narendly commented on a change in pull request #520: Refactoring soft
constraints to simply the algorithm and fix potential issues.
URL: https://github.com/apache/helix/pull/520#discussion_r337824637
##########
File path:
helix-core/src/main/java/org/apache/helix/controller/rebalancer/waged/constraints/ResourceTopStateAntiAffinityConstraint.java
##########
@@ -28,26 +28,17 @@
* The higher number the number of top state partitions assigned to the
instance, the lower the
* score, vice versa.
*/
-class ResourceTopStateAntiAffinityConstraint extends SoftConstraint {
- private static final float MAX_SCORE = 1f;
- private static final float MIN_SCORE = 0f;
-
- ResourceTopStateAntiAffinityConstraint() {
- super(MAX_SCORE, MIN_SCORE);
- }
-
+class ResourceTopStateAntiAffinityConstraint extends UsageSoftConstraint {
@Override
protected float getAssignmentScore(AssignableNode node, AssignableReplica
replica,
ClusterContext clusterContext) {
if (!replica.isReplicaTopState()) {
- return (getMaxScore() + getMinScore()) / 2.0f;
+ return 0;
Review comment:
No smoothing?
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