Thanks Fabian, I'll take a look to these improvements. I was wondering if the increasing state size could be due to that the UUID used in the keyBy are randomly generated. Maybe even if I correctly delete all the state related to a given key there is still some metadata related to the key wandering around.
Gerard -- Sent from: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/
