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In recent times, YARN Capacity Scheduler has improved a lot in terms of some critical features and refactoring. Here is a quick look into some of the recent changes in scheduler:
Global Scheduling Support
General placement support
Better preemption model to handle resource anomalies across and within queue.
Absolute resources’ configuration support
Priority support between Queues and Applications
In this talk, we will deep dive into each of these new features to give a better picture of their usage and performance comparison. We will also provide some more brief overview about the ongoing efforts and how they can help to solve some of the core issues we face today.
Sunil Govind (Hortonworks), Jian He (Hortonworks)