Hi All, I wanted to know if there are hbase users using stochastic load balancer with non-default cost function multipliers. I am trying to achieve load balancing based on locality and region load. Our common use case is when region servers die and we restart, some of the regions loose locality. I want to tune the stochastic load balancer in such a way that if I assign a non zero cost multiplier to locality cost and region load, my regions should be balanced in a manner in which they have high locality and balance, depending on the cost multiplier. I did not see any unit tests which use cost multipliers to test stochastic load balancer.
It would be greatly helpful to me if anyone could share their experiences with the cost functions. Thanks Vandana
