I don't know about any specific guidelines for this options, but what I know is that it only affects the sort operator, and it's related to direct memory not heap memory.
On Wed, Jun 1, 2016 at 1:20 PM, John Omernik <j...@omernik.com> wrote: > I am reposting this question here as well. (I posted on the MapR Community > forums). > > The default as I understand it, for the setting > planner.memory.max_query_memory_per_node > is 2G. The default heap memory settings in drill-env.sh is 4G and the > default Direct memory is 8G. > > I guess, is there any advice on where I should set my > planner.memory.max_query_memory_per_node > as the other numbers scale? I.e. does this setting coordinate more with > heap or direct or both? If I double my direct mem, should I double the > setting? Are there any guidelines or methods for tuning this? > > I am currently running bits at 24 GB of Heap and 84GB of Direct, should I > take the planner.memory.max_query_memory_per_node and x 8? to put 16G? > Thoughts? > > Thanks! > > John > -- Abdelhakim Deneche Software Engineer <http://www.mapr.com/> Now Available - Free Hadoop On-Demand Training <http://www.mapr.com/training?utm_source=Email&utm_medium=Signature&utm_campaign=Free%20available>
