An updated feature comparison between Capacity Scheduler and Fair Scheduler

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INTRODUCTION

As every Hadoop YARN user knows, YARN has two schedulers: fair scheduler and capacity scheduler (Actually there’s a 3rd scheduler, called Fifo scheduler, but not that widely adopted). “Which scheduler to use?” is one of the most common questions asked by YARN user.

I want to write this blogpost to help you understand the latest feature-wise comparision between two schedulers. Hope this could make you become less doubt about making choices between the two schedulers.

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