returns the default number of threads for both the netty client and server thread pools . if numusablecores is 0 , we will use runtime get an approximate number of available cores . concode_field_sep SparkTransportConf$ MODULE$ concode_field_sep int MAX_DEFAULT_NETTY_THREADS concode_elem_sep org.apache.spark.network.util.TransportConf fromSparkConf
int function ( int arg0 ) { throw new RuntimeException ( ) ; }