| /* |
| * 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 org.apache.giraph.conf.GiraphConfiguration; |
| import org.apache.giraph.conf.GiraphConstants; |
| import org.apache.giraph.examples.SimpleCheckpointVertex; |
| import org.apache.giraph.examples.SimpleSuperstepVertex.SimpleSuperstepVertexInputFormat; |
| import org.apache.giraph.examples.SimpleSuperstepVertex.SimpleSuperstepVertexOutputFormat; |
| import org.apache.giraph.job.GiraphJob; |
| import org.apache.hadoop.fs.FileStatus; |
| import org.apache.hadoop.fs.Path; |
| import org.junit.Test; |
| |
| import java.io.IOException; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| /** |
| * Unit test for manual checkpoint restarting |
| */ |
| public class TestManualCheckpoint extends BspCase { |
| |
| public TestManualCheckpoint() { |
| super(TestManualCheckpoint.class.getName()); |
| } |
| |
| /** |
| * Run a sample BSP job locally and test checkpointing. |
| * @throws IOException |
| * @throws ClassNotFoundException |
| * @throws InterruptedException |
| */ |
| @Test |
| public void testBspCheckpoint() |
| throws IOException, InterruptedException, ClassNotFoundException { |
| Path checkpointsDir = getTempPath("checkPointsForTesting"); |
| Path outputPath = getTempPath(getCallingMethodName()); |
| GiraphConfiguration conf = new GiraphConfiguration(); |
| conf.setVertexClass( |
| SimpleCheckpointVertex.SimpleCheckpointComputation.class); |
| conf.setWorkerContextClass( |
| SimpleCheckpointVertex.SimpleCheckpointVertexWorkerContext.class); |
| conf.setMasterComputeClass( |
| SimpleCheckpointVertex.SimpleCheckpointVertexMasterCompute.class); |
| conf.setVertexInputFormatClass(SimpleSuperstepVertexInputFormat.class); |
| conf.setVertexOutputFormatClass(SimpleSuperstepVertexOutputFormat.class); |
| GiraphJob job = prepareJob(getCallingMethodName(), conf, outputPath); |
| |
| GiraphConfiguration configuration = job.getConfiguration(); |
| GiraphConstants.CHECKPOINT_DIRECTORY.set(configuration, checkpointsDir.toString()); |
| GiraphConstants.CLEANUP_CHECKPOINTS_AFTER_SUCCESS.set(configuration, false); |
| configuration.setCheckpointFrequency(2); |
| |
| assertTrue(job.run(true)); |
| |
| long idSum = 0; |
| if (!runningInDistributedMode()) { |
| FileStatus fileStatus = getSinglePartFileStatus(job.getConfiguration(), |
| outputPath); |
| idSum = SimpleCheckpointVertex.SimpleCheckpointVertexWorkerContext |
| .getFinalSum(); |
| System.out.println("testBspCheckpoint: idSum = " + idSum + |
| " fileLen = " + fileStatus.getLen()); |
| } |
| |
| // Restart the test from superstep 2 |
| System.out.println("testBspCheckpoint: Restarting from superstep 2" + |
| " with checkpoint path = " + checkpointsDir); |
| outputPath = getTempPath(getCallingMethodName() + "Restarted"); |
| conf = new GiraphConfiguration(); |
| conf.setVertexClass( |
| SimpleCheckpointVertex.SimpleCheckpointComputation.class); |
| conf.setWorkerContextClass( |
| SimpleCheckpointVertex.SimpleCheckpointVertexWorkerContext.class); |
| conf.setMasterComputeClass( |
| SimpleCheckpointVertex.SimpleCheckpointVertexMasterCompute.class); |
| conf.setVertexInputFormatClass(SimpleSuperstepVertexInputFormat.class); |
| conf.setVertexOutputFormatClass(SimpleSuperstepVertexOutputFormat.class); |
| GiraphJob restartedJob = prepareJob(getCallingMethodName() + "Restarted", |
| conf, outputPath); |
| configuration.setMasterComputeClass( |
| SimpleCheckpointVertex.SimpleCheckpointVertexMasterCompute.class); |
| GiraphConstants.CHECKPOINT_DIRECTORY.set(restartedJob.getConfiguration(), |
| checkpointsDir.toString()); |
| |
| assertTrue(restartedJob.run(true)); |
| if (!runningInDistributedMode()) { |
| long idSumRestarted = |
| SimpleCheckpointVertex.SimpleCheckpointVertexWorkerContext |
| .getFinalSum(); |
| System.out.println("testBspCheckpoint: idSumRestarted = " + |
| idSumRestarted); |
| assertEquals(idSum, idSumRestarted); |
| } |
| } |
| } |