Hi Hequn, Actually there are no error logs and to turn on debug mode I have to restart the app, Actually, I am using around 25-30 operators all others are completing successfully in less time only elastic search sink is taking too much time. I am using around 6 Elastic search sinks all are taking time around 25-30 mins. I have set 50 mins as timeout so 1-2 elastic search sinks take more than that so checkpoint and savepoint fail with the timeout error.
I'll check jstack. Thanks -- Sent from: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/