Schedulers Overview

Let us go through the overview of schedulers. YARN supports three types of Schedulers – FIFO Scheduler, Fair Scheduler, and Capacity Scheduler.

  • FIFO Scheduler – default with plain vanilla Hadoop and typically used for exploratory purposes.
  • Fair Scheduler – Resources will be allocated to all the subsequent jobs in Fair Manner, default with Cloudera distribution.
  • Capacity Scheduler – Nothing but FIFO Scheduler within each queue, default with Hortonworks distribution.

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