pyspark 連接數據庫 前提

前提：配置文件/etc/spark/conf/spark-env.sh添加java export SPARK_CLASSPATH=$SPARK_CLASSPATH:/opt/mysql-connector-java/mysql-connector-java-5.1.40-bin.jar 這樣的配置有時報錯：mysql WARN spark.SparkConf: Setting 'spark.exe

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