Hi Community, Have some doubts in the fairscheduler, which was introduced as part of the QoS (HADOOP-9640) .
The default queue weights for 4 priority queues are 8,4,2,1. I couldn't find any information about the rational behind choosing these configs. Why 8,4,2,1 , why not 64,32,16,8 or 128,64,32,16. The problem I see with lesser values like (8,4,2,1) , there is queue switching overhead is very frequent. And for a client handler size of 400, shouldn't 64,32,16,8 values be good considering 4 priority levels are being set? Thanks in advance, Ravi
