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  1. ,
    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}
    
    
  2. ,

    You are not deploying the oracle driver with the application. Place the driver jars in a shared or library extension folder of your application server. (You should go with option one or two though

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java.lang.ClassNotFoundException: com.oracle.coherence.environment.extensible.namespaces.IntroduceNamespaceContentHandler	at java.net.URLClassLoader$1.run(URLClassLoader.java:202)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)	at java.lang.Class.forName0(Native Method)	at java.lang.Class.forName(Class.java:169)	at com.tangosol.util.ExternalizableHelper.loadClass(ExternalizableHelper.java:3056)	at com.oracle.coherence.environment.extensible.DefaultConfigurationContext$Scope.establishNamespaceContentHandlerFor(DefaultConfigurationContext.java:1109)	at com.oracle.coherence.environment.extensible.DefaultConfigurationContext$Scope.establishNamespaceContentHandlerFor(DefaultConfigurationContext.java:1145)	at com.oracle.coherence.environment.extensible.DefaultConfigurationContext.ensureNamespaceContentHandler(DefaultConfigurationContext.java:119)	at com.oracle.coherence.environment.extensible.DefaultConfigurationContext.processElement(DefaultConfigurationContext.java:282)	at com.oracle.coherence.environment.extensible.DefaultConfigurationContext.processDocument(DefaultConfigurationContext.java:230)	at com.oracle.coherence.environment.extensible.ExtensibleEnvironment.setConfig(ExtensibleEnvironment.java:469)	at com.tangosol.net.DefaultConfigurableCacheFactory.(DefaultConfigurableCacheFactory.java:190)	at com.tangosol.net.DefaultConfigurableCacheFactory.(DefaultConfigurableCacheFactory.java:176)	at com.tangosol.net.DefaultConfigurableCacheFactory.(DefaultConfigurableCacheFactory.java:152)	at com.oracle.coherence.environment.extensible.ExtensibleEnvironment.(ExtensibleEnvironment.java:155)	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)	at com.tangosol.util.ClassHelper.newInstance(ClassHelper.java:694)	at com.tangosol.run.xml.XmlHelper.createInstance(XmlHelper.java:2567)	at com.tangosol.util.Base.ensureRuntimeException(Base.java:288)	at com.tangosol.run.xml.XmlHelper.createInstance(XmlHelper.java:2608)	at com.tangosol.run.xml.XmlHelper.createInstance(XmlHelper.java:2492)	at com.tangosol.net.ScopedCacheFactoryBuilder.getDefaultFactory(ScopedCacheFactoryBuilder.java:270)