Spark启动过程中遇到的错误 ./spark shell –master spark://node001:7077

20/02/20 19:52:17 ERROR spark.SparkContext: Error initializing SparkContext. java.lang.IllegalArgumentException: System memory 259522560 must be at least 471859200. Please increase heap size using the --driver-memory option or spark.driver.memory in Spark configuration.at.org.apache.spark.memory.Uni