question Fair scheduler job submission concept in Archives of Support Questions (Read Only)

Fair scheduler job submission concept

Dev4Hadoop — Fri, 11 Sep 2015 14:41:20 GMT

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

Re: Fair scheduler job submission concept

Harsh J — Sun, 27 Sep 2015 14:51:10 GMT

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).

Re: Fair scheduler job submission concept

Dev4Hadoop — Sun, 27 Sep 2015 23:52:04 GMT

Thanks!