应用错误收集

我正在尝试使用spark从我的oracle数据库导入一个表，在这里我使用Scala导入表。我的jdbc驱动程序是ojdbc7.jar，它在配置文件中的参数spark.driver.extraClassPath和spark.executor.extraClassPath中都添加了

spark.driver.extraClassPath :/usr/lib/hadoop-lzo/lib/*:/usr/lib/hadoop/hadoop-aws.jar:/usr/share/aws/aws-java-sdk/*:/usr/share/aws/emr/emrfs/conf:/usr/s hare/aws/emr/emrfs/lib/*:/usr/share/aws/emr/emrfs/auxlib/*:/usr/share/aws/emr/security/conf:/usr/share/aws/emr/security/lib/*:/home/hadoop/ojdbc7.jar spark.driver.extraLibraryPath /usr/lib/hadoop/lib/native:/usr/lib/hadoop-lzo/lib/native spark.executor.extraClassPath :/usr/lib/hadoop-lzo/lib/*:/usr/lib/hadoop/hadoop-aws.jar:/usr/share/aws/aws-java-sdk/*:/usr/share/aws/emr/emrfs/conf:/usr/s hare/aws/emr/emrfs/lib/*:/usr/share/aws/emr/emrfs/auxlib/*:/usr/share/aws/emr/security/conf:/usr/share/aws/emr/security/lib/*:/home/hadoop/ojdbc7.jar spark.executor.extraLibraryPath /usr/lib/hadoop/lib/native:/usr/lib/hadoop-lzo/lib/native

我可以成功导入表格。我可以打印表的架构。但是在执行任何操作（如Count，show（）时，它会抛出错误

引起：java.lang.ClassNotFoundException：oracle.jdbc.OracleDriver 在java.lang.ClassLoader.findClass（ClassLoader.java:530）at org.apache.spark.util.ParentClassLoader.findClass（ParentClassLoader.scala：26）在java.lang.ClassLoader.loadClass（ClassLoader.java:424）at org.apache.spark.util.ParentClassLoader.loadClass（ParentClassLoader.scala：34）在java.lang.ClassLoader.loadClass（ClassLoader.java:357）at org.apache.spark.util.ParentClassLoader.loadClass（ParentClassLoader.scala：30）在 org.apache.spark.repl.ExecutorClassLoader.findClass（ExecutorClassLoader.scala：77） ......还有21个

Spark执行器抛出错误“java.lang.ClassNotFoundException：oracle.jdbc.OracleDriver”

2 个答案: