flinkinactionmanningch1.ThisbookisabouthandlingstreamingdatawithApacheFlink.Everybusinessiscomposedofaseriesofevents.Imaginealargeretailstoreorpublicnewssitethatisservingcustomersallovertheworld;eventsareconstantlybeinggenerated.Whatdistinguishesastreamingsystemfromabatchsystem