About task manager heap size Flink doc says: ... If the cluster is exclusively running Flink, the total amount of available memory per machine minus some memory for the operating system (maybe 1-2 GB) is a good value....
But my nodes have 2GB of ram each. There isn't an empirical count to set ram memory or a way to estimate the ram used by the OS? -- Sent from: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/