Github user kl0u commented on a diff in the pull request:
https://github.com/apache/flink/pull/3541#discussion_r106133528
--- Diff:
flink-streaming-java/src/main/java/org/apache/flink/streaming/api/operators/InternalWatermarkCallbackService.java
---
@@ -153,6 +153,7 @@ public void invokeOnWatermarkCallback(Watermark
watermark) throws IOException {
}
}
}
+ cleanupRegisteredKeys();
--- End diff --
Yes unfortunately it is just for testing. I would like to get rid of it
because it implies an additional iteration. You can comment it and see which
test fails in the `CEPOperatorsTest`.
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