Hi John, At Cloudera we turn it off by default and recommend doing so because of the way that Java can behave weirdly with high vmems.
-Sandy On Sun, Oct 20, 2013 at 7:34 AM, John Lilley <[email protected]>wrote: > Is this option typically enabled in practice? Is there a way for a > specific AM to disable it, or is it site-wide?**** > > We are finding that our YARN application, because it launches many > threads, each with a somewhat large stack, has a large vmem/pmem ratio > (say, 2GB / 200MB). Unless we disable this option, the NM tends to kill > our tasks.**** > > Thanks**** > > John**** > > ** ** >
