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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

Solutions on the web

via Google Groups by Vaulstein, 1 year ago
org/apache/predictionio/controller/EngineFactory
via Stack Overflow by Chris Clark
, 1 year ago
org/springframework/context/ApplicationListener
via GitHub by yadid
, 1 year ago
org/apache/spark/Logging
via Stack Overflow by Feng Ye
, 2 years ago
org/apache/tomcat/JarScanner
java.lang.ClassNotFoundException: org.apache.predictionio.controller.EngineFactory	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)	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$1.run(URLClassLoader.java:362)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:361)	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)	at java.lang.Class.forName0(Native Method)	at java.lang.Class.forName(Class.java:348)	at scala.reflect.runtime.ReflectionUtils$.staticSingletonInstance(ReflectionUtils.scala:60)	at scala.reflect.runtime.JavaMirrors$JavaMirror$JavaModuleMirror.instance(JavaMirrors.scala:473)	at io.prediction.workflow.WorkflowUtils$.getEngine(WorkflowUtils.scala:69)	at io.prediction.workflow.CreateWorkflow$.liftedTree1$1(CreateWorkflow.scala:193)	at io.prediction.workflow.CreateWorkflow$.main(CreateWorkflow.scala:192)	at io.prediction.workflow.CreateWorkflow.main(CreateWorkflow.scala)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:498)	at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:672)	at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:180)	at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:205)	at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:120)	at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)