Fair scheduler job submission concept

[#1]

Since reading several articles on fair scheduler, I am still at loss, if there are not preemptive stuff configured, and user A is looking for all the available resources and still needs more , and than user B, submits a job, would fair scheduler allow B to start obtaining containers as soon some containers are freed by A, Or B would wait for all the running and requested containers for B are done? Much appreciate the input, I wish I could mimic this but not able to so appreciate some insight.

Thanks and Regards,

Dev

[#2 · Accepted solution]

Given a fully used situation with preemption disabled, B will begin running as soon as A's containers complete (as opposed to waiting the A application to end entirely before it runs).

[#3]

Thanks!