Hi, Could you elaborate a bit more what do you want to achieve. What have you tried so far? Could you share some code with us? What problems are you facing?
From the vague description you provided you should be able to design it with e.g. KeyedProcessFunction[1] Best, Dawid [1] https://ci.apache.org/projects/flink/flink-docs-release-1.10/dev/stream/operators/process_function.html#the-keyedprocessfunction On 24/03/2020 03:57, yang xu wrote: > Hi, > How to calculate one alarm strategy for each device or one alarm strategy > for each type of IOT device。 > My way is： > 1. Use ListStateto store device state data for calculation > > > > -- > Sent from: > http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/
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