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  1. ,
    via by Unknown author

    Needs to add netty-transport-native-epoll with a OS classifier to the classpath, it's not included in netty-all

  2. ,
    Expert tip

    This might be an issue with the file location in the Spark submit command. Try it with

    spark-submit --master spark://master:7077 \ {file location}

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java.lang.ClassNotFoundException: org.apache.log4j.Layout	at	at java.lang.ClassLoader.loadClass(	at sun.misc.Launcher$AppClassLoader.loadClass(	at java.lang.ClassLoader.loadClass(	at java.lang.Class.forName0(Native Method)	at java.lang.Class.forName(	at com.sun.javafx.application.LauncherImpl.lambda$launchApplicationWithArgs$100(	at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$119(	at com.sun.javafx.application.PlatformImpl.lambda$null$117(	at Method)	at com.sun.javafx.application.PlatformImpl.lambda$runLater$118(	at$	at Method)	at$null$450(	at