HBASE-25838 Use double instead of Double in StochasticLoadBalancer (#3221)
Signed-off-by: Yulin Niu <niuyulin@apache.org>
diff --git 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
index a3e9c58..0ffdc43 100644
--- 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
@@ -139,9 +139,9 @@
private List<CostFunction> costFunctions; // FindBugs: Wants this protected; IS2_INCONSISTENT_SYNC
// to save and report costs to JMX
- private Double curOverallCost = 0d;
- private Double[] tempFunctionCosts;
- private Double[] curFunctionCosts;
+ private double curOverallCost = 0d;
+ private double[] tempFunctionCosts;
+ private double[] curFunctionCosts;
// Keep locality based picker and cost function to alert them
// when new services are offered
@@ -218,8 +218,8 @@
addCostFunction(regionLoadFunctions[4]);
loadCustomCostFunctions(conf);
- curFunctionCosts= new Double[costFunctions.size()];
- tempFunctionCosts= new Double[costFunctions.size()];
+ curFunctionCosts= new double[costFunctions.size()];
+ tempFunctionCosts= new double[costFunctions.size()];
isBalancerDecisionRecording = getConf()
.getBoolean(BaseLoadBalancer.BALANCER_DECISION_BUFFER_ENABLED,
@@ -556,7 +556,7 @@
/**
* update costs to JMX
*/
- private void updateStochasticCosts(TableName tableName, Double overall, Double[] subCosts) {
+ private void updateStochasticCosts(TableName tableName, double overall, double[] subCosts) {
if (tableName == null) {
return;
}
@@ -572,7 +572,7 @@
for (int i = 0; i < costFunctions.size(); i++) {
CostFunction costFunction = costFunctions.get(i);
String costFunctionName = costFunction.getClass().getSimpleName();
- Double costPercent = (overall == 0) ? 0 : (subCosts[i] / overall);
+ double costPercent = (overall == 0) ? 0 : (subCosts[i] / overall);
// TODO: cost function may need a specific description
balancer.updateStochasticCost(tableName.getNameAsString(), costFunctionName,
"The percent of " + costFunctionName, costPercent);
@@ -731,7 +731,7 @@
}
Float multiplier = c.getMultiplier();
- Double cost = c.cost();
+ double cost = c.cost();
this.tempFunctionCosts[i] = multiplier*cost;
total += this.tempFunctionCosts[i];