Recently I want to optimize the way to find the positions where the backpressures occured .
I read some blogs about flink-backpressure and have a rough idea of it . The method which Flink adopted is thread-stack-sample , it's heavy and no-lasting . The positions where backpressures occured are very important to the developers . They should be treated as monitor-metrics . Any other choice that we can take to detection the flink backpressures ?
