raise informative error in scatter
raise informative error in scatter

dask/distributed,amosonn/distributed,broxtronix/distributed,dask/distributed,blaze/distributed,dask/distributed,mrocklin/distributed,blaze/distributed,mrocklin/distributed,broxtronix/distributed,amosonn/distributed,amosonn/distributed,dask/distributed,mrocklin/distributed,broxtronix/distributed