – “Fair Scheduler XML Advanced Configuration Snippet (Safety Valve)”
https://gist.github.com/dgadiraju/413128425dd38afa43797f1efbea7fad
- And then click on “Save Changes”
- Refresh the Yarn configuration to change the Yarn Scheduler
- Validate the scheduler configuration from the Resource Manager UI – <bigdataserver-3>:8088/cluster/scheduler