Hi Biplop, CEP library internally must ensure order of the incoming events. It sorts events upon Watermark arrival. At that time it sorts events with timestamp < Watermark.
With BoundedOutOfOrdernessTimestampExtractor a Watermark with time* t* is generated if there arrives event with timestamp *t + maxOutOfOrderness*. Try adding event like: 12,b,70000,6 to your test set and some alerts should be generated. Z pozdrowieniami! / Cheers! Dawid Wysakowicz *Data/Software Engineer* Skype: dawid_wys | Twitter: @OneMoreCoder <http://getindata.com/> 2017-06-06 15:17 GMT+02:00 Biplob Biswas <revolutioni...@gmail.com>: > Sorry to bombard with so many messages , but one last thing is the example > would produce alert if the line specifying Event Time is commented out. > > More specifically, this one: > > env.setStreamTimeCharacteristic(TimeCharacteristic.EventTime); > > > Only with event time, there is no alert. > > Thanks, Biplob > > > > -- > View this message in context: http://apache-flink-user- > mailing-list-archive.2336050.n4.nabble.com/Queries-regarding-FlinkCEP- > tp13454p13513.html > Sent from the Apache Flink User Mailing List archive. mailing list archive > at Nabble.com. >
