Hello, Is FlinkCEP applicable to large key spaces with potentially long timeouts between events that define a pattern? Ideally, without ridiculous hardware.
More concretely, we segment users (one key per user) based on sequences of events for that user. A segment "Abandoned Cart" may be defined by adding items during a browsing session but no purchase event within the following 5 days. The number of users is between 1 and 10 million. Is this type of segmentation scenario a viable use case for FlinkCEP? We currently segment by building incremental profiles in ES which are then "matched against segment definition queries" using ES percolators. In short, we incur costs when interacting with ES. Regards, David PS: Thanks for FlinkForward 2016, very interesting presentations and equally important excellent catering ;-)
