Mentioned below are the numerous schedulers that are available in YARN:
FIFO Scheduler: The first-in-first-out (FIFO) scheduler places all the applications in a single queue and executes them in the same order as their submission. As the FIFO scheduler can block short applications due to long-running applications, it is less efficient and desirable for professionals.
Capacity Scheduler: A different queue makes it possible to start executing short-term jobs as soon as they are submitted. Unlike in the FIFO scheduler, the long-term tasks are completed later in the capacity scheduler.
Fair Scheduler: The fair scheduler, as the name suggests, works fairly. It balances the resources dynamically between all the running jobs and is not required to reserve a specific capacity for them.