narendly commented on a change in pull request #639: Refine the WAGED
rebalancer to minimize the partial rebalance workload.
URL: https://github.com/apache/helix/pull/639#discussion_r352427228
##########
File path:
helix-core/src/main/java/org/apache/helix/controller/rebalancer/waged/model/ClusterModelProvider.java
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@@ -197,6 +371,33 @@ public static ClusterModel
generateClusterModelFromCurrentState(
return toBeAssignedReplicas;
}
+ // <partition, <state, instances set>>
+ private static Map<String, Map<String, Set<String>>>
getValidStateInstanceMap(
+ ResourceAssignment assignment, Set<String> activeInstances) {
+ Map<String, Map<String, Set<String>>> stateInstanceMap =
getStateInstanceMap(assignment);
+ // Filter to remove all invalid allocations that are not on the active
instances.
Review comment:
Move this up so that it's in the official javadoc for the method?
/*
* "comment here".
*/?
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