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Samebug tips

  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. ,
    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

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java.lang.ClassNotFoundException: org.apache.wicket.proxy.ILazyInitProxy	at java.net.URLClassLoader.findClass(Unknown Source)	at java.lang.ClassLoader.loadClass(Unknown Source)	at java.lang.ClassLoader.loadClass(Unknown Source)	at java.lang.ClassLoader.defineClass1(Native Method)	at java.lang.ClassLoader.defineClass(Unknown Source)	at sun.reflect.GeneratedMethodAccessor14.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at net.sf.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:395)	at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:237)	at net.sf.cglib.proxy.Enhancer.createHelper(Enhancer.java:378)	at net.sf.cglib.proxy.Enhancer.create(Enhancer.java:286)	at org.apache.wicket.proxy.LazyInitProxyFactory.createProxy(LazyInitProxyFactory.java:191)	at org.apache.wicket.proxy.LazyInitProxyFactory$ProxyReplacement.readResolve(LazyInitProxyFactory.java:270)	at sun.reflect.GeneratedMethodAccessor7815.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at java.io.ObjectStreamClass.invokeReadResolve(Unknown Source)	at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)	at java.io.ObjectInputStream.readObject0(Unknown Source)	at java.io.ObjectInputStream.defaultReadFields(Unknown Source)	at java.io.ObjectInputStream.readSerialData(Unknown Source)	at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)	at java.io.ObjectInputStream.readObject0(Unknown Source)	at java.io.ObjectInputStream.defaultReadFields(Unknown Source)	at java.io.ObjectInputStream.readSerialData(Unknown Source)	at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)	at java.io.ObjectInputStream.readObject0(Unknown Source)	at java.io.ObjectInputStream.defaultReadFields(Unknown Source)	at java.io.ObjectInputStream.readSerialData(Unknown Source)	at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)	at java.io.ObjectInputStream.readObject0(Unknown Source)	at java.io.ObjectInputStream.defaultReadFields(Unknown Source)	at java.io.ObjectInputStream.readSerialData(Unknown Source)	at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)	at java.io.ObjectInputStream.readObject0(Unknown Source)	at java.io.ObjectInputStream.readObject(Unknown Source)	at java.util.ArrayList.readObject(Unknown Source)	at sun.reflect.GeneratedMethodAccessor7812.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at java.io.ObjectStreamClass.invokeReadObject(Unknown Source)	at java.io.ObjectInputStream.readSerialData(Unknown Source)	at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)	at java.io.ObjectInputStream.readObject0(Unknown Source)	at java.io.ObjectInputStream.defaultReadFields(Unknown Source)	at java.io.ObjectInputStream.readSerialData(Unknown Source)	at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)	at java.io.ObjectInputStream.readObject0(Unknown Source)	at java.io.ObjectInputStream.readObject(Unknown Source)	at org.apache.wicket.serialize.java.JavaSerializer.deserialize(JavaSerializer.java:122)	at org.apache.wicket.pageStore.AbstractPageStore.deserializePage(AbstractPageStore.java:152)	at org.apache.wicket.pageStore.AbstractCachingPageStore.getPage(AbstractCachingPageStore.java:67)	at org.apache.wicket.page.PageStoreManager$SessionEntry.getPage(PageStoreManager.java:203)	at org.apache.wicket.page.PageStoreManager$PersistentRequestAdapter.getPage(PageStoreManager.java:357)	at org.apache.wicket.page.AbstractPageManager.getPage(AbstractPageManager.java:82)	at org.apache.wicket.page.PageManagerDecorator.getPage(PageManagerDecorator.java:50)	at org.apache.wicket.page.PageAccessSynchronizer$2.getPage(PageAccessSynchronizer.java:246)	at org.apache.wicket.protocol.ws.api.AbstractWebSocketProcessor.getPage(AbstractWebSocketProcessor.java:315)	at org.apache.wicket.protocol.ws.api.AbstractWebSocketProcessor.broadcastMessage(AbstractWebSocketProcessor.java:243)	at org.apache.wicket.protocol.ws.api.AbstractWebSocketProcessor.onClose(AbstractWebSocketProcessor.java:182)	at org.apache.wicket.protocol.ws.jetty.JettyWebSocketProcessor$JettyWebSocket.onClose(JettyWebSocketProcessor.java:56)	at org.eclipse.jetty.websocket.WebSocketConnectionRFC6455.closeIn(WebSocketConnectionRFC6455.java:332)	at org.eclipse.jetty.websocket.WebSocketConnectionRFC6455.handle(WebSocketConnectionRFC6455.java:257)	at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:696)	at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:53)	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)	at java.lang.Thread.run(Unknown Source)