On 7 Oct 2015, at 11:06, ayan guha <guha.ayan@gmail.com> wrote:

Can queues also be used to separate workloads?


yes; that's standard practise. Different YARN queues can have different maximum memory & CPU, and you can even tag queues as "pre-emptible", so more important work can kill containers if there isn't space on the cluster

https://hadoop.apache.org/docs/current/hadoop-yarn/hadoop-yarn-site/CapacityScheduler.html#Queue_Properties