Hi Dawid, What you wrote is exactly correct, it wouldn't generate a new waatermark (and subsequently throw events) unless maxOutOfOrderness time is elapsed. Thus, I was expecting for alerts to be raised as the stream was out of order but not out of maxOutOfOrderness.
Nevertheless I tried your example and the result is the same, I get nothing as output except the events themselves which I see with events.print() PS: BTW, shouldn't your example generate nothing because its beyond the maxOutOfOrderness and Flink would simply discard these messages. Regards, Biplob -- View this message in context: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Queries-regarding-FlinkCEP-tp13454p13523.html Sent from the Apache Flink User Mailing List archive. mailing list archive at Nabble.com.