Hi, I am not sure since people normally don't run Flink on such large machines. They rather run it on many smaller machines.
I will definitely be interesting too see your new results where the Job can actually use all the memory available on the machine. -- aljoscha On Mon, 4 Apr 2016 at 15:54 Shinhyung Yang <shinhyung.y...@gmail.com> wrote: > Dear Aljoscha and Ufuk, > > Thank you for clarifying! Yes I'm running this wordcount application > on a 64-core machine with 120GB ram allocated for users. > > > In that case, the amount of RAM you give to the TaskManager seems to low. > > Could you try re-running your experiments with: > > jobmanager.heap.mb: 5000 > > taskmanager.heap.mb: 100000 > > > > So, about 100 GB of RAM for the TaskManager. > > Definitely I will try this! The result will be really interesting for > sure. In this case, am I still good to go with 64 task slots with a > single task manager? > > Thank you. > With best regards, > Shinhyung Yang. >