| /* |
| * 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.giraph; |
| |
| import java.io.IOException; |
| |
| import org.apache.giraph.examples.SimpleCheckpointVertex; |
| import org.apache.giraph.examples.SimpleSuperstepVertex.SimpleSuperstepVertexOutputFormat; |
| import org.apache.giraph.examples.SimpleSuperstepVertex.SimpleSuperstepVertexInputFormat; |
| import org.apache.giraph.graph.GiraphJob; |
| import org.apache.hadoop.fs.Path; |
| import junit.framework.Test; |
| import junit.framework.TestSuite; |
| |
| /** |
| * Unit test for not enough map tasks |
| */ |
| public class TestNotEnoughMapTasks extends BspCase { |
| /** |
| * Create the test case |
| * |
| * @param testName name of the test case |
| */ |
| public TestNotEnoughMapTasks(String testName) { |
| super(testName); |
| } |
| |
| /** |
| * @return the suite of tests being tested |
| */ |
| public static Test suite() { |
| return new TestSuite(TestNotEnoughMapTasks.class); |
| } |
| |
| /** |
| * This job should always fail gracefully with not enough map tasks. |
| * |
| * @throws IOException |
| * @throws ClassNotFoundException |
| * @throws InterruptedException |
| */ |
| public void testNotEnoughMapTasks() |
| throws IOException, InterruptedException, ClassNotFoundException { |
| if (getJobTracker() == null) { |
| System.out.println( |
| "testNotEnoughMapTasks: Ignore this test in local mode."); |
| return; |
| } |
| GiraphJob job = new GiraphJob(getCallingMethodName()); |
| setupConfiguration(job); |
| // An unlikely impossible number of workers to achieve |
| final int unlikelyWorkers = Short.MAX_VALUE; |
| job.setWorkerConfiguration( |
| unlikelyWorkers, unlikelyWorkers, 100.0f); |
| // Only one poll attempt of one second to make failure faster |
| job.getConfiguration().setInt(GiraphJob.POLL_ATTEMPTS, 1); |
| job.getConfiguration().setInt(GiraphJob.POLL_MSECS, 1); |
| job.setVertexClass(SimpleCheckpointVertex.class); |
| job.setVertexInputFormatClass(SimpleSuperstepVertexInputFormat.class); |
| job.setVertexOutputFormatClass(SimpleSuperstepVertexOutputFormat.class); |
| Path outputPath = new Path("/tmp/" + getCallingMethodName()); |
| removeAndSetOutput(job, outputPath); |
| assertFalse(job.run(false)); |
| } |
| } |