| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.tinkerpop.gremlin.spark.process.computer; |
| |
| import org.apache.spark.launcher.SparkLauncher; |
| import org.apache.spark.serializer.KryoSerializer; |
| import org.apache.tinkerpop.gremlin.GraphProvider; |
| import org.apache.tinkerpop.gremlin.LoadGraphWith; |
| import org.apache.tinkerpop.gremlin.hadoop.Constants; |
| import org.apache.tinkerpop.gremlin.hadoop.HadoopGraphProvider; |
| import org.apache.tinkerpop.gremlin.hadoop.structure.io.FileSystemStorageCheck; |
| import org.apache.tinkerpop.gremlin.hadoop.structure.io.HadoopPools; |
| import org.apache.tinkerpop.gremlin.process.computer.Computer; |
| import org.apache.tinkerpop.gremlin.process.computer.GraphComputer; |
| import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversalSource; |
| import org.apache.tinkerpop.gremlin.process.traversal.step.map.PageRankTest; |
| import org.apache.tinkerpop.gremlin.process.traversal.step.map.PeerPressureTest; |
| import org.apache.tinkerpop.gremlin.process.traversal.step.map.ProgramTest; |
| import org.apache.tinkerpop.gremlin.spark.structure.Spark; |
| import org.apache.tinkerpop.gremlin.spark.structure.io.PersistedOutputRDD; |
| import org.apache.tinkerpop.gremlin.spark.structure.io.SparkContextStorageCheck; |
| import org.apache.tinkerpop.gremlin.spark.structure.io.ToyGraphInputRDD; |
| import org.apache.tinkerpop.gremlin.spark.structure.io.gryo.GryoRegistrator; |
| import org.apache.tinkerpop.gremlin.structure.Graph; |
| import org.apache.tinkerpop.gremlin.structure.io.gryo.kryoshim.KryoShimServiceLoader; |
| |
| import java.util.Map; |
| |
| /** |
| * @author Marko A. Rodriguez (http://markorodriguez.com) |
| */ |
| @GraphProvider.Descriptor(computer = SparkGraphComputer.class) |
| public class SparkHadoopGraphProvider extends HadoopGraphProvider { |
| |
| protected static final String PREVIOUS_SPARK_PROVIDER = "previous.spark.provider"; |
| private final int AVAILABLE_PROCESSORS = Runtime.getRuntime().availableProcessors(); |
| |
| @Override |
| public Map<String, Object> getBaseConfiguration(final String graphName, final Class<?> test, final String testMethodName, final LoadGraphWith.GraphData loadGraphWith) { |
| if (this.getClass().equals(SparkHadoopGraphProvider.class) && !SparkHadoopGraphProvider.class.getCanonicalName().equals(System.getProperty(PREVIOUS_SPARK_PROVIDER, null))) { |
| Spark.close(); |
| HadoopPools.close(); |
| KryoShimServiceLoader.close(); |
| System.setProperty(PREVIOUS_SPARK_PROVIDER, SparkHadoopGraphProvider.class.getCanonicalName()); |
| } |
| |
| final Map<String, Object> config = super.getBaseConfiguration(graphName, test, testMethodName, loadGraphWith); |
| config.put(Constants.GREMLIN_SPARK_PERSIST_CONTEXT, true); // this makes the test suite go really fast |
| |
| // toy graph inputRDD does not have corresponding outputRDD so where jobs chain, it fails (failing makes sense) |
| if (null != loadGraphWith && |
| !test.equals(ProgramTest.Traversals.class) && |
| !test.equals(PageRankTest.Traversals.class) && |
| !test.equals(PeerPressureTest.Traversals.class) && |
| !test.equals(FileSystemStorageCheck.class) && |
| !testMethodName.equals("shouldSupportJobChaining") && // GraphComputerTest.shouldSupportJobChaining |
| RANDOM.nextBoolean()) { |
| config.put(Constants.GREMLIN_HADOOP_GRAPH_READER, ToyGraphInputRDD.class.getCanonicalName()); |
| } |
| |
| // tests persisted RDDs |
| if (test.equals(SparkContextStorageCheck.class)) { |
| config.put(Constants.GREMLIN_HADOOP_GRAPH_READER, ToyGraphInputRDD.class.getCanonicalName()); |
| config.put(Constants.GREMLIN_HADOOP_GRAPH_WRITER, PersistedOutputRDD.class.getCanonicalName()); |
| } |
| |
| config.put(Constants.GREMLIN_HADOOP_DEFAULT_GRAPH_COMPUTER, SparkGraphComputer.class.getCanonicalName()); |
| config.put(SparkLauncher.SPARK_MASTER, "local[" + AVAILABLE_PROCESSORS + "]"); |
| config.put(Constants.SPARK_SERIALIZER, KryoSerializer.class.getCanonicalName()); |
| config.put(Constants.SPARK_KRYO_REGISTRATOR, GryoRegistrator.class.getCanonicalName()); |
| config.put(Constants.SPARK_KRYO_REGISTRATION_REQUIRED, true); |
| return config; |
| } |
| |
| @Override |
| public GraphTraversalSource traversal(final Graph graph) { |
| return RANDOM.nextBoolean() ? |
| graph.traversal().withComputer(Computer.compute(SparkGraphComputer.class).workers(RANDOM.nextInt(AVAILABLE_PROCESSORS) + 1)) : |
| graph.traversal().withComputer(); |
| } |
| |
| @Override |
| public GraphComputer getGraphComputer(final Graph graph) { |
| return RANDOM.nextBoolean() ? |
| graph.compute().workers(RANDOM.nextInt(AVAILABLE_PROCESSORS) + 1) : |
| graph.compute(SparkGraphComputer.class); |
| } |
| } |