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View Code? Open in Web Editor NEWCode Samples for my Ververica Webinar "99 Ways to Enrich Streaming Data with Apache Flink"
Home Page: https://www.youtube.com/watch?v=cJS18iKLUIY
Code Samples for my Ververica Webinar "99 Ways to Enrich Streaming Data with Apache Flink"
Home Page: https://www.youtube.com/watch?v=cJS18iKLUIY
First of all thank you for your webinar, it was really useful!
Please correct me if I'm wrong, but I think the purpose of EnrichmentFunctionWithPeriodicPreloading is to do one call to loadReferenceData() every 1 hour per thread, while now it's one query every 1 hour per thread X key, because processingTimeTimers are per key.
So if you have lots of keys, say lots of different devices sending iot data, you will hit the db many times.
Maybe a timer is useless in this case and we could simply keep track of the last timestamp when loadReferenceData was called and if X time has passed call it again to refresh data (before processing the current element).
Am I missing something?
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