解决方案: mvmysql-connector-java-8.0.20.jar$SPARK_HOME/jars/ 驱动文件mysql-connector-java-8.0.20.jar是从maven仓库下载的: https://mvnrepository.com/artifact/mysql/mysql-connector-java/8.0.20 注意,这个报错的设置,需要搞清楚当前spark是什么mode,如果盲目照搬stackoverflow和百度,你会发现无效! spark-def...
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver image.png 二. 解决方案 根据报错信息我们可以知道,缺少java连接mysql的的jar包。 此时我们需要找到spark的lib目录,然后将jar包拷贝到该目录,这样我们程序就可以读取到该jar包。 我使用的是CDH 6.3.1版本,目录如下:...
执行以下命令 ./bin/pyspark --jars 第一步保存的jar包路径 --driver-class-path 第一步保存的jar包路径 # 例如: ./bin/pyspark --jars /usr/local/spark/jars/mysql-connector-java-5.1.49/mysql-connector-java-5.1.49.jar --driver-class-path /usr/local/spark/jars/mysql-connector-java-5.1.49/m...
WARN Shell: Did not find winutils.exe: java.io.FileNotFoundException: java.io.FileNotFoundException: HADOOP_HOME and hadoop.home.dir are unset. 在PyCharm 中 , 调用 PySpark 执行 计算任务 , 会报如下错误 : D:\001_Develop\022_Python\Python39\python.exe D:/002_Project/011_Python/HelloPython...
I have been using SparkSession from pyspark.sql to load a table from sql to pyspark dataframe. I am using pycharm as IDE. getting below error. Strangely, the code worked for me in the beginning, but then somehow(without me making any changes to the python or java o...
23/07/30 21:24:54 WARN Shell: Did not find winutils.exe: java.io.FileNotFoundException: java.io.FileNotFoundException: HADOOP_HOME and hadoop.home.dir are unset. -see https://wiki.apache.org/hadoop/WindowsProblems Setting default log level to "WARN". ...
在正确编译好java程序之后，打包，然后在命令行输入java -jar ，却弹出找不到或无法加载主类。 一...
WARN Shell: Did not find winutils.exe: java.io.FileNotFoundException: java.io.FileNotFoundException: HADOOP_HOME and hadoop.home.dir are unset. PySpark 一般会与 Hadoop 环境一起运行 , 如果在Windows中没有安装 Hadoop 运行环境 , 就会报上述错误 ; ...
pycharm中运行代码的时候记得添加 #环境变量否则还是会报错:错误如下 Exception in thread "main" java.util.NoSuchElementException: key not found: _PYSPARK_DRIVER_CONN_INFO_PATH #添加俩个环境变量就ok os.environ['SPARK_HOME']="G:\spark\spark_2.3.1_bin_hadoop2.7" ...
I am getting theModuleNotFoundError: No module named 'sklearn'whenever I try to.show()the dataframe, or in another instance when I try to write the dataframe into the database. See script below: importpicklefrompyspark.sql.functionsimportudffrompyspark.sql.typesimportDoubleTypefrom...