If you look at the source code, you would see ReadRequestCostFunction:
private static final String READ_REQUEST_COST_KEY =
"hbase.master.balancer.stochastic.readRequestCost";
private static final float DEFAULT_READ_REQUEST_COST = 5;
and WriteRequestCostFunction :
private static final String WRITE_REQUEST_COST_KEY =
"hbase.master.balancer.stochastic.writeRequestCost";
private static final float DEFAULT_WRITE_REQUEST_COST = 5;
The default weights for these two methods are low (
DEFAULT_REGION_COUNT_SKEW_COST = 500).
Depending on your use case, you can increase one or both the above weights.
Cheers
On Sat, Nov 12, 2016 at 8:47 PM, Li Li <fancye...@gmail.com> wrote:
> I have many tables. some are heavily used and some others are not. But
> the default load balancer is balanced by region numbers. Thus some
> machines are very busy and other machines have no requests. So I want
> to try StochasticLoadBalancer. But I can't find any document tell me
> how to config it in hbase-site.xml.
>
