public Resource getResourcePerExecutor() {
      return resourcePerExecutor;
    }
Create a NodeInfo bound to a service instance
 @param serviceInstance         the associated serviceInstance
@param blacklistConf           blacklist configuration
@param clock                   clock to use to obtain timing information
@param numSchedulableTasksConf number of schedulable tasks on the node. 0 represents auto
                               detect based on the serviceInstance, -1 indicates indicates
@param metrics
llap-tez/src/java/org/apache/hadoop/hive/llap/tezplugins/LlapTaskSchedulerService.java