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stack edited comment on HBASE-10761 at 4/12/19 3:33 AM: -------------------------------------------------------- Makes sense [~gsbiju] Thanks. Resolving as implemented. Can open new issue if need more (this one is way old anyways). was (Author: stack): Makes sense [~gsbiju] Thanks. Resolving as implemented. > StochasticLoadBalancer still uses SimpleLoadBalancer's needBalance logic > ------------------------------------------------------------------------ > > Key: HBASE-10761 > URL: https://issues.apache.org/jira/browse/HBASE-10761 > Project: HBase > Issue Type: Bug > Components: Balancer > Affects Versions: 0.98.0 > Reporter: Victor Xu > Priority: Major > Attachments: HBASE_10761.patch, HBASE_10761_v2.patch > > > StochasticLoadBalancer has become the default balancer since 0.98.0. But its > balanceCluster method still uses the BaseLoadBalancer.needBalance() which is > originally designed for SimpleLoadBalancer. It's all based on the number of > regions on the regionservers. > This can cause such a problem: when the cluster has some Hot Spot Region, the > balance process may not be triggered because the numbers of regions on the > RegionServers are averaged. -- This message was sent by Atlassian JIRA (v7.6.3#76005)