Oh, sheesh, how silly of me. I copied and pasted that setting name without even noticing the "mapreduce" in it. Yes, I guess that would mean that Spark AMs are probably running even on TASK instances currently, which is OK but not consistent with what we do for MapReduce. I'll make sure we set spark.yarn.am.nodeLabelExpression appropriately in the next EMR release.
~ Jonathan On Tue, Feb 9, 2016 at 1:30 PM Marcelo Vanzin <van...@cloudera.com> wrote: > On Tue, Feb 9, 2016 at 12:16 PM, Jonathan Kelly <jonathaka...@gmail.com> > wrote: > > And we do set yarn.app.mapreduce.am.labels=CORE > > That sounds very mapreduce-specific, so I doubt Spark (or anything > non-MR) would honor it. > > -- > Marcelo >