qq_37607026的博客

saveAsTextFile 保存得地址是到文件夹得 根本不是导出得一个文件 mapRDD.coalesce(1,true).saveAsTextFile(filePath);

spark-submit \ --master yarn \ --deploy-mode client \ --executor-memory 20g \ --executor-cores 4 \ --num-executors 3 \ --class com.cpic.sparkdemo.downTest.downTxtSelect /cpic/cpicapp/lm_test/jav 报错log Exception in thread "main" org.apache.spark.SparkE.