jiajunwang commented on a change in pull request #651: Improve the algorithm so
it prioritizes the assignment to the idle nodes when the constraint evaluation
results are the same
URL: https://github.com/apache/helix/pull/651#discussion_r356861625
##########
File path:
helix-core/src/main/java/org/apache/helix/controller/rebalancer/waged/model/ClusterContext.java
##########
@@ -104,6 +106,15 @@
_estimatedMaxTopStateCount =
estimateAvgReplicaCount(totalTopStateReplicas, instanceCount);
_baselineAssignment = baselineAssignment;
_bestPossibleAssignment = bestPossibleAssignment;
+
+ _busyInstances = _bestPossibleAssignment.values().stream().flatMap(
Review comment:
If I get your question correctly, you are right. To be simple, the current
state (which is intermediate) is never read in the whole rebalance calculation.
It is mainly compared and processed by the other rebalance pipeline stages.
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