Setting es_heap_size requires re-install in Windows?

This is what I observed. I set es_heap_size from 2000m to 3000m (on 6gb
machine) and restart ES service and marvel still shows the machine as
having 2gb. I restarted the machine itself and still the same.
I finally got Marvel to show the right data when i uninstalled and
reinstalled the service.
Am I doing something wrong or is this expected?
Where does ES store the value internally?


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