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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. ,
    Expert tip

    Check if you've set a name in Application -> Run. If you didn't, the generated XML is gonna have missing information and then this exception will be thrown.

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org.unitime.timetable.gwt.shared.SectioningException: at org.unitime.timetable.solver.jgroups.OnlineStudentSchedulingContainer.createInstance(OnlineStudentSchedulingContainer.java:166) at org.unitime.timetable.solver.jgroups.OnlineStudentSchedulingContainer.createSolver(OnlineStudentSchedulingContainer.java:116) at org.unitime.timetable.solver.jgroups.LocalSolverServer$Updater.checkForNewServers(LocalSolverServer.java:209) at org.unitime.timetable.solver.jgroups.LocalSolverServer$Updater.run(LocalSolverServer.java:159)Caused by: java.lang.ClassNotFoundException: at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:191) at org.unitime.timetable.solver.jgroups.OnlineStudentSchedulingContainer.createInstance(OnlineStudentSchedulingContainer.java:151) ... 3 more