arunpandianp commented on code in PR #37574:
URL: https://github.com/apache/beam/pull/37574#discussion_r3258953588
##########
runners/core-java/src/main/java/org/apache/beam/runners/core/ReduceFnRunner.java:
##########
@@ -613,6 +642,18 @@ private void processElement(Map<W, W> windowToMergeResult,
WindowedValue<InputT>
StateStyle.RENAMED,
value.causedByDrain());
+ // TODO: Make sure the NewWindowOptimization does not create unbounded
trigger state
+ // in GlobalWindow
+ if (useNewWindowOptimization &&
triggerRunner.isNew(directContext.state())) {
+ // Blindly clear state to ensure Windmill doesn't do unnecessary reads.
Review Comment:
Done.
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