dasahcc commented on a change in pull request #360: Remove TODO NPE log for
computeResourceBestPossibleState
URL: https://github.com/apache/helix/pull/360#discussion_r307024152
##########
File path:
helix-core/src/main/java/org/apache/helix/controller/stages/BestPossibleStateCalcStage.java
##########
@@ -250,6 +250,12 @@ private boolean
computeResourceBestPossibleState(ClusterEvent event, ResourceCon
// The next release will support rebalancers that compute the mapping
from start to finish
partitionStateAssignment = mappingCalculator
.computeBestPossiblePartitionState(cache, idealState, resource,
currentStateOutput);
+
+ if (partitionStateAssignment == null) {
+ LogUtil.logError(logger, _eventId, "PartitionStateAssignment is
null.");
Review comment:
Let's use warning instead of error, since it is not a critical failure. Also
please add the resource name in the message, otherwise, we may not know which
resource has this problem.
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