Optimization Analysis of Tennis Players’ Physical Fitness Index Based on Data Mining and Mobile Computing

Table 4

Partial Spark configuration parameters.

Parameter name	Defaults	Description
spark.driver.cores	1	Number of cores used for the driver process only in cluster mode
spark.driver.memory	1 g	The amount of memory used for the driver process
spark.executor.memory	1 g	The amount of memory used for the executor process
spark.executor.cores	All	Number of cores per executor
spark.reducer.maxSizeInFlight	48 m	The maximum size of the map output obtained from each reduce task at the same time
spark.shuffle.compress	True	Whether to compress the mapping output file