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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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org.apache.coyote.tomcat4.CoyoteConnector
java.lang.ClassNotFoundException: org.apache.coyote.tomcat4.CoyoteConnector	at java.net.URLClassLoader$1.run(URLClassLoader.java:198)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:186)	at java.lang.ClassLoader.loadClass(ClassLoader.java:299)	at java.lang.ClassLoader.loadClass(ClassLoader.java:255)	at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:315)	at java.lang.Class.forName0(Native Method)	at java.lang.Class.forName(Class.java:140)	at org.apache.catalina.util.xml.ObjectCreate.start(XmlMapper.java:616)	at org.apache.catalina.util.xml.XmlMapper.matchStart(XmlMapper.java:412)	at org.apache.catalina.util.xml.XmlMapper.startElement(XmlMapper.java:91)	at org.xml.sax.helpers.XMLReaderAdapter.startElement(XMLReaderAdapter.java:333)	at org.apache.crimson.parser.Parser2.maybeElement(Parser2.java:1490)	at org.apache.crimson.parser.Parser2.content(Parser2.java:1779)	at org.apache.crimson.parser.Parser2.maybeElement(Parser2.java:1507)	at org.apache.crimson.parser.Parser2.content(Parser2.java:1779)	at org.apache.crimson.parser.Parser2.maybeElement(Parser2.java:1507)	at org.apache.crimson.parser.Parser2.parseInternal(Parser2.java:500)	at org.apache.crimson.parser.Parser2.parse(Parser2.java:305)	at org.apache.crimson.parser.XMLReaderImpl.parse(XMLReaderImpl.java:442)	at org.xml.sax.helpers.XMLReaderAdapter.parse(XMLReaderAdapter.java:223)	at javax.xml.parsers.SAXParser.parse(SAXParser.java:314)	at javax.xml.parsers.SAXParser.parse(SAXParser.java:253)	at org.apache.catalina.util.xml.XmlMapper.readXml(XmlMapper.java:228)	at org.apache.catalina.startup.Catalina.start(Catalina.java:687)	at org.apache.catalina.startup.Catalina.execute(Catalina.java:657)	at org.apache.catalina.startup.Catalina.process(Catalina.java:178)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:324)	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:203)