Yes. While back-pressure would eventually ensure high throughput, hand tuning parallelism became necessary because the job with high source parallelism would immediately bring down our internal services - not giving enough time to flink to adjust the in-rate. Plus running all operators at such a high scale would result in wastage of resources, even with operator chaining in place.
That's why I think more toggles are needed to make current auto-scaling truly shine. -- Sent from: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/
