linghong@面壁人Blog

linghong@面壁人Blog

置顶 SparkLogge4j

Scala basic kownlege

Spark-log4j $控制日志输出 $1) 官网说明 123456789地址:http://spark.apache.org/docs/latest/running-on-yarn.htmlTo use a custom log4j configuration for the application master or executors, here are the options:1......

置顶 数据字典之Scala

Scala basic kownlege

数据字典之Scala01 $What is Scala Scalable Language(可扩展的语言)的简写 Scala是运行在JVM上的 兼容Java程序,支持和 java进行混编(集成java类库)。 util类:common-lang3 … 集成面向对象编程和函数式编程的各种特性 拥有high-leve的API: 对比传统的mapreduce程序,只限于 ma......