I have a CDH cluster with below configuration. Spark gateway is installed on all machines. Each node has 22 cores
2 name nodes
3 Kafka nodes
4 data nodes
1 node to run mysql content store
I am trying to find out how many worker/slave nodes are assigned to run spark applications in the cluster. When I see the hadoop UI it shows total vcores assinged as 88. Does that mean only 4 data nodes are configured as worker nodes ? Where and how can I see what all worker/slave nodes are configured.