I have cluster with 26 nodes having 16 cores on each. I am running a spark job with 20 cores but i did not understand why my application get 1-2 cores on couple of machines why not it just run on two nodes like node1=16 cores and node 2=4 cores . but cores are allocated like node1=2 node =1---------node 14=1 like that. Is there any conf property i need to change. I know with dynamic allocation we can use below but without dynamic allocation is there any? --conf "spark.dynamicAllocation.maxExecutors=2"
Thanks Amit
