When you have memory leak in your code, you can typically just drop used resources from console or even make some code to do it periodically. Erlang tracing is

When you have memory leak in your code, you can typically just drop used resources from console or even make some code to do it periodically. Erlang tracing is so good that finding memory leaks is rather easy. There WAS one situation where VM was leaking data (actually this was improper usage ;)) and it was fixed rather fast after people started to complain.