spark-hive-udf:Spark Hive UDF示例

Spark Hive UDF示例 建立项目 mvn clean package 将spark-hive-udf-1.0.0-SNAPSHOT.jar复制到边缘节点临时目录 spark-hive-udf]# cp target/spark-hive-udf-1.0.0-SNAPSHOT.jar /tmp 通过提供罐子来启动火花壳 spark-shell --master yarn --jars /tmp/spark-hive-udf-1.0.0-SNAPSHOT.jar 创建名称为大写的函数并列出该函数 spark.sql("CREATE OR REPLACE FUNCTION uppercase AS 'com.ranga.spark.hive.udf.UpperCaseUDF' USING JAR '/tmp/spark-hive-udf-1.0.0-SNAPSHOT.jar'") sp