HBASE-23153 PrimaryRegionCountSkewCostFunction SLB function should implement CostFunction#isNeeded (#714)

Signed-off-by: Reid Chan <reidchan@apache.org>
2019-10-12 13:14:13 -07:00 · 2019-10-12 13:14:13 -07:00 · 56e0652aff
commit 56e0652aff
parent 7171da09ea
1 changed files with 5 additions and 0 deletions
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.java
@ -1235,6 +1235,11 @@ public class StochasticLoadBalancer extends BaseLoadBalancer {
        DEFAULT_PRIMARY_REGION_COUNT_SKEW_COST));
    }

+    @Override
+    boolean isNeeded() {
+      return cluster.hasRegionReplicas;
+    }
+
    @Override
    protected double cost() {
      if (!cluster.hasRegionReplicas) {