Github user aljoscha commented on a diff in the pull request: https://github.com/apache/flink/pull/2093#discussion_r66794085 --- Diff: flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/operators/windowing/WindowOperator.java --- @@ -551,19 +657,28 @@ public void registerProcessingTimeTimer(long time) { } } + void registerCleanupTimer(long time) { --- End diff -- The logic for these two (`register/deleteCleanupTimer`) should be moved directly into `WindowOperator`.
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