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  1. ,
    via netty.io 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 \
         hello_world_from_pyspark.py {file location}
    
    

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org/apache/spark/Logging
java.lang.ClassNotFoundException: org.junit.runner.notification.RunListener	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)	at java.lang.ClassLoader.defineClass1(Native Method)	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)	at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)	at java.net.URLClassLoader.access$100(URLClassLoader.java:73)	at java.net.URLClassLoader$1.run(URLClassLoader.java:368)	at java.net.URLClassLoader$1.run(URLClassLoader.java:362)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:361)	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)	at java.lang.Class.getDeclaredConstructors0(Native Method)	at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671)	at java.lang.Class.getConstructor0(Class.java:3075)	at java.lang.Class.getConstructor(Class.java:1825)	at org.apache.maven.surefire.util.ReflectionUtils.getConstructor(ReflectionUtils.java:79)	at org.apache.maven.surefire.util.ReflectionUtils.instantiateOneArg(ReflectionUtils.java:130)	at org.apache.maven.surefire.booter.ForkedBooter.createProviderInCurrentClassloader(ForkedBooter.java:321)	at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:290)	at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:242)	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:121)