title: Garbage collector in Flink
body: <p><a href="https://i.stack.imgur.com/fx6pq.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/fx6pq.png" alt="enter image description here"></a>I'm looking the heap memory graph in Flink and I see that the value of heap memory always grow. When the GC active itself? are there a classes of Flink for handle the GC?</p>