@Test
    public void shouldNotPersistRDDAcrossJobs() throws Exception {
        Spark.create("local[4]");
        final String rddName = TestHelper.makeTestDataDirectory(PersistedInputOutputRDDIntegrateTest.class, UUID.randomUUID().toString());
        final Configuration configuration = super.getBaseConfiguration();
        configuration.setProperty(Constants.GREMLIN_HADOOP_INPUT_LOCATION, TestFiles.PATHS.get("tinkerpop-modern-v3.kryo"));
        configuration.setProperty(Constants.GREMLIN_HADOOP_GRAPH_READER, GryoInputFormat.class.getCanonicalName());
        configuration.setProperty(Constants.GREMLIN_HADOOP_GRAPH_WRITER, PersistedOutputRDD.class.getCanonicalName());
        configuration.setProperty(Constants.GREMLIN_HADOOP_OUTPUT_LOCATION, rddName);
        configuration.setProperty(Constants.GREMLIN_SPARK_PERSIST_CONTEXT, false);  // because the spark context is NOT persisted, neither is the RDD
        Graph graph = GraphFactory.open(configuration);
        graph.compute(SparkGraphComputer.class)
                .result(GraphComputer.ResultGraph.NEW)
                .persist(GraphComputer.Persist.EDGES)
                .program(TraversalVertexProgram.build()
                        .traversal(graph.traversal().withComputer(SparkGraphComputer.class),
                                "gremlin-groovy",
                                "g.V()").create(graph)).submit().get();
        ////////
        Spark.create("local[4]");
        assertFalse(Spark.hasRDD(Constants.getGraphLocation(rddName)));
        assertEquals(0, Spark.getContext().getPersistentRDDs().size());
        Spark.close();
    }
@author Marko A. Rodriguez (http://markorodriguez.com)
spark-gremlin/src/test/java/org/apache/tinkerpop/gremlin/spark/structure/io/PersistedInputOutputRDDIntegrateTest.java