Hi shyla, It should be doable with CEP. You can create pattern like: Pattern.begin("start").next/followedBy("end").where(...).within(/* two weeks*/) and subscribe for timed out events. You can check very similar example here.
Best, Dawid  https://github.com/dataArtisans/flink-training-exercises/blob/master/src/main/java/com/dataartisans/flinktraining/exercises/datastream_java/cep/LongRidesExercise.java On 12/07/18 14:26, Hequn Cheng wrote: > Hi shyla, > > Considering window, I think it is not very convenient. Two weeks > window is used to process data in the recent 2 weeks while you want to > process data beyond 2 weeks. > I'm not familiar with CEP, but it sounds like a good idea. > > Best, Hequn > > > On Thu, Jul 12, 2018 at 10:56 AM, shyla deshpande > <deshpandesh...@gmail.com <mailto:deshpandesh...@gmail.com>> wrote: > > Hi Hequen, > > I was more interested in solving using CEP. > I want to have a window of 2 weeks and in the Timeout Handler I > want to create Notification/Reminder. > Is this doable in Flink 1.4.2.? > > Thanks > > > On Wed, Jul 11, 2018 at 6:14 PM, Hequn Cheng <chenghe...@gmail.com > <mailto:chenghe...@gmail.com>> wrote: > > Hi shyla, > > There is a same question asked two days ago. Maybe it is > helpful for you. Let me know if you have any other concern. > Best, Hequn > >  > http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/How-to-trigger-a-function-on-the-state-periodically-td21311.html > > <http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/How-to-trigger-a-function-on-the-state-periodically-td21311.html> > > > On Thu, Jul 12, 2018 at 4:50 AM, shyla deshpande > <deshpandesh...@gmail.com <mailto:deshpandesh...@gmail.com>> > wrote: > > I need to create User Notification/Reminder when I don’t > see a specific event (high volume) from that user for more > than 2 weeks. > > Should I be using windowing or CEP or ProcessFunction? > > I am pretty new to Flink. Can anyone please advise me what > is the best way to solve this? > > Thank you for your time. > > > >
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