06-10-2017 07:09 AM
06-16-2017 01:47 AM - edited 06-16-2017 01:48 AM
Try setting that value to 10 for example and retry.
Do not modify the hardware specs. Just modify in Yarn the number of vCPU allocated.
You can to some extend "overcommit" the vCPU allocated to Yarn. For some testing cluster you should be fine.
Also, be sure you have allocated enough ram to Yarn.