Hi Kostas, I use PROCESS_CONTINUOUSLY mode, and checkpoint interval of 20 minutes. When I said "Within that 15 minutes, checkpointing process is not triggered though" in my previous email, I was not complaining that checkpoint is not running, but to say that the slowness is not due to ongoing checkpoint.
Thanks and regards, Averell -- Sent from: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/