You can use job scheduling to prioritize the MapReduce jobs and YARN applications that run on your MapR cluster.

The MapReduce system supports a minimum of one queue, named default. Hence, this parameter's value should always contain the string default. Some job schedulers, like the Capacity Scheduler, support multiple queues.

The default job scheduler is the Fair Scheduler, which is designed for a production environment with multiple users or groups that compete for cluster resources.

The MapR Distribution for Hadoop supports these job schedulers: